Da ne bismo dalje zagađivali druge topike koji su tangencijalno vezani za temu proizvodnje (tj. konverzije), skladištenja, distribucije i potrošnje (tj. opet konverzije) energije samo zato što je energija vezana i za ekološka pitanja i za teorijsku fiziku itd., evo posebnog topika za energetska pitanja. Inauguracioni post nek bude ovaj:
Tesla's Battery Revolution Just Reached Critical Mass (https://www.bloomberg.com/news/articles/2017-01-30/tesla-s-battery-revolution-just-reached-critical-mass)
Quote
Tesla Motors Inc. is making a huge bet that millions of small batteries can be strung together to help kick fossil fuels off the grid. The idea is a powerful one—one that's been used to help justify the company's $5 billion factory (https://www.bloomberg.com/news/articles/2017-01-04/tesla-flips-the-switch-on-the-gigafactory) near Reno, Nev.—but batteries have so far only appeared in a handful of true, grid-scale pilot projects.
That changes this week.
Three massive battery storage plants—built by Tesla (https://www.bloomberg.com/news/articles/2016-09-15/tesla-wins-utility-contract-to-supply-grid-scale-battery-storage-after-porter-ranch-gas-leak), AES Corp. (http://aesenergystorage.com/2016/08/18/aes-to-deploy-37-5-mw-of-advancion-energy-storage-arrays-for-sdge/), and Altagas Ltd. (http://altagas.mwnewsroom.com/press-releases/altagas-celebrates-opening-of-north-america-s-largest-battery-storage-facility-tsx-ala-201701271084127001)—are all officially going live in southern California at about the same time. Any one of these projects would have been the largest battery storage facility ever built. Combined, they amount to 15 percent of the battery storage installed planet-wide last year.
Ribbons will be cut and executives will take their bows. But this is a revolution that's just getting started, Tesla Chief Technology Officer J.B. Straubel said in an interview on Friday. "It's sort of hard to comprehend sometimes the speed all this is going at," he said. "Our storage is growing as fast as we can humanly scale it."
A Fossil-Fuel DisasterThe new battery projects were commissioned in response to a fossil-fuel disaster—the natural gas leak at Aliso Canyon, near the Los Angeles neighborhood of Porter Ranch. It released thousands of tons of methane into the air before it was sealed last February.
In its wake, Southern California Edison (SCE) rushed to deploy energy storage deals to alleviate the risk of winter blackouts. There wasn't any time to waste: All of the projects rolling out this week were completed within 6 months, an unprecedented feat. Tesla moved particularly nimbly, completing in just three months a project that in the past would have taken years.
"There were teams working out there 24 hours a day, living in construction trailers and doing the commissioning work at two in the morning," Straubel said. "It feels like the kind of pace that we need to change the world."A Question of PriceThe battery storage industry—a key part of the plan if wind and solar power are to ever dominate the grid—is less than a decade old and still relatively small. Until recently, batteries were many times more expensive than natural gas "peaker" plants that fire up to meet surging demand in the evening and morning hours.
But prices for lithium-ion batteries have fallen fast—by almost half just since 2014. Electric cars are largely responsible, increasing demand and requiring a new scale of manufacturing for the same battery cells used in grid storage. California is mandating that its utilities begin testing batteries by adding more than 1.32 gigawatts (http://www.nrel.gov/docs/fy16osti/65061.pdf) by 2020. For context, consider this: In 2016, the global market for storage was less than a gigawatt.
California's goal is considerable, but it's dwarfed by Tesla's ambition to single-handedly deliver 15 gigawatt hours 1 (https://www.bloomberg.com/news/articles/2017-01-30/tesla-s-battery-revolution-just-reached-critical-mass#footnote-1485757043219) of battery storage a year by the 2020s—enough to provide several nuclear power plants–worth of electricity to the grid during peak hours of demand. Not everyone, however, is that optimistic.
"I'm not convinced," said Yayoi Sekine, a Bloomberg New Energy Finance analyst who covers battery technology. The market is "moving faster than ever, but it's not on the gigawatt scale yet."
Battery costs and profitability for utilities are difficult to evaluate. Companies are reluctant to give up their pricing data, and the expense is highly variable. Nevertheless, battery plants take up a much smaller footprint than gas-powered plants, they don't pollute, and their instant response can provide valuable services better than any other technology. In a small but increasing number of scenarios, batteries are already the most economical option.
But for the most part, according to a BNEF analysis, the costs of new projects would need to drop by half in order to be profitable on a wider scale in California, and that's not likely to happen for another decade. The total installed cost of a battery plant would need to fall to about $275 per kilowatt hour. While Tesla declined to provide its pricing data, the similarly sized Altagas project was expected to cost at least $40 million (http://www.marketwired.com/press-release/altagas-awarded-10-year-contract-to-provide-battery-storage-at-pomona-tsx-ala-2151054.htm), or $500 per kilowatt hour. It's possible that with the remarkable scope of Tesla's Reno operations, the company will be able to establish new floors for pricing, forcing the industry to follow, BNEF's Sekine said.
It's still early days, even with this week's announcements. It will probably be a few years before Tesla's battery-storage sales are material enough to break out separately from automotive sales on quarterly filings, Straubel said.The End of the Gas PeakerBut the battery's day is coming, while those of natural gas peaker plants are numbered. That's the prediction of John Zahurancik, AES's president of battery storage. Zahurancik is one of the pioneers of energy storage, having cobbled together profitable edge-case storage projects since 2008, when battery prices were 10 times higher than they are today.
AES has completed installation and is doing final testing of a 30 megawatt/120 megawatt hour plant that's even bigger than Tesla's 20 MW/80 MWh. AES is also working on a longer-term project that will be five times the size of Tesla's project when complete by 2021. 2 (https://www.bloomberg.com/news/articles/2017-01-30/tesla-s-battery-revolution-just-reached-critical-mass#footnote-1485769573648) That's a scale that would have been unimaginable a decade ago.
"This is my fifth time doing the largest project in the world for energy storage, and each time people tell me, 'well this is the test, this is really the test'" Zahurancik said in an interview Friday. "The next big test is how do we scale this up broadly."
The biggest thing that sets Tesla and AES apart is that Tesla is building the components of its storage units itself at the company's Gigafactory in Reno (https://www.bloomberg.com/news/articles/2017-01-04/tesla-flips-the-switch-on-the-gigafactory), including battery cells with partner Panasonic, modules, and inverters. Tesla says this vertical integration will help reduce costs and make a seamless system. AES says that dealing with a diverse supply chain allows it to seek the cheapest price and the best technology on the market. It's the same debate going on in the electric-car business, where Tesla is manufacturing an unprecedented percentage of its own parts in-house.
For now, gas peaker plants still win out on price for projects that aren't constrained by space, emissions, or urgency, said Ron Nichols, President of SCE, the California utility responsible for most of the biggest battery storage contracts. 3 (https://www.bloomberg.com/news/articles/2017-01-30/tesla-s-battery-revolution-just-reached-critical-mass#footnote-1485770562054) But that may change in the next five years, he said.
"Long term, will large amounts of batteries be able to take over?" Nichols asked. "We'll need to get some hours under our belts to know for sure."
—With assistance from Dana Hull.
Pa onda:
Researcher Develops Completely Explosion-Proof Lithium Metal Battery With 2X Power Of Lithium Ion (http://hothardware.com/news/researcher-develops-ionic-battery-2x-energy-density)
QuoteIt seems that we're constantly hearing about promising new battery technologies (http://hothardware.com/news/researchers-develop-lithium-ion-battery-built-in-fire-extinguisher) and eventually one of them will stick. Mike Zimmerman, a professor at Tufts University and founder of Ionic Materials, hopes that his remarkably resilient ionic battery technology will be the one that does. At a glance, his ionic battery technology appears to a legitimate shot at finally pushing the category forward in a significant way.
The reason scientists and researchers pay so much attention to battery design is because today's lithium-ion units have several downsides. As we saw recently with Samsung's Galaxy Note 7 recall (http://hothardware.com/news/samsung-cites-irregularly-sized-batteries-galaxy-note-7-explosions), they can overheat and catch fire. Even when they work correctly, lithium-ion batteries degrade over a relatively short time as they go through recharge cycles, and they don't last all that long to begin with.
If you were to take apart a lithium-ion battery, you'd find a positive electrode called the anode and a negatively charged electrode called the cathode. There's a thin sheet with microscopic pores called a separator that sits between the anode and cathode. Everything else is filled up with liquid, or electrolyte.
Charging the battery causes positively charged ions to flow through the liquid from the negative side to the positive side. As you use the battery, the ions flow in the opposite direction. It's a serviceable solution, but the electrolyte is extremely flammable and sensitive to being poked—they can explode when pierced. This is called thermal runaway, which is what the Galaxy Note 7's batteries experienced.
Zimmerman's ionic battery trades the flammable liquid for a piece of plastic film to serve as the electrolyte. It isn't prone to overheating and catching fire. You can even take a lighter to it and it still won't catch fire. The same goes for piercing it, cutting it, or otherwise destroying the battery in some other physical manner.
This is something Zimmerman has demonstrated by connecting an LED panel to his ionic battery. Even as he bends and cuts the battery, the LEDs remain lit. He's also done this while powering an iPad with his battery, as shown above.
That's not the only benefit. Unlike lithium-ion batteries, Zimmerman's ionic batteries use actual lithium-metal, which can store twice as much power. Lithium-ion batteries don't contain lithium-metal because they're even more prone to overheating and exploding than lithium-ion, but that risk is removed by Zimmerman swapping out the liquid electrolyte for a solid.
Will this be the next big thing in batteries? We don't know, though Zimmerman says that electronic companies have paid him a visit at his Ionic Materials facility in Woburn, MA. Zimmerman admits there is still a lot of reliability testing to be done and it will be difficult to scale his operations, but he's confident it can and will be accomplished.
https://vimeo.com/190245545
China is now the world's largest solar power producer (http://www.digitaltrends.com/cool-tech/china-solar-energy/)
Quote
While China's solar energy capacity isn't that impressive when compared to the size of its population, it's showing a renewed dedication to renewable energy.
Not only is it the world's most populous country, it's now also the world's biggest producer of solar energy (http://www.reuters.com/article/us-china-solar-idUSKBN15J0G7?utm_campaign=trueAnthem:+Trending+Content&utm_content=589663fb04d301059ff13d69&utm_medium=trueAnthem&utm_source=twitter). On Saturday, the National Energy Administration (NEA) noted that the nation officially claimed the title after doubling its installed photovoltaic (PV) capacity last year. By the end of 2016, China's capacity hit 77.42 gigawatts, and while this is great in terms of raw numbers, it's a lot less impressive relative to the country's massive population.
As it stands, solar energy represents only one percent of the country's energy output. But this may soon change as China devotes more and more of its attention towards clean energy. The NEA says that China will seek to add more than 110 gigawatts within the next three years, which could help the nation up the proportion of its renewable energy use to 20 percent by 2030. Today, it stands at 11 percent.
China's geography certainly lends itself to large solar energy farms. Last year, Shandong, Xinjiang, and Henan provinces enjoyed the greatest increase in their solar capacity, whereas Xinjiang, Gansu, Qinghai, and Inner Mongolia ended up with the most overall capacity at the end of 2016.
Weaning itself off of fossil fuels will require quite a hefty investment; one that China appears ready to make. As per a Reuters report, the nation will be pouring some 2.5 trillion yuan ($364 billion) into renewable power generation by the end of the decade. This dedication to environmentally friendly energy sources could put pressure on other nations around the world to do the same. Already, Ireland has passed a bill that would make it the first country to divest (http://www.digitaltrends.com/cool-tech/ireland-divest-fossil-fuel/) from fossil fuels. And some countries are finding increasingly creative ways of moving away from fossil fuels — Iceland, for example, is drilling the world's largest well for geothermal energy (http://www.digitaltrends.com/cool-tech/iceland-geothermal-energy/).
Pa, lepo:
Almost 90% of new power in Europe from renewable sources in 2016 (https://www.theguardian.com/environment/2017/feb/09/new-energy-europe-renewable-sources-2016)
Eto, ne kukajte zbog Trampa, sve će biti u redu!
Već smo pominjali da je skladištenje 'n' transfer problem koji treba rešiti ako želimo da živimo u eokološkom raju koji nam je Star Trek obećao. E, sad:
Liquid battery could last for over 10 years (https://www.engadget.com/2017/02/12/flow-battery-lasts-for-10-years/)
Quote
It might be an ideal form of energy storage for solar and wind power.
Modern batteries aren't hampered so much by their capacity as their long-term lifespan -- a lithium-ion pack can easily become useless after a few years of heavy use. That's bad enough for your phone, but it's worse for energy storage systems (https://www.engadget.com/2016/10/28/tesla-unveils-its-solar-roof-and-powerwall-2/) that may have to stick around for the long haul. If Harvard researchers have their way, you may not have to worry about replacing power backs quite so often. They've developed a flow battery (https://www.engadget.com/2017/02/10/co2-flow-cell-battery/) (that is, a battery that stores energy in liquid solutions) which should last for over a decade. The trick was to modify the molecules in the electrolytes, ferrocene and viologen, so that they're stable, water-soluble and resistant to degradation. When they're dissolved in neutral water, the resulting solution only loses 1 percent of its capacity every 1,000 cycles. It could be several years before you even notice a slight dropoff in performance.
The use of water is also great news for both the environment and your bank account. As it's not corrosive or toxic, you don't have to worry about wrecking your home if the battery leaks -- you might just need a mop. The safer materials are also less expensive than the polymers you usually need in flow batteries, and wouldn't require exotic pumps and tanks to withstand harsher chemicals. It needs less maintenance than other flow designs, too.
There's no concrete roadmap for bringing this battery tech to the real world. There's definitely a market for it, though. Renewable energy is becoming increasingly cost-effective (https://www.engadget.com/2014/09/22/ikea-solar-eight-more-countries/), and inexpensive, long-lasting batteries would only help that. You could install solar power at home knowing that the cost of energy storage won't wipe out the money you save on your electricity bill.
Često se priča da bi torijumski nuklearni reaktori bili najbolje rešenje za ovu planetu: velika gustina energije, gorivo koje je pristupačnije od uranijuma, plus mnogo manje cimanja oko otpada i bezbednosnih rizika. Evo svežeg, veoma opširnog teksta na biznis insajderu koji obrazlaže ovu argumentaciju, daje istorijat itd.:
A forgotten war technology could safely power Earth for millions of years. Here's why we aren't using it (http://www.businessinsider.com/thorium-molten-salt-reactors-sorensen-lftr-2017-2)
Ha, još ćemo mi videti parne automobile (http://www.znaksagite.com/diskusije/index.php?topic=11456.msg530279#msg530279) na torijumski pogon :)
Li-Ion Battery Inventor Creates Breakthrough Solid-State Battery, Holds 3X Charge (https://fossbytes.com/goodenough-solid-state-battery-glass-electrolyte/)
Quote
Short Bytes: A new glass electrolyte-based solid-state battery has been developed by the researchers at UT Austin. Led by the Li-ion battery inventor John Goodenough, the team demonstrated that their battery is better than Li-ion. It can hold an almost 3x charge, has more charging cycles, supports fast charging, and isn't prone to catch fire.
A new fast charging all solid-state battery has been created by a research team led by John Goodenough at the Cockrell School of Engineering. The American physicist John Goodenough got a Charles Stark Draper prize for the lithium-ion batteries which are now omnipresent in the digital world. It was decades ago, but even at 94, the physics pioneer isn't going to stop developing things that impress and benefit the human kind.
The team has published a research paper in the Energy & Environmental Science journal (http://pubs.rsc.org/en/Content/ArticleLanding/2017/EE/C6EE02888H#%21divAbstract). The noncombustible fast charging battery can hold a considerable amount of extra charge – almost three times – than the conventional batteries.
Goodenough says cheap batteries having more charging of cycles can improve the capabilities the battery driven cars and increase their adoption.
The design limitations of lithium batteries containing liquid electrolytes don't allow them to charge quickly. If done forcefully, it would lead to the formation of metal whiskers (dendrites). Eventually, a short circuit would happen, or the battery would explode. However, that's not the problem with the solid-state batteries.
The researchers have used a solid glass electrolyte in place of the liquid one. The glass electrolyte allows the researchers to use the alkali metal anode (negative side) which increases the charge density of the battery and prevents the formation of dendrites. Also, the glass electrolyte enables a battery to operate in extreme temperatures of -20-degree celsius.
Senior research fellow Maria Helena Braga (https://www.researchgate.net/profile/Maria_Braga4) has been working with Goodenough on this solid-state battery. She has been developing glass electrolyte since the last few years. It was until her collab with Goodenough, and another researcher, that she was able to come up with a new, now patented, version of the glass electrolyte.
Goodenough and Braga are working to improve their solid-state battery. Hopefully, some battery maker would step forward to adopt the new tech. Surely, solid-state batteries are the future, adding extra to miles to your Tesla ride or a day to your computer's life.
U Americi je vjetar pretekao vodu po količini energije koja se ovim putem proizvede/ uskladišti. Naravno, dosta su tu pomogle velike poreske olakšice.
US wind capacity surpasses hydro, overall generation to follow (https://arstechnica.com/science/2017/03/us-wind-capacity-surpasses-hydro-overall-generation-to-follow/)
Ilon Mask kao da je stvarno izašao iz stripa:
Elon Musk: I can fix South Australia power network in 100 days or it's free (https://www.theguardian.com/technology/2017/mar/10/elon-musk-i-can-fix-south-australia-power-network-in-100-days-or-its-free)
Quote from: Meho Krljic on 05-03-2017, 08:08:51
Li-Ion Battery Inventor Creates Breakthrough Solid-State Battery, Holds 3X Charge (https://fossbytes.com/goodenough-solid-state-battery-glass-electrolyte/)
E, sad:
Has lithium-battery genius John Goodenough done it again? Colleagues are skeptical (https://qz.com/929794/has-lithium-battery-genius-john-goodenough-done-it-again-colleagues-are-skeptical/)
Quote
Researchers have struggled for decades to safely use powerful—but flammable—lithium metal in a battery. Now John Goodenough, the 94-year-old father of the lithium-ion battery, is claiming a novel solution as a blockbuster advance.
If it proves out, the invention could allow electric cars to compete with conventional vehicles on sticker price. The improbable solution, described in a new paper (https://news.utexas.edu/2017/02/28/goodenough-introduces-new-battery-technology) from Goodenough and three co-authors, has drawn intense interest from leading science (https://blogs.scientificamerican.com/plugged-in/engineers-introduce-a-new-fast-charging-noncombustible-battery/) and technology publications. He estimates that the solution could store five to ten times as much energy as current standard lithium-ion batteries. That's enough to have Google's Eric Schmidt tweeting about it.
However, other leading battery researchers are skeptical, even mystified, by Goodenough's claim. For his invention to work as described, they say, it would probably have to abandon the laws of thermodynamics, which say perpetual motion is not possible. The law has been a fundamental of batteries for more than a century and a half.
Goodenough's long career has defined the modern battery industry. Researchers assume that his measurements are exact. But no one outside of Goodenough's own group appears to understand his new concept. The battery community is loath to openly challenge the paper, but some come close. "If anyone but Goodenough published this, I would be, well, it's hard to find a polite word," Daniel Steingart, a professor at Princeton, told Quartz.
Goodenough did not respond to emails. But in a statement released (https://news.utexas.edu/2017/02/28/goodenough-introduces-new-battery-technology) by the University of Texas, where he holds an engineering chair, he said, "We believe our discovery solves many of the problems that are inherent in today's batteries. Cost, safety, energy density, rates of charge and discharge and cycle life are critical for battery-driven cars to be more widely adopted." In addition, Helena Braga, the paper's lead author, in an exchange of emails, insisted that the team's claims are valid.Goodenough towers over the battery worldFor almost four decades, Goodenough has dominated the world (https://qz.com/338767/the-man-who-brought-us-the-lithium-ion-battery-at-57-has-an-idea-for-a-new-one-at-92/) of advanced batteries. If anyone could finally make the breakthrough that allows for cheap, stored electricity in cars and on the grid, it would figure to be him. Goodenough invented the heart of the battery that is all but certainly powering the device on which you are reading this. It's the lithium-cobalt-oxide cathode, invented in 1980 and introduced for sale by Sony in 1991. Again and again, Goodenough's lab has emerged with dramatic discoveries confirming his genius.
"If anyone but Goodenough published this, I would be, well, it's hard to find a polite word," Still, batteries remain wanting. Inferior battery technology is perhaps the biggest impediment to mainstream electric-car manufacturing. Batteries cost too much, take too long to charge, and don't transport drivers far enough.
Hence the excitement over the new paper (http://pubs.rsc.org/en/Content/ArticleLanding/2017/EE/C6EE02888H#%21divAbstract) by Goodenough and his team published in Energy and Environmental Science. A Feb. 28 release (https://news.utexas.edu/2017/02/28/goodenough-introduces-new-battery-technology) from the University of Texas reported they had figured out how to incorporate an electrode—an anode—made of pure lithium or sodium metal, which because of their potential energy has been a top goal for decades. A key is the use of glass as the electrolyte, the substance that connects a battery's two electrodes and facilitates the shuttling of ions to create electricity.
Goodenough reported that his new battery cell had achieved a 10-fold improvement in energy density—the amount of energy stored—in one case, and a three-fold improvement in another. In one experiment, Goodenough estimates a 30-fold improvement on the best density in a lithium-ion battery today—8,500 watt-hours per kilogram. Moreover, this was accomplished not using exotic materials, but cheap sodium and sulfur. That means, unlike many other reported battery breakthroughs, this one could actually be used in mainstream-priced cars.Still, the paper has baffled battery researchersIt's what is not stated in the paper that has some of the battery community stumped. How is Goodenough's new invention storing any energy at all? The known rules of physics state that, to derive energy, differing material must produce differing eletro-chemical reactions in the two opposing electrodes. That difference produces voltage, allowing energy to be stored.
It's kind of like cold fusion. Here is an experiment that is unbelievable. But Goodenough's battery has pure metallic lithium or sodium on both sides. Therefore, the voltage should be zero, with no energy produced, battery researchers told Quartz.
Goodenough reports energy densities multiple times that of current lithium-ion batteries. Where does the energy come from, if not the electrode reactions? That goes unexplained in the paper.
The unstated physics would lead to creation of a battery that, once charged, requires no further energy in order to keep pushing out electricity—violating the laws of thermodynamics. "He's technically made a perpetual motion machine," said Venkat Viswanathan, a professor at Carnegie Mellon University in Pittsburgh, Pennsylvania.
"It's kind of like cold fusion. Here is an experiment that is unbelievable," said Dalhousie University's Jeff Dahn, a leading researcher whose Canadian laboratory is on a contract with Tesla. "There could be a small possibility that it is right."
Steingart, the Princeton professor, has published a long essay (https://medium.com/@steingart/a-potential-big-deal-in-batteries-298c7ad9543a#.d63ntx4tt) about the paper at Medium (see his notes below). He is among researchers calling Goodenough's stealth energy "anomalous capacity." Both he and Dahn wondered whether oxygen had leaked into the cell, making it an inadvertent "lithium air" battery that would explain the burst of energy. Lithium air is a second Holy Grail of battery researchers, even more elusive than the metallic lithium anode; no one has ever made one that lasted more than a few cycles.(https://qzprod.files.wordpress.com/2017/03/steingart.png?w=50)Steingart tries to figure out Goodenough. (Dan Steingart)Braga, the lead author on the paper, rejects the lithium-air explanation, insisting that the concept is solid: "Well if we have a Lithium-air battery then we have a very good Lithium-air battery," she said, noting that the experiment ran for hundreds of cycles, far longer than any rechargeable lithium-ion battery. Here is the diagram to which Braga is referring:(https://qzprod.files.wordpress.com/2017/03/screen-shot-2017-03-18-at-1-32-16-pm.png?w=50) (Braga, Grundish, Murchison and Goodenough)The history of battery advances—and Goodenough's history in particular—has been filled with surprises. In at least two cases—the development of the pivotal manganese oxide cathode and of the iron phosphate cathode—Goodenough initially disbelieved his post-docs when they suggested the theses, only to be proven wrong.
In an email exchange, Steingart said, "There's not a question in my mind that Goodenough and company measured what they say they measured based on what they thought was in the cell. The question is why did the system behave the way it did, and the explanation as to why raises many questions."
Japanese company develops a solar cell with record-breaking 26%+ efficiency (https://arstechnica.com/science/2017/03/japanese-company-develops-a-solar-cell-with-record-breaking-26-efficiency/)
Blumberg tvrdi da je ugalj gotov:
The Cheap Energy Revolution Is Here, and Coal Won't Cut It (https://www.bloomberg.com/news/articles/2017-04-26/the-cheap-energy-revolution-is-here-and-coal-won-t-cut-it)
Navodnici su ovde s razlogom, ali ipak, zanimljivo:
A "World First" Fusion Reactor Just Created Its First Plasma (https://futurism.com/a-world-first-fusion-reactor-just-created-its-first-plasma/)
Quote
- Tokamak Energy's fusion reactor has achieved first plasma and is on track to produce temperatures of 100 million degrees Celsius (180 million degrees Fahrenheit) by 2018.
- Tokamak Energy CEO says to expect fusion energy "in years, not decades."
Achieving First Plasma After being turned on for the first time, the UK's newest fusion reactor has achieved first plasma. This simply means that the reactor was able to successfully generate a molten mass of electrically-charged gas — plasma — inside its core.
Called the ST40, the reactor was constructed by Tokamak Energy (http://www.tokamakenergy.co.uk/), one of the leading private fusion energy companies in the world. The company was founded in 2009 with the express purpose of designing and developing small fusion reactors to introduce fusion power into the grid by 2030.
Now that the ST40 is running, the company will commission and install the complete set of magnetic coils needed to reach fusion temperatures. The ST40 should be creating a plasma temperature as hot as the center of the Sun — 15 million degrees Celsius (27 million degrees Fahrenheit) — by Autumn 2017.
By 2018, the ST40 will produce plasma temperatures of 100 million degrees Celsius (180 million degrees Fahrenheit), another record-breaker for a privately owned and funded fusion reactor. That temperature threshold is important, as it is the minimum temperature for inducing the controlled fusion reaction. Assuming the ST40 succeeds, it will prove that its novel design (https://futurism.com/tokamak-reactors/) can produce commercially viable fusion power.
Tokamak Energy CEO David Kingham commented in a press release (http://www.tokamakenergy.co.uk/first-plasma-in-new-reactor-brings-the-uk-a-big-step-closer-to-fusion-energy/): "Today is an important day for fusion energy development in the UK, and the world. We are unveiling the first world-class controlled fusion device to have been designed, built, and operated by a private venture. The ST40 is a machine that will show fusion temperatures – 100 million degrees – are possible in compact, cost-effective reactors. This will allow fusion power to be achieved in years, not decades."
Fusion Power: Coming Sooner Nuclear fusion (https://www.sciencealert.com/the-uk-has-just-switch-on-its-tokamak-nuclear-fusion-reactor) is a potentially revolutionary power source. It is the same process that fuels stars like our Sun, and could produce a potentially limitless supply of clean energy without producing dirty waste or any significant amount of carbon emissions (https://futurism.com/if-we-want-to-survive-we-need-to-go-carbon-neutral/). In contrast to nuclear fission, the atom splitting that today's nuclear reactors engage in, nuclear fusion requires salt and water, and involves fusing atoms together. Its primary waste product is helium. It's easy to see why scientists have tried to figure out how to achieve this here on Earth, but thus far it's been elusive.
The journey toward fusion energy (https://futurism.com/theres-no-argument-against-nuclear-power/) undertaken by Tokamak Energy is planned in the short-term and moving quickly; the company has already achieved its half-way goal for fusion power delivery. Their ultimate targets include producing the first electricity using the ST40 by 2025 and producing commercially viable fusion power by 2030 (https://futurism.com/fusion-energy-compact-spherical-tokamak-is-100-times-smaller-than-iter-could-operate-decades-earlier/).
Kingham remarked in the press release: "We will still need significant investment, many academic and industrial collaborations, dedicated and creative engineers and scientists, and an excellent supply chain. Our approach continues to be to break the journey down into a series of engineering challenges, raising additional investment on reaching each new milestone."
Ovo je, naravno, više revijalnog tipa - u normalne dane Nijemci uglavnom prže ugalj za svoje energetske potrebe - ali je svejedno vredno pomenuti:
In record-breaking weekend, Germany got 85% of its electricity from renewables (https://www.digitaltrends.com/cool-tech/germany-renewable-energy-85-percent/)
QuoteGermany is kicking all kinds of sustainable butt when it comes to its use of renewable energy sources. According to recently released figures (http://reneweconomy.com.au/graph-of-the-day-germanys-record-85-renewables-over-weekend-60743/), for the last weekend of April, the country established a jaw-dropping new national record in this department — with 85 percent of all electricity consumed in Germany being produced through wind, solar, biomass, and hydroelectric power.
Aided by a seasonal combination of windy but sunny weather, during that weekend the majority of Germany's coal-fired power stations weren't even operating, while nuclear power stations (which the country plans to phase out by the year 2022) were massively reduced in output.
To be clear, this is impressive even by Germany's progressive standards. By comparison, in March just over 40 percent of all electricity consumed in the country came from renewable sources. (According to the most recent figures we could find, in 2015 just 16.9 percent of the electrical generation in the United States (http://www.renewableenergyworld.com/articles/2016/08/renewable-energy-was-16-9-percent-of-u-s-electric-generation-in-the-first-half-of-2016.html) came from renewable sources.)
However, while the end-of-April weekend was an aberration, the hope is that it won't be for too much longer. According to Patrick Graichen of the country's sustainability-focused Agora Energiewende Initiative, German renewable energy percentages in the mid-80s should be "completely normal" by the year 2030.
This is all thanks to an aggressive focus on investing in renewable energy resources, which have seen a massive boost since 2010. Despite criticism from some parts of the media, the push to embrace sustainable energy sources has received strong support from the German public, as well as from chancellor Angela Merkel.
In all, it's a timely reminder of what renewable energy sources are able to deliver if given the chance. While private companies like Apple (https://www.digitaltrends.com/mobile/apple-2017-environment-responsibility-report/) in the U.S. have made their pro-sustainability stance clear, for the most part this is still an area the United States is lagging behind other parts of the world — particularly Germany.
Vikend ili čitava sedmica?
Jbt ili ja ne kontam ovaj ingliš ili ga spinuju do zla boga
Tri puta u tekstu piše weekend, pa ti vidi šta to znači.
Pa zašto je onda ovo vijest?
Kad rade fabrike onda dere nuklearka.
Vest je zato što se to nikada ranije nije desilo.
U Parovima išćerali demone iz Jovane, to je vijest bre
Quote from: Meho Krljic on 14-05-2017, 07:41:34
Ovo je, naravno, više revijalnog tipa - u normalne dane Nijemci uglavnom prže ugalj za svoje energetske potrebe - ali je svejedno vredno pomenuti:
manje je revijalnog tipa no sto se cini na prvu.
elem, njemacka je na "pravom putu" iz nekoliko razloga, te takav vikend nikako slucajan, u svrhu reklame ili slicnog.
prvo, njemacka zivi od visoke tehnologije.
nekad davno je lobi oko solarne energije nadjacao nuklearni. dogovor je bio jednostavan: drzava nama milijarde, mi drzavi naprednu tehnologiju koja ce postati hit u izvozu.
tu je solarna energija krajnje ozbiljno subvencionirana, moze se reci bez ogranicenja velikodusno.
tom prilikom velika sredstva su ulagana u formiranje svijesti naroda, bez kojeg pravac nije bio moguc, t.j. bio je kupac sredstva proizvodnje energije; znaci, dio sredstava ulagan je u usmjeravanje ka regenerativnim izvorima energije.
tako fenomen postaje omasovljen.
tehnologiju konacno kopiraju kinezi, preplavljaju svijet svojim proizvodima, uvode se carinske mjere, ne luce zadovoljavajuci rezultat, kinezi pobjedjuju pri dumpingu, nedavno i zadnja evropska proizvodnja odredjenih modula prijavljuje stecaj.
ali ostaje svijest u obrazovanog naroda (t.j. jednom obrazovanje ironicno polucuje i uspjeh, znaci, van svrhe osposobljavanja bezmozdne mase, t.j. alfabetizacije i tako mogucnosti manipulacije kroz kurir i informer, a koja je inace najjaca kad u skladu svojih mogucnosti i intelektualnog kapaciteta: nepismena i u oslanjanju na dobrog diktatora).
prilikom razvoja svijesti, omasovljenja ideje, ujedno se posljedicno iz nekoliko razloga liberalizira trziste energije. konkurencija izmedju stotinjak ponudjivaca cini ostalo:
omasovljenoj svijescu za potrebom regenerativne energije moras ponuditi adekvatan proizvod. tako da ne moze opstati nitko tko ne nudi izbor opcije iz kojeg izvora zelim crpiti energiju (tu postoji milion stvarcica, van osnovne opskrbe mogu birati i koji energetski izvor koristim i kad se vozim javnim prevozom).
sad, tehnoloski nije izvodivo u ril tajmu uskladiti unos energije u mrezu sa specificnom potrosnjom (vrstom potrazivanog izvora energije). i tako, taj vikend se rabio da se izjednaci prevaga potrosnje energije koju narod ne zeli, u korist one koju platio.
primjer kako se opismenjivanje tumplaste mase ponekad ipak moze okrenuti protiv vladajuce kaste.
sad, posto smo na knjizevnom forumu koji se bavi sf-om, u tom duhu jedan hint kako napisati pricu koja se moze poslati na kakav internacionalni natjecaj koji se ne bavi nob-om:
uzmite okvir koji upravo izesejisao, ubacite elemente koje naveo, pa izucite k. dicka, te u njegovom stilu odaberite jedan element koji izvucete iz trenutacno realnog okvira, zategnite ga (kao primjer moze vam posluziti prica gdje dick obradio pobacaj, te pomjerio granicu legalnog abortusa na dob od 12 godina).
i imate odlicnu sf-pricu.
Znam da ovo zvuči kao početak zapleta Matriksa, ali zapravo deluje kao odlično rešenje za pejsmejkere i slične sprave:
New Battery Technology Draws Energy Directly From Human Body (https://www.bleepingcomputer.com/news/technology/new-battery-technology-draws-energy-directly-from-human-body/)
Switzerland votes to phase out nuclear power (http://www.bbc.com/news/world-europe-39994599)
Quote
Switzerland has voted to phase out nuclear power in favour of renewable energy.
More than 58% backed the move towards greener power sources in a referendum on Sunday.
Switzerland has five ageing nuclear power plants, which provide a third of the country's energy needs.
There is no date yet to decommission the facilities, but the country will now aim to increase reliance on sources like solar, wind and hydro power.
Opponents had warned the move away from nuclear energy would cost too much money and lead to the landscape being "disfigured".
But the president of Switzerland's Green party, Regula Rytz, hailed the vote as a "moment of historic change".
"The Swiss population has said 'no' to the construction of new nuclear power plants and yes to the development of renewable energy," she added. "The conditions have also been set whereby the economy and households will need to take responsibility for the future.
"It's absolutely magnificent."
The Swiss government first proposed phasing out nuclear energy in favour of renewables after Japan's Fukushima plant was destroyed in a tsunami in 2011.
The vote now paves the way for them to move ahead with the plan, beginning in January 2018.
However, a referendum which asked if people wanted to limit the nuclear plants lifespan to 45 years failed to get enough support in November.
Vole vještačka jezera u Švici, kao to je manja eko katastrofa od nuklearki. Naivčine!
Naslov je malčice nejasan jer deluje skoro kao da je izmišljeno sagorevanje u kome se ne proizvodi ugljendioksid, ali u pitanju je zapravo tehnologija koja omogućava da se ugljendioksid izdvoji od ostalih produkata sagorevanja i skladišti, bez ispuštanja u atmosferu.
New Technology Burns Natural Gas with No CO2 Emissions (https://scienceblog.com/494192/new-technology-burns-natural-gas-no-co2-emissions/)
Quote
How can we burn natural gas without releasing CO2 into the air? This feat is achieved using a special combustion method that TU Wien has been researching for years: chemical looping combustion (CLC). In this process, CO2 can be isolated during combustion without having to use any additional energy, which means it can then go on to be stored. This prevents it from being released into the atmosphere.
The method had already been applied successfully in a test facility with 100 kW fuel power. An international research project has now managed to increase the scale of the technology significantly, thus creating all the necessary conditions to enable a fully functional demonstration facility to be built in the 10 MW range.
Isolating CO2 from other flue gases
It is much cleaner to burn natural gas than to burn crude oil or coal. However, natural gas has the huge disadvantage that it generates CO2 during combustion, which has a detrimental effect on the climate. The CO2 is usually part of the flue gas mixture, together with nitrogen, water vapour and other substances. In this mixed form, the CO2 can neither be stored nor feasibly recycled.
"In the facilities we are working with, however, the combustion process is fundamentally different," explains Stefan Penthor from the Institute of Chemical Engineering at TU Wien. "With our combustion method, the natural gas does not come into contact with the air at all, because we divide the process into two separate chambers."
A granulate made of metal oxide circulates between the two chambers and is responsible for transporting oxygen from air to fuel: "We pump air through one chamber, where the particles take up oxygen. They then move on to the second chamber, which has natural gas flowing through it. Here is where the oxygen is released, and then where flameless combustion takes place, producing CO2 and water vapour," explains Penthor.
The separation into two chambers means there are two separate flue gas streams to deal with too: air with a reduced concentration of oxygen is discharged from one chamber, water vapour and CO2 from the other. The water vapour can be separated quite easily, leaving almost pure CO2, which can be stored or used in other technical applications. "The large-scale underground storage of CO2 in former natural gas reservoirs could be very significant in the future," believes Stefan Penthor. The United Nations Intergovernmental Panel on Climate Change (IPCC) also sees underground CO2 storage as an essential component of any future climate policy. However, CO2 can only be stored if it has been separated as pure as possible – just as it is with the new CLC combustion method.
By separating the two flue gas streams, there is no longer any need to scrub the CO2 from the flue gas, thus saving a great deal of energy. Despite all this, electricity is generated in the usual way and the amount of energy released is exactly the same as that produced when burning natural gas in the conventional manner.
Successfully scaled up
Several years have passed since TU Wien was first able to demonstrate on a test facility that the CLC combustion method works. Now the big challenge was to redesign the process so it could be transferred to large-scale installations that would also be economically viable. Not only did the entire facility design have to be revised, new production methods for the metal oxide particles had to be developed too. "You need many tonnes of these particles for a large facility, so the economic feasibility of the concept depends significantly on being able to produce them easily and to a sufficiently high degree of quality," says Stefan Penthor.
The SUCCESS research project has been working on issues like this one for three and a half years now. TU Wien has coordinated the project, involving 16 partner establishments from across the Europe, and between them, the group has managed to resolve all the important technical questions. The revised facility design was based on two fluidised bed technology patents held by TU Wien. "We've reached our goal: we've developed the technology to such a degree that work on a demonstration facility in the 10 MW range can begin any day now," says Stefan Penthor. However, that next step is not one for the research institutes; what is needed now are private or public investors. The technology's success will also depend on political will and on the prevailing conditions within the energy industry of the future. Additionally, this next step is also important because it is the only way to gain the experience necessary to be able to use the technology on an industrial scale in the long term.
In the meantime, the TU Wien research team has already set its sights on its next scientific goal: "We want to develop the method further so it can burn not just natural gas, but biomass too," says Penthor. "If biomass were combusted and the CO2 separated out, not only would that be a CO2-neutral process, it would even reduce the total amount of CO2 in the air. So you could produce energy and do something good for the global climate at the same time."
Eto, sav vam reko da će sve biti u redu, samo mac oće da se grije na šargarepu
Male su šanse da će ovaj proces biti konkurentan drugim obnovljivim vidovima energije. Istina je da se zauzuma manje mesta na površini Zemlje, ali moraš deo dobijene energije da uložiš u kompresovanje ugljendioksida. I uvek postoji opasnost da se to uradi loše i pogrešno, i da kompanija "deponuje" ugljendioksid, a zapravo da taj ugljendioksid prosto curi na sve strane u proizvodnom procesu. I za razliku od radioaktivnog curenja ovo curenje se ne može tako lako detektovati. Dakle skupo i opasno. A skupoća će vremenom proizvođača navoditi da posluje još opasnije.
Takođe, umesto da se ugljendoiksid ispušta u atmosferu kiseonik iz atmosfere bi se vezivao za ugljenik i uklanjao iz atmosfere. Koncentracija ugljendioksida bi se time povećavala, ali naravno bitno manje nego prostom emisijom. Znači i dalje će morati da plaćaju CO2 taksu, kad se uvede, samo manju.
Solarna energija je budućnost, i zbog solarne energije ja verujem da će sve biti u redu, a ne zbog ove prevare.
'Instantly rechargeable' battery could change the future of electric and hybrid automobiles (https://www.sciencedaily.com/releases/2017/06/170601151813.htm)
Quote
A technology developed by Purdue researchers could provide an "instantly rechargeable" method that is safe, affordable and environmentally friendly for recharging electric and hybrid vehicle batteries through a quick and easy process similar to refueling a car at a gas station.
The innovation could expedite the adoption of electric and hybrid vehicles by eliminating the time needed to stop and re-charge a conventional electric car's battery and dramatically reducing the need for new infrastructure to support re-charging stations.
John Cushman, Purdue University distinguished professor of earth, atmospheric and planetary science and a professor of mathematics, presented the research findings "Redox reactions in immiscible-fluids in porous media -- membraneless battery applications" at the recent International Society for Porous Media 9th International Conference in Rotterdam, Netherlands.
Cushman co-founded Ifbattery LLC (IF-battery) to further develop and commercialize the technology.
"Electric and hybrid vehicle sales are growing worldwide and the popularity of companies like Tesla is incredible, but there continues to be strong challenges for industry and consumers of electric or hybrid cars," said Cushman, who led the research team that developed the technology. "The biggest challenge for industry is to extend the life of a battery's charge and the infrastructure needed to actually charge the vehicle. The greatest hurdle for drivers is the time commitment to keeping their cars fully charged."
Current electric cars need convenient locations built for charging ports.
"Designing and building enough of these recharging stations requires massive infrastructure development, which means the energy distribution and storage system is being rebuilt at tremendous cost to accommodate the need for continual local battery recharge," said Eric Nauman, co-founder of Ifbattery and a Purdue professor of mechanical engineering, basic medical sciences and biomedical engineering. "Ifbattery is developing an energy storage system that would enable drivers to fill up their electric or hybrid vehicles with fluid electrolytes to re-energize spent battery fluids much like refueling their gas tanks."
The spent battery fluids or electrolyte could be collected and taken to a solar farm, wind turbine installation or hydroelectric plant for re-charging.
"Instead of refining petroleum, the refiners would reprocess spent electrolytes and instead of dispensing gas, the fueling stations would dispense a water and ethanol or methanol solution as fluid electrolytes to power vehicles," Cushman said. "Users would be able to drop off the spent electrolytes at gas stations, which would then be sent in bulk to solar farms, wind turbine installations or hydroelectric plants for reconstitution or re-charging into the viable electrolyte and reused many times. It is believed that our technology could be nearly 'drop-in' ready for most of the underground piping system, rail and truck delivery system, gas stations and refineries."
Mike Mueterthies, Purdue doctoral teaching and research assistant in physics and the third co-founder of Ifbattery, said the flow battery system makes the Ifbattery system unique.
"Other flow batteries exist, but we are the first to remove membranes which reduces costs and extends battery life," Mueterthies said.
Ifbattery's membrane-free battery demonstrates other benefits as well.
"Membrane fouling can limit the number of recharge cycles and is a known contributor to many battery fires," Cushman said. "Ifbattery's components are safe enough to be stored in a family home, are stable enough to meet major production and distribution requirements and are cost effective."
Ifbattery licensed part of the technology through the Purdue Research Foundation Office of Technology Commercialization and has developed patents of its own. The company is a member of the Purdue Startup Class of 2017.
Story Source:
Materials (http://www.purdue.edu/newsroom/releases/2017/Q2/instantly-rechargeable-battery-could-change-the-future-of-electric-and-hybrid-automobiles.html) provided by Purdue University (http://www.purdue.edu/). Original written by Cynthia Sequin. Note: Content may be edited for style and length.
Tesla plans to disconnect 'almost all' Superchargers from the grid and go solar+battery, says Elon Musk (https://electrek.co/2017/06/09/tesla-superchargers-solar-battery-grid-elon-musk/)
Lepa ideja, ali, čini se, funkcionalna samo ako ne punite baš MNOGO vozila tokom dana i ako je vreme stalno lepo... Still, lepa ideja.
There is a point at which it will make economic sense to defect from the electrical grid (https://qz.com/1017457/there-is-a-point-at-which-it-will-make-economic-sense-to-defect-from-the-electrical-grid/)
Ja sam već, čini mi se, izrazio svoje nelagode u vezi individualizacije proizvodnje/ skladištenja energije koje mi malo kvare priznajem utopijsku viziju nestajanja moćnih energetskih lobija... U svakom slučaju, stvari se kreću na neku stranu.
Kalifornija proizvodi toliko solarne energije da nema gde da je skladišti, pa plaća drugim američkim državama da je uzmu od nje. 1st World problems!!!!!!!!!!
https://mic.com/articles/180607/california-is-making-so-much-solar-energy-the-rest-of-the-country-looks-like-a-joke#.YImspnUwH
Eh, videćemo....
Renewable energy is becoming so cheap the US will meet Paris commitments even if Trump withdraws (https://qz.com/1024520/renewable-energy-is-becoming-so-cheap-the-us-will-meet-paris-commitments-even-if-trump-withdraws/)
Here's Elon Musk's Plan to Power the U.S. on Solar Energy (https://www.inverse.com/article/34239-how-many-solar-panels-to-power-the-usa)
Quote
"If you wanted to power the entire United States with solar panels, it would take a fairly small corner of Nevada or Texas or Utah; you only need about 100 miles by 100 miles of solar panels to power the entire United States," Musk said during his keynote conversation on Saturday at the event in Rhode Island. "The batteries you need to store the energy, so you have 24/7 power, is 1 mile by 1 mile. One square-mile."It's "a little square on the U.S. map, and then there's a little pixel inside there, and that's the size of the battery park that you need to support that. Real tiny."
Ima još u tekstu, mrzelo me da kopiram sve ali ovaj deo je baš interesantan.
Pa da, neko reče Sahara za čitavu Evropu i Afriku.
World's first floating wind farm emerges off coast of Scotland (http://www.bbc.com/news/business-40699979)
Dead Set Legends: Australian Scientists Just Worked Out How Zinc-Air Batteries Can Replace Lithium-Ion Batteries (https://www.gizmodo.com.au/2017/08/dead-set-legends-australian-scientists-just-worked-out-how-zinc-air-batteries-can-replace-lithium-ion-batteries/)
Za obnovljive izvore energije se često kaže da nisu dovoljno atraktivni jer bez subvencija nisu isplativi na jako duge staze. Health benefits of wind and solar offset all subsidies (https://arstechnica.com/science/2017/08/wind-and-solar-energy-have-saved-thousands-of-lives-since-2007/)
Finland to introduce law next year phasing out coal (https://www.reuters.com/article/finland-coal-carbon/finland-to-introduce-law-next-year-phasing-out-coal-idUSL8N1LH51D)
China joins the growing movement to ban gasoline and diesel cars (https://arstechnica.com/cars/2017/09/china-joins-the-growing-movement-to-ban-gasoline-and-diesel-cars/)
Britain opens first subsidy-free solar power farm (https://uk.reuters.com/article/us-britain-solar-subsidies/britain-opens-first-subsidy-free-solar-power-farm-idUKKCN1C10L5)
Optimistično.
Solar Grew Faster Than All Other Forms of Power for the First Time (https://www.bloomberg.com/news/articles/2017-10-04/dawn-of-solar-age-declared-as-pv-beats-all-other-forms-of-power)
Puerto Rico governor says 'Let's talk' after Elon Musk offers to solve the island's power crisis (https://techcrunch.com/2017/10/06/puerto-rico-governor-says-lets-talk-after-elon-musk-offers-to-solve-the-islands-power-crisis/)
Rice University adds a bit of asphalt to speed lithium metal battery charging by 20 times (https://www.nextbigfuture.com/2017/10/rice-university-adds-a-bit-of-asphalt-to-speed-lithium-metal-battery-charging-by-20-times.html)
Pre milijon godina sam ponešto znao o visokoj poroznosti aktivnih ugljeva. Čak sam i napisao SF priču o avanturi pronalazača novog univerzalnog goriva - briketa aktivnog uglja. Ko zna gde je završila. Možda u rubrici "Svašta i koješta", koju su pokupili oni koji su pokrenuli otmicu Damjana Fileva u romanu UNAZAD.
The Dutch government confirms plan to ban new petrol and diesel cars by 2030 (https://electrek.co/2017/10/10/netherlands-dutch-ban-petrol-diesel-cars-2030-electric-cars/)
Dobro, bar su ovde malo bliskiji svom nekadašnjem "Don't be evil" sloganu:
Google Will Hit 100 Percent Renewable Energy This Year (https://www.inverse.com/article/37308-google-renewable-energy-goal)
Why China is winning the clean energy race (https://www.axios.com/why-china-is-winning-the-clean-energy-race-2496091771.html)
Više im stalo?
Italy proposes phasing out coal power plants by 2025 (http://af.reuters.com/article/commoditiesNews/idAFS8N1KP009)
Da ne bude da sam propustio.
Nisam siguran da je ukidanje bilo kakvog izvora energije pametno. Svaki energetski resurs ima svoju dobru, ali i lošu stranu. Ugalj doista ima niz loših momenata, znamo da sagorevanje uglja zagađuje atmosferu, remeti sadržaj CO2 ali to i krave rade. Dalje, zalihe nisu neiscrpne, a za obnovu bi nam trebala neka nova kataklizma. Isto važi i za naftu, a razlika je što je ugalj "vegetarijanski", a nafta "dinosaurska". Eksploatacija devastira kako nadzemlje tako i podzemlje. Da čovek poželi da se prestane i sa jednim i sa drugim izvorom. Izgleda da se propušta još nešto važno: jalovina od loženja uglja je radioaktivnija od uglja. Nekako u njoj zaostane sva radioaktivnost, a i to je neko zlo.
Izgledalo je da energija voda radi posao, ali i ona nam pravi sekundarne probleme. Na stranu što nanosi mulja vremenom obaraju početni potencijal, menja se i topografija, na primer, Đerdap je podigao nivo podzemnih voda u Južnom Banatu. Ni nuklearne elektrane nas nisu usrećile. Hoće da zakažu, a kad puknu naprave nemerljivo veću štetu od koristi. Da ne pominjem otpadni materijal, on se najbolje može upotrebiti za proizvodnju probojnih košuljica bombi i raketa što smo itekako dobro saznali.
Zato ću pomenuti najznačajnijeg člana društva "Lazar Komarčić", dragog profesora, pisca, našeg vodećeg ekologa i kako je on govorio boksera. prof. dr Miliju Jankovića. U godinama razgradnje SFRJ pokušali su da ga na TV angažuju oko neke izjave protiv nuklearne elektrane "Krško". Odgovorio im je da pristaje, ali da je kao ekolog obavezan da istakne i sve druge štete koje nastaju eksploatacijom raznih izvora energije. Naravno da su odustali. Ovde ovo pišem umesto njega.
Budući da više nije sa nama, ispričaću vam priču o mogućim posledicama "novih" vrsta energija. Ako mislite da su u pitanju epohalno novi izvori, to nije tačno. U žurnalističkim izvorima dvadesetih i tridesetih godina prošlog veka, razmatrala se i energija plime i geotermalna i svašta nešto još. Vetrovi i solarna energija su sasvim zgodna rešenja, naizgled bez devastacija, ali optimizam mora da bude racionalan, a ne radikalan. Trebalo bi opasno razmišljati i procenjivati koju štetu oni donose.Nemojte da ispadne da su rizičniji po klimu od svih dosadašnjih.
Da zaključim, jer ovo napisano je gore od linka. Nikada za čovečanstvo nisu bili kritični izvori energije, kritično je đubre koje eksploatacija ostavlja za sobom. I, pakovanje. Nikada nismo uspeli da spakujemo energiju kako treba, a bezmalo ni da je transportujemo. Isto kao i proizvodnja sira.
Da, zdravo razmišljanje.
Druga moja "briga" ili bar tema za razmišljanje u vezi sa solarnom energijom (pre svega njom) je ta decentralizacija energetske mreže koja se često pominje kada pričamo o solarnoj energiji. Nebrojena sam svedočanstva pročitao po internetu gde ljudi kažu kako su ugradili solarne ploče i sada su praktično nezavisni od "klasične" energetske industrije, ili nezavisni u velikoj meri. Naravno, u regionima na palneti gde je to moguće. Vrlo je zanimljivo razmišljati šta kada dovljno veliki broj ljudi postane ovako energetski nezavisan od centralizovanih sistema i kakve će to posledice imati na strukturu društva.
To je najtačniji stav o energiji koji ćeš ikada dobiti.
Lepo je kad razmišljaš o fragmentaciji solarnih izvora energije. I posledicama. Čak je i vrlo zgodan SF motiv. Mogu da vidim priču. U začetku, moglo bi se razmišljati o varijanti da je solarna decentarlizacija po prirodi izrazito antiglobalistička. Ako imamo individualno koj će nam globalno? To svakako znači rat i apokalipsu. No, da počnemo od početka.
Neko globalno mora da proizvodi solarne ćelije za individualno, zar ne? Niko nam nije izračunao koliko zapravo energije potroši izrada jednog solarnog bloka. Energetski povezano društvo omogućava proizvodnju solarnih blokova. Fragmentirano se vraća ka čekiću i nakovnju.
Bolje pitanje je proračun da nam za ukupne potrebe energije na Zemlji treba komadić Sahare. E, tu se javlja problem transporta i distribucije, a odatle proističe kontrola. Samodovoljna domaćinstva imaju budućnost, kakav sam, nedavno sam predlagao da postavimo takav projekat, kombinovan sa vetrenom energijom i realizujemo ga na pilot nivou, da ne pričam sad gde. Kako ti voliš da napišeš, naravno da sam ostao usamljen. Da projektujem efikasan prostorno-vremenski portal niko mi ne bi verovao.
Još samo o Elonu Musku. Taj je namlatio pare i može da ostvari svoje zamisli. Stavljam kintu da hoće, ali se stalno pitam zašto baš on.
https://l.facebook.com/l.php?u=http%3A%2F%2Fwww.npr.org%2Fsections%2Fthetwo-way%2F2017%2F10%2F25%2F560045944%2Ftesla-turns-power-back-on-at-childrens-hospital-in-puerto-rico%3Fex_cid%3DSigDig&h=ATOtFTpjOoiFzdZZdr2qVCCzNly0V2yl1S-xgAo9yKmRcZD7jE7V00NKPpPIPTSjHSkF9dtTHcxYLFrC1QnmUKfGpOoa3FHjHLPuOoZ3Jl2vQ-I_GABpUF9M3-C5B7g3-nu3h8-dk2_H7mvdie_EBh_pMhQM6VRwzEuSBSPXcR6sv5LkEgKyvi8vMkcDbv4dcyfdJeywQNsgwg27TBxRKabN-07t5KvM3po3D5R7Mux2QcYewAUyTkGqk4tGuMACoMbT89OspE4PNTAd2Yw83AEEYZav_gK5
E, kad ja ne znam ko Uroš.
Ovih dana smo dosta čitali o "fuziji kvarkova" kao novom potencijalnom izvoru obilne energije, pa evo ukratko kako to radi i zašto još dugo nećemo moći da ga koristimo :lol: :
"Quark Fusion" Produces Eight Times More Energy Than Nuclear Fusion (https://futurism.com/quark-fusion-produces-eight-times-energy-nuclear-fusion/)
Nećemo da kvarkujemo?
Za sada ne, vele u radu da kvarkovi opstanu toliko kratko da ne može da se izazove lančana reakcija, dakle, neka veća emisija energije je nedostižna. Ali s druge strane, to znači da (opet za sada) ne moramo da se brinemo zbog "kvark bombi".
Ono šta treba da brine je ko finansira istraživanja. Moje iskustvo je takvo.
Tesla completes its giant Australian Powerpack battery on time (https://www.engadget.com/2017/11/23/tesla-australia-powerpack-100-day-bet/)
Znači da ćemo uskoro imati mušterije za litijum.
Magnesium batteries could be safer and more efficient than lithium (https://www.engadget.com/2017/12/01/magnesium-batteries-safer-more-efficient-than-lithium/)
Originalni rad:
High magnesium mobility in ternary spinel chalcogenides (https://www.nature.com/articles/s41467-017-01772-1)
Moglo bi da bidne, ali ne mora da znači.
China Has Launched the World's First All-Electric Cargo Ship (https://futurism.com/china-launched-worlds-first-all-electric-cargo-ship/)
...naravno, koristi se za transport uglja :lol: :lol: :lol:
Kad smo već kod Kine, planiraju dva reaktora u pustinji Gobi sa torijumskim gorivom:
China hopes cold war nuclear energy tech will power warships, drones (http://www.scmp.com/news/china/society/article/2122977/china-hopes-cold-war-nuclear-energy-tech-will-power-warships)
China is building solar roadways – 'transparent concrete' atop solar cells that charge driving cars (https://electrek.co/2017/12/21/china-solar-roadways-transparent-concrete-solar-cells-charge-cars/)
Problem je habanje podloge. Ne bi bilo gubljenja solarnog kapaciteta jedino kad bi postavili nekakvu dijamantsku zaštitu. Mislim da solarni putevi ne isplate.
Consumers in Germany were paid to use electricity this holiday season (https://inhabitat.com/consumers-in-germany-were-paid-to-use-electricity-this-holiday-season/)
Mislim da je ovo zanimljiviji link, što se tiče plaćanja struje u Nemačkoj:
https://www.cleanenergywire.org/factsheets/what-german-households-pay-power (https://www.cleanenergywire.org/factsheets/what-german-households-pay-power)
Pa uporedi sa ovim...
https://www.blic.rs/najbolji-ostaju/placamo-najjeftiniju-struju-kilovat-cas-u-srbiji-pet-puta-jeftiniji-nego-u-danskoj/cqdjq7y (https://www.blic.rs/najbolji-ostaju/placamo-najjeftiniju-struju-kilovat-cas-u-srbiji-pet-puta-jeftiniji-nego-u-danskoj/cqdjq7y)
Nemoj zamajavati široke narodne mase. Ima ko je za to zadužen...
Znam, mislim da si ti taj link već jednom negde ovde kačio. Opet zanimljivo!
Ne bih da vam kvarim zabavu, niti da vas prepadam, pa ću da vam ispričam jednu zanimljivu priču.
Jedne zime gospodnje, tačnije 16-20 decembra, pre oko 30 godina, bio sam u stručnoj poseti švedskom pandanu VTI u Umeo, nekoliko milimetara ispod polarnog kruga. Dah mi se smrzo kad sam na aerodromu hteo da viknem "Hej!" odboru za doček. Pošto ovo nije saga o snegu i ledu, da pređem na fakta. U razgovorima sam pokušao da iznesem jednu našu "ideju" o kolektivnoj protivhemijskoj zaštiti na nivou pojedinačnog domaćinstva. Jedno vreme su me gledali zbunjeno, a onda se kolega od prekoputa stola oglasio:
"Ali, kolega, šta mislite koliko bismo mi ovde energije trošili, da nam zidovi već nisu nepropusni, a prozori dobro dihtuju?"
Kasnije sam se mnogo blesavo osećao zbog tog glupog pitanja. Mi arčimo energiju. Zato sam, kod kuće, prvo promenio prozore, a zatim i ojačao izanđalu fasadu, osim strane ka ulici, jer se sa komšijama nisam uspeo dogovoriti za zajednički projekat. Kod nas je sada zimi toplo, osim kad me žena prisili na provetravanje. Tu priče o potrošnji kiseonika i nivou C02 ne pomažu.
Izvinite ako sam bio opširan i nerazumljiv, ali isto važi i za vaše linkove. 8)
Ne, potpuno si u temi i u pravu. Iz identičnih razloga smo mi, kad smo radili rekonstrukciju kuće potrošili proporcionalno mnogo na izolaciju u zidovima i kvalitetne prozore, a to nam se poslednju deceniju vraća kroz skromne račune za utrošenu energiju.
Fala Bogu da sam jednom razumljiv. Moja priča krije da nama ne nedostaje prava nego razuma. Možda je vidljivo kad se pogledaju sela u Vojvodini i južno od Save i Dunava. Tamo ušorena, a južno razbacana da bi svako imao svoju ogradu. U Sloveniji nisam video ograde. Možda je Austrougarska prvo uvela red, da bi nastalo malo pameti, a možda još strepimo od Turaka, hajduka i komšija. Juče gledam na TV preko dvadeset kafana u glavnoj ulici Gruže. Kafane pune, tamo se družimo, a kuće svaka ima svoju busiju. Mnogo je složenije nego što zamišljamo.
Кад смо већ код Немачке, подсетимо се ове вести...
Zbog neplaćenih računa bez struje 600.000 domaćinstava u Nemačkoj
https://www.blic.rs/vesti/svet/zbog-neplacenih-racuna-bez-struje-600000-domacinstava-u-nemackoj/5ve48s2
А кад смо код енергетике (и електрике) сутра:
Mogu li ,,svijetleće" biljke zamijeniti uličnu rasvjetu u skoroj budućnosti?
Istraživači sa MIT-a pokušavaju smanjiti našu ovisnost o umjetnoj rasvjeti s novim rješenjima. Jedno od takvih su biljke koje svijetle u mraku.
Stručnjaci sad imaju nakanu smanjiti korištenje električne struje i konvencionalne ulične rasvjete koje bi jednog dana, nadaju se, mogle zamijeniti biljke koje svijetle u mraku. Pritom se najviše spominje drveće.
,,Vizija je da se stvori biljka koja će funkcionirati kao stolna svjetiljka – svjetiljka koju ne morate ukopčati. Svjetlost će se u konačnici stvarati samim metabolizmom biljke," objašnjava autor istraživanja, Michael Strano.
http://tribun.hr/mogu-li-svijetlece-biljke-zamijeniti-ulicnu-rasvjetu-skoroj-buducnosti/
Najbolje je da ukrstimo svice i čavke.
Nearly all new US electricity capacity was renewable in 2017 (https://www.engadget.com/2018/01/15/nearly-all-new-us-electricity-capacity-was-renewable-in-2017/)
A da vidimo koji postotak proizvedene energije u SAD čine renewables? :)
Pa da uporedimo sa time koliko kod nas čine renewables... da vidimo koliko smo zaostali...
Quote from: Mica Milovanovic on 16-01-2018, 09:09:36
A da vidimo koji postotak proizvedene energije u SAD čine renewables? :)
Oko 10% proizvodnje i 15% potrošenje u 2016. godini. Pretpostavljam da još nemaju podatke za 2017. godinu pošto se i ovo vodi kao "preliminarni podaci".
https://www.eia.gov/tools/faqs/faq.php?id=92&t=4 (https://www.eia.gov/tools/faqs/faq.php?id=92&t=4)
Srbija je, verovali ili ne, ispred Amerike po ovom parametru, barem po podacima za 2013. godinu, OIE su učestvovali u proizvodnji sa 16%:
https://www.energetskiportal.rs/ministarstvo/ (https://www.energetskiportal.rs/ministarstvo/)
Falš su ti podaci za Srbiju. Kao i obično, veruješ internetu, a ne zdravoj pameti.
Samo učešće hidroenegije u ukupnoj proizvodnji električne energije je oko 30%, u zavisnosti od godine.
Evo ti izveštaj EPS-a za 2016. godnu.
http://eps.rs/SiteAssets/Lists/Sitemap/EditForm/izvestajioposlovanju/tehnickiizvestaji/TEH_Godisnjak2016_web_.pdf (http://eps.rs/SiteAssets/Lists/Sitemap/EditForm/izvestajioposlovanju/tehnickiizvestaji/TEH_Godisnjak2016_web_.pdf)
Od ukupno 36.461 GWh koliko je proizvedeno u EPS-u 2016 11.355 je proizvedeno u HE ili nešto preko 31%. Sve ostalo je praktično zanemarljivo - ima nešto vetrogeneratora, šačica solarnih, poneka mala HE i slično...
Iznenađenje... :)
Pa, nije iznenađenje toliko, nisam imao vremena da nešto mnogo tražim, ipak sam na poslu i sve je to na brzinu bilo.
Ali svakako je dobro videti da smo ispred Amera :| :| :| :|
Ne samo da smo iznad, već smo dva koplja iznad... xrofl
Iznad smo po procentu obnovljivih izvora zato što smo ispod po potrošnji po glavi stanovnika (trošimo tri puta manje energije). Da trošimo koliko i oni ne bi mogle sve reke u Srbiji da nas pokrpe.
Ja ću ipak verovati Mići.
California's last nuclear plant to close after unanimous vote by regulators (http://www.sfchronicle.com/bayarea/article/California-regulators-vote-unanimously-to-close-12491203.php)
QuoteIznad smo po procentu obnovljivih izvora zato što smo ispod po potrošnji po glavi stanovnika (trošimo tri puta manje energije). Da trošimo koliko i oni ne bi mogle sve reke u Srbiji da nas pokrpe.
Pa na šta da trošimo energiju kad je industrijska proizvodnja na ispod 50% od osamdesetih. A Tito nam nije valjao...
Pa meni nije.
Izgradili komunjare staklaru usred grada Zajecara, i jos 4 fabrike...
Otrov, dim, satrlo zelenilo, korov nije mogo raste.
U Boru jos gore, i dan danas nemres disat...
Sad je vec 30 godina sve zatvoreno, sve go kokuz, najjeftiniji taxi u Srbiji, Zajecarsko pivo najbolje i nigde para!
Niko para nema, svi zive od ljubavi!
Seljacima u okolnim selima ne smeju ni da seku struju kad ne plate, cekaju ih sas dvocevku ;)
Stoka komunistička. Terali ljude da rade, a 70% proizvodnje izvozili u inostranstvo. Da neki kapitalisti piju iz naših čaša.
I krenuli sa potapaju sela da bi napravili branu, kobajagi da se snabdevate vodom.
Umesto da, kao što svaki pošteni seljak ili građanin zna, zavate vodu iz Timoka (Belog ili Crnog, šta već).
Uostalom, kao što kažeš, šta fali narodu da pije pivo...
Stvarno. Eh, sad bi Ugly lepo čuvao ovce i bio, hvala Bogu, nepismen, a mi mirni.
Pa ja i jesam Torlak sa caletove strane!!!
Al' Bosanac sa kevine, jeb'ga...il' bese Ercegovac, ne znam de mu dodje Konjic i prezime Lojpur....
Enivej,
da sam cuvo ovce, ne bi po citav dan radio da iskolujem jedno dete, nego bi imo najmanje fudbalski tim, (treba neko sisa sve te ovce, necu valjda sam)
Jeo bi zdravu hranu, pio vrhunsku rakiju i svako vece imo udrvljen kurac da se zena zanima.
Zivio bi stodvajs godina, siptara ovde ne bi bilo, a ni na Kosovu, Hrvati bi nam bili bratsko pleme, a Germani,Franki, i ostali Romani bi se klali izmedju sebe koji ce da nam se prvi uslihta!
Eto sta bi bilo!
Imate Titica i danas na vlasti, nadam se da uzivate!
Gradeci vas Beograd na vodi!
I to za mene, jer cu verovatno doci da zivim tamo gde je srce Srbije!!!
Zaboravljaš da su prvu fabriku stakla u Zaječaru napravili još za Kralja, a da je Tito to malko razvijo i zaposlijo 600 ljudi samo u Zaječaru, a jedno 3000 ljudi u Kristalovim filijalama po Srbiji. Čisto da znaš, ako te neko pita...
I izgradio te proklete hidrocentrale da imaš zelenu energiju - poslednja je završena još dok je bila Jugoslavija 1989.
Od tada nijedna prava hidrocentrala nije napravljena.
Da ti nije Tite, moro bi da crtaš po danu.
Znaci i tvoj Tito dosao na gotovo, kad je svrgo kralja.
Sto nije osto u svom zagorju ili kumrovcu, ili makar Zagrebu?
Moj deda se bavio duborezom i rezbario balvane, samo perorez za alatku, a i freske i ikone su starije od tvog Tita i struje.
Ne sekiraj se, snasao bi se ja.
Nego, mozemo nagadjati unedogled, komunisti su u mom zivotu imali najvecu ulogu time sto su mi dokazali da Bog postoji, hvala Bogu na njima,
nase je da ucimo iz proslosti i ne zabrljamo buducnost.
E sad, svako sam bira odakle ce da pocne da uci.
Vidim vi mnogi odavde krenuli od Marksa,Engelsa, Frojda, Tita...
Ja sam pogledao malo dalje u proslost, da naucim nesto vise...
E, da izvinjavam za staklaru nisam odgovorio,
Jes Pasicev sinak otvaro staklaru,
ali ono zlo koje se izvozilo u beli svet su komunisti napravili a to je Kristal.
Proizvesti taj kristal nije trebalo, staklo ko staklo....
..a i vidim ovajdili se sad svi od tolikog kristala.
Ali Pravosljavlje je vecito, prezivelo je i vaseg Tita.
Ovi sad Titici ce verovatno da satru sve moje ovce,
pa cete svi morati da trpite nas ovakve.
Blago nama... Al' bar ćemo se duhovno razvijati...
A sta nam je ostalo?
Sve ostalo smo ili razjebali ili idemo ka tome....
...misliiim,,,,fakultetske diplome...?
Doktori nauka? Nikad lakse...
pitam se ko ce za par godina da operise sa tim silnim elektranama...
Izgleda da cu da gomilam svece i krenem da kupujem peroreze.....
E, deda nije izrezbario sve balvane.
Nekad su izvozili čaše, a Beli je obećo saćemo wc šolje da izvozimo!
Renewable energy set to be cheaper than fossil fuels by 2020, according to new report (http://www.independent.co.uk/environment/renewable-energy-cheaper-fossil-fuels-2020-uk-green-climate-change-global-warming-report-irea-a8160051.html)
Doduše, verovatno ne baš svuda na svetu, jelte :lol:
Quote from: Meho Krljic on 18-01-2018, 12:15:10
Renewable energy set to be cheaper than fossil fuels by 2020, according to new report (http://www.independent.co.uk/environment/renewable-energy-cheaper-fossil-fuels-2020-uk-green-climate-change-global-warming-report-irea-a8160051.html)
Doduše, verovatno ne baš svuda na svetu, jelte :lol:
Jeste i sada, ali se ne dopada onima koji su već u biznisu sa fosilnim gorivima.
Mada ima i nekih renewables koji su i dalje skupi, a forsiraju se...
Quote from: Mica Milovanovic on 18-01-2018, 12:49:27
Mada ima i nekih renewables koji su i dalje skupi, a forsiraju se...
Fitnes, na primer?
Tesla's giant battery in Australia made around $1 million in just a few days (https://electrek.co/2018/01/23/tesla-giant-battery-australia-1-million/)
Trump reportedly seeks massive budget cuts to clean energy research (https://www.engadget.com/2018/01/31/trump-seeks-budget-cuts-clean-energy-research/)
Tesla To Construct Virtual Solar Power Plant Using 50,000 Homes In South Australia (https://cleantechnica.com/2018/02/04/tesla-construct-virtual-solar-power-plant-using-50000-homes-south-australia/)
After rising for 100 years, electricity demand is flat. Utilities are freaking out. (https://www.vox.com/energy-and-environment/2018/2/27/17052488/electricity-demand-utilities)
'Proton' battery uses cheap carbon instead of lithium (https://www.engadget.com/2018/03/09/proton-battery-carbon-water-no-lithium/)
Nuclear fusion on brink of being realised, say MIT scientists (https://www.theguardian.com/environment/2018/mar/09/nuclear-fusion-on-brink-of-being-realised-say-mit-scientists)
NASA Tests New Nuclear Reactor For Future Space Travelers (https://www.npr.org/sections/thetwo-way/2018/05/03/608137119/nasa-tests-new-nuclear-reactor-for-future-space-travelers)
Trump Gives Merkel An Ultimatum: Drop Russian Gas Pipeline Or Trade War Begins (http://peakoil.com/publicpolicy/trump-gives-merkel-an-ultimatum-drop-russian-gas-pipeline-or-trade-war-begins)
Companies are using California homes as batteries to power the grid (https://qz.com/1288623/solar-energy-companies-are-using-california-homes-as-batteries-to-power-the-grid/)
Rusi u akciji:
Researchers Have Invented an Awesome And Scary Nuclear Battery Pack (https://www.sciencealert.com/high-power-nickel-63-betavoltaic-device-shrinks-pacemaker-radioactive-batteries?perpetual=yes&limitstart=1)
Rusi udaraju na nuklearno, MIT na solarno:
Solar Cell Breakthrough Could Make Panels Far More Efficient (https://www.inverse.com/article/45587-thinfilm-solar-tech-slows-down-light).
Mi sa pejsmejkerima i oni sa brojnim satelitima prvi link čitaju ozbiljno. Znamo i zašto. Plus, Rusi dijamantskog praha imaju i za bacanje. Zamislite satelite bez velike površine solarnih ploča koje se lako oštete i posle padaju na glave. Kao kolibri i albatros.
Nuclear Power Won't Survive Without A Government Handout (https://fivethirtyeight.com/features/nuclear-power-wont-survive-without-a-government-handout/)
Report: World trending to hit 50% renewables, 11% coal by 2050 (https://arstechnica.com/science/2018/06/report-world-trending-to-hit-50-renewables-11-coal-by-2050/)
Solar panels have gotten thinner than a human hair. Soon they'll be everywhere. (https://www.vox.com/2016/6/23/11998908/ultra-thin-solar-cells)
Ireland becomes world's first country to divest from fossil fuels (https://www.theguardian.com/environment/2018/jul/12/ireland-becomes-worlds-first-country-to-divest-from-fossil-fuels)
Imao sam kućnu raspravu o raspoloživim i nepoželjnim i o obnovljivim energetskim izvorima. Mislim da sam uspeo da objasnim u kome grmu leži zec. Ako sam uspeo da objasnim. Najpre smo divanili o Ilonu Masku i solarnoj energiji. Jesu njegove solarne ploče i solarni crep fenomenalni izvori, ali će vremenom račun da ispostavi abrazija, odnosno prirodna erozija, jer kad nema sunca ima kiše, a sa kišom, pored žaba ponekad pada i pesak iz Sahare. Na drugoj strani, video sam i proračune da samo komadić Sahare može da zadovolji energetske potrebe čitave Zemlje. Naravno, kao i u bilo čemu drugom postoji i problem. Neću pominjati da će opet Arapima da se zalomi premija, nego da je muka u skladištenju i distribuciji, a o naplati eksploatacije takvog sistema da ne govorim.
Posebna je priča o vetrenoj energiji. Samo bi košava mogla da izduva pola potreba Srbije. Međutim, priča je bila o istoj toj energiji u Oklahomi, mogli bi čudo da izvuku iz Tornado Alley, ali muku muče i sa gasom i naftom za koje nikako da reše transport, pa se proizvođači bore protim vetra. Negde iz rukava su izvukli i argument da će transportni sistem vetrene energije da ugrozi satelitsku kontrolu poljoprivrednika nad uzgojem svojih zasada! Sad su i seljaci protiv.
Ipak, ja bih istakao da obnovljive energije ima na pretek, ali da se sezonsko kolebanje tih izvora kosi sa prednošću stabilnog sistema transporta hidro i termo energije u svetu. Za uspešnu zamenu trebaće nam sasvim novi sistem distribucije energije.
Evo nečeg što se nadovezuje na ovaj Skalopov post:
The world's largest solar farm rises in the remote Egyptian desert (http://www.latimes.com/world/middleeast/la-fg-egypt-green-power-20180730-story.html#)
Ista tema, al na nivou predviđanja:
Climate model shows large-scale wind and solar farms in the Sahara increase rain and vegetation (http://science.sciencemag.org/content/361/6406/1019)
Dok forum ZS ponovo ne potone u gomilu gluposti, nešto sasvim drugačije.
Sasvim je zgodan zaključak klimatskog modela da će wind and solar farms uvećati šansu za kišu i porast vegetacije u Sahari. Ne bih sada o tome da je više uradio jedan domorodac sa oboda Sahare koji 30 godina sadi drveće i gura pustinju unazad. Mnogo zgodnija je jedna moja nenapisana priča iz vremena kad se sve kucalo na mašini. A svideće se i Mići.
Tih godina je Energoprojekt ugovorio sa Gadafijem istraživanje mogućnosti eksloatacije voda koje 30.000 godina imaju trasu od kišnih šuma Konga. Nisam siguran da je Gadafi imao ideju da revitalizuje pistinju, nego pre da iskoristi taj potencijal na brzaka.
I tako, izbušili naši niz piezobunara i prema ugovoru vršili nadzor četiri puta godišnje. Sve je bilo u redu dok neki javaš ekspert nije došao na ideju da dva puta ne meri, nego da vrednosti ekstrapoliše. Naravno, Gadafi ih ulovio i otkazao ugovor bez plaćanja ugovorenih suma novca. Uvek smo bili sposobni da sami sebe zajebemo.
No, nastranu istinita priča, ideja moje nenapisane priče je bila da se od te vode podigne sistem veštačkih oaza i tako smanji toplotni pritisak na pustinju i dozovu kiše. I tako, sad jedino domorodac sadi šumu, a klimatolozi procenjuju da bi efekat smanjenja osunčane površine pustinje izazvao isti efekat. :x
First hydrogen-powered train hits the tracks in Germany (https://arstechnica.com/science/2018/09/first-hydrogen-powered-train-hits-the-tracks-in-germany/)
Bližimo se torijumskim nuklearkama..
https://youtu.be/bcjYwxrUERg
China wants to put a solar farm in space by 2025 (https://www.engadget.com/2019/02/18/china-solar-farm-power-station-space-2025/?yptr=yahoo)
Quote
According to China's state-backed Science and Technology Daily, Chinese scientists plan to build and launch small power stations into the stratosphere between 2021 and 2025, upgrading to a megawatt-level station in 2030 and a gigawatt-level facility high above the earth before 2050. Without atmospheric interference or night-time loss of sunlight, these space-based solar farms could provide an inexhaustible source of clean energy. The China Academy of Space Technology Corporation claims such a set-up could "reliably supply energy 99 per cent of the time, at six-times the intensity" of solar installations on earth.
China's proposal suggests converting solar energy into electricity in space, before beaming back to Earth using a microwave or laser and feeding into the grid via a ground receiving system.
Elon Musk says the tech is 'mind-bogglingly stupid,' but hydrogen cars may yet threaten Tesla (https://www.cnbc.com/2019/02/21/musk-calls-hydrogen-fuel-cells-stupid-but-tech-may-threaten-tesla.html)
UK generates usable electricity from americium (http://www.world-nuclear-news.org/Articles/UK-generates-usable-electricity-from-americium)
Three Mile Island Nuclear Plant To Close, Latest Symbol Of Struggling Industry (https://www.npr.org/2019/05/08/721514875/three-mile-island-nuclear-plant-to-close-latest-symbol-of-struggling-industry)
Quote
The company says the plant has been losing money for years. The nuclear industry generally has struggled (https://www.npr.org/2017/05/16/528657268/struggling-nuclear-industry-lobbies-state-governments-for-help) to compete with less expensive electricity generated from natural gas and renewable energy.
Britain passes one week without coal power for first time since 1882 (https://www.theguardian.com/environment/2019/may/08/britain-passes-1-week-without-coal-power-for-first-time-since-1882)
Od ovoga za sada nema ništa, ali zamislimo a Google u neko dogledno vreme uspe i razvije postupak za hladnu fuziju. Kompanija koja u ovom trenutku kontroliše ogroman deo svetskog protoka informacija bi držala patent na najvažne dostignuće u energetici u ovom veku...
Google revives controversial cold-fusion experiments (https://www.nature.com/articles/d41586-019-01683-9)
Creative thinking: Researchers propose solar methanol island using ocean CO₂ (https://arstechnica.com/science/2019/06/creative-thinking-researchers-propose-solar-methanol-island-using-ocean-co%E2%82%82/)
Scottish Power to build vast battery to improve wind energy supply (https://www.theguardian.com/environment/2019/jun/10/scottish-power-build-vast-battery-improve-wind-energy)
US report finds sky is the limit for geothermal energy beneath us (https://arstechnica.com/science/2019/06/report-geothermal-could-power-up-to-16-of-us-grid-by-2050/)
Siemens Gamesa Unveils World First Electrothermal Energy Storage System (https://cleantechnica.com/2019/06/17/siemens-gamesa-unveils-world-first-electrothermal-energy-storage-system/)
Safer Nuclear Reactors Are on the Way (https://www.scientificamerican.com/article/safer-nuclear-reactors-are-on-the-way/)
QuoteManufacturers such as Westinghouse Electric Company and Framatome are hastening development of so-called accident-tolerant fuels that are less likely to overheat—and if they do, will produce very little or no hydrogen. In some of the variations, the zirconium cladding is coated to minimize reactions. In others, zirconium and even the uranium dioxide are replaced with different materials. The new configurations could be slipped into existing reactors with little modification, so they could be phased in during the 2020s.
A onda ima i ovakvih ideja:
This former playwright aims to turn solar and wind power into gasoline (https://www.sciencemag.org/news/2019/07/former-playwright-aims-turn-solar-and-wind-power-gasoline)
QuoteSynthesizing gasoline, instead of refining it from oil, isn't a new idea. German chemists in the 1920s discovered they could turn coal into carbon monoxide (CO) and hydrogen—a combination known as synthesis gas. Catalysts, along with heat and pressure, could then transform synthesis gas into gasoline and other liquid hydrocarbons.
But McGinnis's setup requires no heat, pressure, or coal. It uses only air, water, and electricity, which can come from the sun or wind. And with those renewable resources becoming ever cheaper, he's betting he can deliver gasoline more economically—and far more cleanly—than companies that must find oil, drill for it, ship it, and refine it.
Several other startups and academic labs are pursuing the same dream. "There has been a lot of progress in the last few years" in turning CO2 into more-complex compounds, says Peidong Yang, a pioneer in the field at the University of California, Berkeley.
Yet many of those efforts have stumbled over the expensive, energy-intensive steps needed to separate the hydrocarbons from the water they are produced in. Prometheus relies instead on a proprietary carbon nanotube membrane sieve that it says readily parts the hydrocarbons from water. "If they indeed have a low-energy separation process, that solves a big problem," Yang says.
Mića može ovde da se oglasi sa komentarom na verodostojnost i slično, ako ima volje:
Kurije de Balkan: U Srbiji planirano više od 850 MHE, ugrožavaju 1000 km reka (http://rs.n1info.com/Vesti/a498869/Kurije-de-Balkan-U-Srbiji-planirano-vise-od-850-MHE-ugrozavaju-1000-km-reka.html)
Škotima ne ide baš sve na ruku, ali vetar, toga barem imaju:
Scotland just produced enough wind energy to power all its homes twice over (https://www.cnbc.com/2019/07/15/scotland-has-produced-enough-wind-energy-to-power-its-homes-twice-over.html)
Berkeley becomes first U.S. city to ban natural gas in new homes (https://www.sfchronicle.com/bayarea/article/Berkeley-becomes-first-U-S-city-to-ban-natural-14102242.php?psid=dcARy)
Quote
"It's an enormous issue," Harrison told The Chronicle. "We need to really tackle this. When we think about pollution and climate-change issues, we tend to think about factories and cars, but all buildings are producing greenhouse gas."
Startup Aims to Tackle Grid Storage Problem With New Porous Silicon Battery (https://spectrum.ieee.org/energywise/energy/the-smarter-grid/startup-aims-to-tackle-grid-storage-problem-with-serverracksized-battery)
Quote
The idea behind the XNRGI battery is an unconventional one, depicted in a two-minute explainer video (https://www.youtube.com/watch?v=1lJERwQg2o0) and five-page white paper (https://xnrgi.com/wp-content/uploads/2018/11/XNRGI-Consumer-White-Paper.pdf) [PDF] from the company. The etched silicon wafers, which are later coated with lithium and other metals to form anodes and cathodes, contain forests of micro-sized batteries on each silicon wafer. Think of each "micro-battery" as an elongated hollow box with a 20 x 20 micron footprint. The cathode and anode are the top and bottom half of that hollow box, separated by some distance from each other. No individual micro-battery, Hallquist says, contains enough charge current to form substantial dendrites or other structures that could arc the positive and negative ends of the battery.
And each 12-inch silicon wafer consists of some 36 million of these vertical "micro-batteries" machined into the wafer's surface. Which, as the explainer video argues, decreases the charge time of the macro-battery (made up of many micro-batteries) as well as the manufacturing cost of the technology, as it's based on already scaled-up silicon fabrication processes used in computer chip manufacturing today.
Ko će pre da uništi reke Zapadnog Balkana? (https://www.dw.com/sr/ko-%C4%87e-pre-da-uni%C5%A1ti-reke-zapadnog-balkana/a-49754280)
Quote
Evropska komisija zato smatra da bi regionalni projekti na Zapadnom Balkanu trebalo da se fokusiraju na obnavljanje već postojećih velikih hidroelektrana, a da se samo u ograničenom broju slučajeva razmotre velike grinfild opcije (investiranje u potpuno novu kooji tek treba da se preuređuje, bez korišćenja postojeće infrastrukture).
Quelle surprise!!!!!!
Three Years Later, the French Solar Road Is a Total Flop (https://www.popularmechanics.com/technology/infrastructure/a28720252/french-solar-road-failure/)
QuoteIt's too noisy, falling apart, and doesn't even collect enough solar energy.
Thunderf00t je od samog početka (https://youtu.be/H901KdXgHs4) pokazao da to ne može da radi. Povremeno bi se vratio na tu temu, sa sve više podsmeha, a sve manje strpljenja.
Ne znam ni šta da kažem na ovako uobličen naslov i tekst:
Solar Power Is Now as Inexpensive as Grid Electricity in China (https://spectrum.ieee.org/energywise/energy/renewables/china-gridparity)
Mislim, sve to implicira da su Kinezi grdne svinje ako kolko danas popodne ne pozatvaraju sve elektrane na ugalj itd. Al dobro, bias na stranu, ovo je možda značajan podatak...
Tesla battery researcher unveils new cell that could last 1 million miles in 'robot taxis' (https://electrek.co/2019/09/07/tesla-battery-cell-last-1-million-miles-robot-taxis/)
Generating Light from Darkness (https://www.cell.com/joule/fulltext/S2542-4351(19)30412-X?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS254243511930412X%3Fshowall%3Dtrue)
Quote
Summary
A large fraction of the world's population still lacks access to electricity, particularly at night when photovoltaic systems no longer operate. The ability to generate electricity at night could be a fundamentally enabling capability for a wide range of applications, including lighting and low-power sensors. Here, we demonstrate a low-cost strategy to harness the cold of space through radiative cooling to generate electricity with an off-the-shelf thermoelectric generator. Unlike traditional thermoelectric generators, our device couples the cold side of the thermoelectric module to a sky-facing surface that radiates heat to the cold of space and has its warm side heated by the surrounding air, enabling electricity generation at night. We experimentally demonstrate 25 mW/m2 of power generation and validate a model that accurately captures the device's performance. Further, we show that the device can directly power a light emitting diode, thereby generating light from the darkness of space itself.
New Research Promises Electric Car Batteries That Last For a Million Miles (https://gizmodo.com/new-research-promises-electric-car-batteries-that-last-1838357663)
QuoteIn a paper (http://jes.ecsdl.org/content/166/13/A3031) published in the The Journal of the Electrochemical Society earlier this month (http://jes.ecsdl.org/content/166/13/A3031), battery researchers from Halifax, Nova Scotia's Dalhousie University describe a new lithium-ion battery that could potentially power an electric vehicle for over one million miles and over 4,000 charging cycles while only losing about 10 percent of its charging capacity (and vehicle range) as it reaches the end of its lifespan. Most drivers upgrade their rides well before the odometer rolls over to one million, but the new battery tech could be especially useful in vehicles that are on the road around the clock like taxis, shuttles, and even delivery trucks.
Problem sa vodonikom kao gorivom je (pored toga što je zeznut za pakovanje) što su katalizatori koji se koriste za njegovu proizvodnju skupi zbog platine. E, sad:
Ditching Platinum for the Ocean Could Make Hydrogen Cheap (https://www.popularmechanics.com/science/energy/a29339603/hydrogen-seawater-source/)
The Navy's Patent for a Compact Nuclear Fusion Reactor Is Wild (https://www.popularmechanics.com/science/energy/a29427713/navy-compact-fusion-reactor/)
UK Man Invents Aluminum-Air Battery In His Garage (https://cleantechnica.com/2019/10/20/uk-man-invents-aluminum-air-battery-in-his-garage/)
QuoteImagine, if you will, a lightweight, inexpensive power source with 9 times the energy density of a lithium-ion battery. Got your mind wrapped around that concept? Now imagine that power source uses recycled aluminum, one of the most abundant metals on Earth, and an electrolyte so nontoxic you can drink it.
Researchers transmit energy with laser in 'historic' power-beaming demonstration (https://www.nrl.navy.mil/news/releases/researchers-transmit-energy-laser-power-beaming-demonstration)
Naravno, za sada su gubici poveliki ali ovo je ipak impresivno.
New Battery Design Can Charge an Electric Car in 10 Minutes (https://www.vice.com/en_us/article/7x5jwd/new-battery-design-can-charge-an-electric-car-in-10-minutes)
An Energy Breakthrough Could Store Solar Power for Decades (https://www.bloomberg.com/news/articles/2019-11-04/moth-poulsen-s-energy-trapping-molecule-could-solve-solar-storage)
QuoteScientists at Chalmers University of Technology (https://www.bloomberg.com/quote/1757823D:SS) in Gothenburg have figured out how to harness the energy and keep it in reserve so it can be released on demand in the form of heat—even decades after it was captured. The innovations include an energy-trapping molecule, a storage system that promises to outperform traditional batteries, at least when it comes to heating, and an energy-storing laminate coating that can be applied to windows and textiles. The breakthroughs, from a team led by researcher Kasper Moth-Poulsen (https://www.chalmers.se/en/staff/Pages/kasper-moth-poulsen.aspx), have garnered praise within the scientific community. Now comes the real test: whether Moth-Poulsen can get investors to back his technology and take it to market.
BOTTOM LINE - Effectively harnessing the sun's rays is key to addressing climate change. Swedish researchers say their system can help commercialize solar energy.
Evo ga još jedan kao ja, što se loži na torijum:
https://youtu.be/biToH42YZZ4
Secretive energy startup backed by Bill Gates achieves solar breakthrough (https://edition.cnn.com/2019/11/19/business/heliogen-solar-energy-bill-gates/index.html)
Naravno, reči poput "secretive", "startup", "bill", "gates" i "breakthrough" sugerišu da ovo sve treba konzumirati uz dosta soli, ali evo, da zabeležimo:
QuoteHeliogen, a clean energy company that emerged from stealth mode on Tuesday, said it has discovered a way to use artificial intelligence and a field of mirrors to reflect so much sunlight that it generates extreme heat above 1,000 degrees Celsius.
Essentially, Heliogen created a solar oven — one capable of reaching temperatures that are roughly a quarter of what you'd find on the surface of the sun.
The breakthrough means that, for the first time, concentrated solar energy can be used to create the extreme heat required to make cement, steel, glass and other industrial processes. In other words, carbon-free sunlight can replace fossil fuels in a heavy carbon-emitting corner of the economy that has been untouched by the clean energy revolution.
Scientific Breakthrough: MIT Solves Two Huge Energy Problems (https://oilprice.com/Energy/Energy-General/Scientific-Breakthrough-MIT-Solves-Two-Huge-Energy-Problems.html)
Quote
Scientists from the Massachusetts Institute of Technology have published a paper (https://pubs.rsc.org/en/content/articlelanding/2019/ee/c9ee02412c#!divAbstract) that details the mechanism of a battery device that can suck out the carbon dioxide from the air, store it, and then release it for sequestration or storage and subsequent sale: the oil and gas industry uses CO2 to improve well output.
Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new 'blue' membrane (https://www.sciencemag.org/news/2019/12/rivers-could-generate-thousands-nuclear-power-plants-worth-energy-thanks-new-blue)
Quote
Green energy advocates may soon be turning blue. A new membrane could unlock the potential of "blue energy," which uses chemical differences between fresh- and saltwater to generate electricity. If researchers can scale up the postage stamp–size membrane in an affordable fashion, it could provide carbon-free power to millions of people in coastal nations where freshwater rivers meet the sea.
Ja ne verujem ekonomsku i ekološku održivost tog rešenja sa mešanjem slatke i slane vode. Ali nemam čak ni ideju zašto mi se to sve čini sumnjivo.
Quote from: mac on 07-12-2019, 10:53:03
Ja ne verujem ekonomsku i ekološku održivost tog rešenja sa mešanjem slatke i slane vode. Ali nemam čak ni ideju zašto mi se to sve čini sumnjivo.
Biću na tvojoj strani. Ako popišemo rešeta, sita, obične, difuzione i membranske filtre, svi su skloni kolmiranju kao kontra procesu. Kolmiranje je stručna reč za zapušavanje. Uvek postoji zrno veće od rupe. Kad se uključi trajanje postane zaguljeno. xcheers
Quote from: mac on 07-12-2019, 10:53:03
Ja ne verujem ekonomsku i ekološku održivost tog rešenja sa mešanjem slatke i slane vode. Ali nemam čak ni ideju zašto mi se to sve čini sumnjivo.
U raspravi na slashdotu koja je nastupila povodom ovog teksta isto je dovedeno u pitanje ugrožavanje životne sredine na ime promene pH vrednosti vode u blizini membrane ali ja, naravno, sa svojom srednjoškolskom hemijom teško da mogu da tu dam informisan komentar...
Što se ekonomske dimenzije tiče, za sada je ovo samo proof of concept, kako u tekstu i piše, jer ne može da se napravi ništa čak ni veličine poštanske marke.
Braća Šćiptari imaju "termonuklearne elektrane" na Kosova???
Tako piše u članak...
https://www.b92.net/biz/vesti/srbija.php?yyyy=2019&mm=12&dd=07&nav_id=1627710
The Tiny, Simple Nuclear Reactor That Could Change Energy (https://www.popularmechanics.com/technology/infrastructure/a30225278/tiny-nuclear-reactor/)
China Is About to Fire Up Its 'Artificial Sun' in Quest for Fusion Energy (https://www.newsweek.com/china-about-fire-its-artificial-sun-quest-fusion-energy-1477705)
This Powder—Not Gas—Could Rescue Nuclear Fusion (https://www.popularmechanics.com/science/energy/a30337693/powder-nuclear-fusion/)
Ovo je moglo i u "Živimo SF":
New green technology generates electricity 'out of thin air' (https://phys.org/news/2020-02-green-technology-electricity-thin-air.html)
QuoteScientists at the University of Massachusetts Amherst have developed a device that uses a natural protein to create electricity from moisture in the air, a new technology they say could have significant implications for the future of renewable energy, climate change and in the future of medicine.
Naravno, nigde ne kažu koja je efikasnost ovde, koliko se tu zapravo energije generiše (tj. konvertuje), koliko se brzo ili sporo protein degradira itd. Al zanimljivo.
Elon Musk's Battery Farm Is an Undeniable Success (https://www.popularmechanics.com/science/a31350880/elon-musk-battery-farm/)
Quote
- The battery backup Elon Musk built to win a bet (https://www.unilad.co.uk/technology/elon-musks-australian-battery-farm-has-saved-them-116000000-in-two-years/) has saved South Australia tens of millions of dollars.
- The record-setting "battery" (https://www.popularmechanics.com/science/energy/a13998841/tesla-turns-on-the-worlds-largest-battery/) is made of Tesla PowerPacks and helps stabilize the local grid.
- Rural South Australia experiences bad blackouts each summer.
Al sad Kinezi:
A Million-Mile Battery From China Could Power Your Electric Car (https://www.bloomberg.com/news/articles/2020-06-07/a-million-mile-battery-from-china-could-power-your-electric-car)
Nova (mada poznata već pola veka, al skupa) tehnologija za nuklearne reaktore, tvrde, bezbednija nego ijedna pre. Možda ovo bude rešenje za energetska pitanja bliske budućnosti? Možda i ne!
Nuclear 'Power Balls' May Make Meltdowns a Thing of the Past (https://www.wired.com/story/nuclear-power-balls-triso-fuel/)
Germany is first major economy to phase out coal and nuclear (https://www.bostonherald.com/2020/07/03/germany-is-first-major-economy-to-phase-out-coal-and-nuclear/)
Renewable power surpasses fossil fuels for first time in Europe (https://www.japantimes.co.jp/news/2020/07/23/world/science-health-world/renewables-surpasses-fossil-fuels-europe/)
Striktno govoreći, ovde se radi o proizvodnji električne struje, dakle, ne računaju se automobili, ali svejedno, lep kamen-međaš.
Scientists Turn Normal Red Bricks into Electricity-Storing Supercapacitors (https://www.vice.com/en_us/article/9358ye/scientists-turn-normal-red-bricks-into-electricity-storing-supercapacitors)
Quote"We have created a new brick that can be incorporated into your house that has the functionality of storing electrical energy," said study co-author Julio D'Arcy, assistant professor of chemistry at Washington University in St. Louis, in a call.
NuScale's small nuclear reactor is first to get US safety approval (https://arstechnica.com/science/2020/09/first-modular-nuclear-reactor-design-certified-in-the-us/)
Niko mi neće verovati da sam ja o ovome razmišljao još pre više od godinu dana. Razmišljaju o fuzionom reaktoru koji ne drži atome jakim magnetima nego valjda kristalnim rešetkama. U mojoj ideji tu su bili oni dijamantski nakovnji, s vrhovima veličine bar atoma, pa na vrh tog nakovnja nekim čudom postaviš atome, i onda samo stisneš nakovanj i od dva atoma ispadne jedan plus ekstra energija. Tako je mali Perica zamišljao, ali pošto nikako nisam mogao da smislim to čudo koje bi uglavilo atom na vrh nakovnja, nisam dalje ni širio priču. Ali evo, NASA kaže da je to čudo metal sa praznim mestima u kristalnoj strukturi. Još ćemo i imati hladnu fuziju.
https://www.popularmechanics.com/science/energy/a34096117/nasa-nuclear-lattice-confiment-fusion/
MIT Scientists: Nuclear Fusion Energy Could Be Closer Than Thought (https://oilprice.com/Alternative-Energy/Nuclear-Power/MIT-Scientists-Nuclear-Fusion-Energy-Could-Be-Closer-Than-Thought.html)
This Breakthrough Could Fix the Fatal Flaw in Fusion Reactors (https://www.popularmechanics.com/science/energy/a34480396/fusion-reactor-flaw-edge-localized-modes/)
Kad ugljenik sagoreva dobijemo ugljendioksid, kad vodonik sagoreva dobijemo vodu. U oba slučaja oslobađa se i energija koju potom koristimo. E pa ugljenik i vodonik nisu jedini elementi koji sagorevaju. Tu je i gvožđe. Sagorevanje je zapravo oksidacija, a oksid gvožđa je obična rđa. Prednost sagorevanja gvožđa u odnosu na vodonik je što su i gvožđe i rđa pogodni za skladištenje. Mana je što su teški. Gvožđe neće biti gorivo za automobile, ili još gore avione, ali moglo bi biti zgodno za velike nepokretne gorivne ćelije, koje skladište višak proizvedene energije.
https://newatlas.com/energy/bavarian-brewery-carbon-free-renewable-iron-fuel/
https://www.mcgill.ca/mssi/files/mssi/iron_as_a_recyclable_fuel_and_the_metal-fuel_cycle_1.pdf
Ovo je, naravno, više onako, na pola puta do SF-a ali je lepo maštati:
Solar power stations in space could be the answer to our energy needs (https://theconversation.com/solar-power-stations-in-space-could-be-the-answer-to-our-energy-needs-150007)
Engineers Are Building Huge Salt Caves to Store Huge Amounts of Hydrogen (https://www.popularmechanics.com/science/energy/a34824959/salt-caves-store-hydrogen/)
China turns on nuclear-powered 'artificial sun' (Update) (https://phys.org/news/2020-12-china-nuclear-powered-artificial-sun.html)
Quote
The HL-2M Tokamak reactor is China's largest and most advanced nuclear fusion experimental research device, and scientists hope that the device can potentially unlock a powerful clean energy source.
It uses a powerful magnetic field to fuse hot plasma and can reach temperatures of over 150 million degrees Celsius, according to the People's Daily—approximately ten times hotter than the core of the sun.
Are hydrogen fuel cell vehicles the future of autos? (https://abcnews.go.com/Business/hydrogen-fuel-cell-vehicles-future-autos/story?id=74583475)
Indijska naučnica objašnjava da sva ova gungula oko fuzije nije baš opravdana.
https://youtu.be/FrUWoywZRt8
Norway becomes first country to sell more electric cars than petrol vehicles (https://www.independent.co.uk/news/world/europe/norway-electric-cars-b1782706.html)
Renewable energy production beat fossil fuels in Europe (https://www.theverge.com/2021/1/25/22248992/renewable-energy-beats-fossil-fuels-europe-electricity)
New study: A zero-emissions US is now pretty cheap (https://arstechnica.com/science/2021/01/new-study-a-zero-emissions-us-is-now-pretty-cheap/)
This Swedish carbon-fiber battery could revolutionize car design (https://arstechnica.com/cars/2021/04/this-swedish-carbon-fiber-battery-could-revolutionize-car-design/)
Developer Of Aluminum-Ion Battery Claims It Charges 60 Times Faster Than Lithium-Ion, Offering EV Range Breakthrough (https://www.forbes.com/sites/michaeltaylor/2021/05/13/ev-range-breakthrough-as-new-aluminum-ion-battery-charges-60-times-faster-than-lithium-ion/?sh=58e6b4fc6d28)
Why Biofuels Are Terrible (https://youtu.be/OpEB6hCpIGM)
Ovaj forum postaje prestižan, čim zagrebemo neku temu, počnu da mi se javljaju mejlovima da podrže, ospore ili prošire gledišta. Evo najnovijeg na ovu temu: I noticed you shared an article from Forbes.com in your post about lithium-ion battery developments, here: http://www.znaksagite.com/diskusije/index.php?topic=15754.150
I thought that article from Forbes.com was good but we just published an article that goes much deeper and talks about the technology behind lithium-ion batteries and the recent developments in batteries.
Do you know that researchers from Texas A&M University have invented a technology that can prevent lithium batteries from heating and failing? And St. Petersburg University scientists are developing a polymer-manufactured battery that can charge ten times faster than lithium-ion batteries?
In the article, we talk about the following:
Who are the scientists who played an active role in lithium-ion technology?
What's the technology behind lithium-ion?
How should you charge a lithium-ion battery to preserve its lifespan?
Will fast charging damage your battery?
What are the advancing technologies for batteries?
We quote 22 different sources in the article -- it's quite authoritative.
Here's the article, if you're interested: https://www.icrfq.com/blog/recent-developments-in-batteries-lithium-ion-and-beyond.html
Would you consider linking to our article? I think some of your readers would really find it helpful.
Thank you for your time, and please let me know if you have any questions!
Take care,
-Ella
--
Ella Miller, Editor
5 Ross Rd
Durham, NH 03824
jel to Sagita sad radi za Rio Tinto!?!? 8-)
oćemo svoj dio!
Nije Sagita prestižna, nego botovi tragaju za konkurentskim linkovima, pa reklamiraju svoje. Dobro da se bot nije ulogovao i sam postavio link, ali doći ćemo jednom i dotle.
Pa dobro, al baš oko litijuma i baš sada. Ljudi su inače izludjeli sad oko tog, zna li ko ima li osnove oko tog maestralno otrovnog zagađenja vode i zemlje?
Ima li osnove oko zagađenja? Ne razumem pitanje. Da li je jalovina jalova? Odgovor je da, jalovina jeste jalova.
Ne pričaju oni biće nekakve jalovine nego da će zagaditi rijeke u pola Srbije, a izaziva i boleštine.
Šta je onda, prvo ili drugo?
A šta će to zagaditi reke? Odgovor: jalovina koju će ostaviti za sobom, brdo visine 40 metara, površine sto hektara. Kakve god garancije da nam daju da će ta jalovina biti zaštićena, oni mogu da garantuju samo dok su ovde, a kad iskopaju sve što mogu, i napuste zemlju za 30 godina onda ćemo mi morati tu jalovinu da obezbeđujemo. Ko će onda da garantuje za bezbednost? Država Srbija? Heh
ništa mi nisi objasnio, jel ta jalovina gora od uobičajene jalovine?
ako nije udri, iskopavaj, samo naprijed
o čemu pričamo, litijum je next best thing to nafta
ne kažem će postaneš Norveška za tries godina, ali ne iskoristiti priliku je suludo ako nije baš užasno zagađenje
Mi ćemo dobiti nešto tipa milijardu dolara za 30 godina. To nije ništa. Moraćemo da potrošimo mnogo više da sprečimo tu jalovinu da ne iscuri sledećih 100 godina. Litijum nije baterija budućnosti, jer proizvodnja nije ekološka. Nema potrebe da uništimo 100 hektara, i trošimo više para na saniranje nego što ćemo dobiti eksploatacijom. Ne isplati se, iako se tebi čini da se isplati.
Ako ćemo dobiti samo milijardu to jeste ništa. Ja sam mislio više na nekih 50-100 milijardi.
Ideja nije da mi samo dopustimo "kopanje" litijuma. Premijerka je pre neki dan obnarodovala da izvoz litijuma neće biti dozvoljen (https://www.politika.rs/scc/clanak/483053/Brnabic-Necemo-dozvoliti-izvoz-litijuma-iz-Srbije), tako da je ideja da se ovo tretira kao strateška sirovina gde ćemo kao uslov za dopuštanje investitoru da dođe i vadi rudu dati to da se zapravo kreira kompletan lanac proizvodnje gde će se vaditi ruda a onda praviti električni automobil, sve u Srbiji. E, sad, kolko se oni to sad busaju u grudi a kolko je realno, videćemo.
pa da, na to i mislim, ako ćemo biti afrički izvoznik onda zaebi tu "investiciju"
(https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Lithium_world_production.svg/1024px-Lithium_world_production.svg.png)
Wiki kaže $23 trillion market over the next decade to 2030.
Identified lithium resources total approximately 80 million tons
in 2020. Identified lithium resources for Bolivia and Chile are 9 million tons and in excess of 7.5 million tons, respectively. Identified lithium resources for Democratic Republic of Congo (Manono), Argentina, China, United States and Australia are 6.6 million tons, 6.5 million tons, 5.4 million tons, 5.5 million tons and 1.7 million tons, respectively. Canada, Russia, and Serbia have resources of approximately 1 million tons each. Identified lithium resources for Brazil total 180,000 tons.
šta kao SAD neće da iskopava tih svojih 5.5 miliona tona, aj i to da vidimo
23 biliona dolara u igri, da Srbija uzme osamdeseti dio kalkulator kaže 287.500.000.000
Srbija koja ima 52.000.000.000 gdp iliti 6 puta manje
Pričaš kako bi voleo da se desi, a ne kako su se država Srbija i kompanija Rio Tinto dogovorili.
i ti pričaš kako bi volio da se ne desi a ne kako su država i Rio Tinto dogovorili! 8-)
kao što je pokazao Meho, svašta se tvrdi u javnim glasilima ovih dana
a valjda sam jasan
ili je to čisto iskopavanje i izvoz sirovina - što je neprihvatljivo
ili je značajna industrijalizacija i stvaranje mnoštva privrednih grana i oko toga a onda i na osnovu ekonomskog rasta dalje razgranavanje čak i uslužnog sektora, nevezano za litijum, prosto u okviru gdp rasta, s potencijalom da uveća bruto proizvod 6 puta, što valjda podrazumijeva istovjetno uvećanje plata, svakako preko 2.000 evra prosječna
ali ovi ekološki kraljevi danas se podjednako žale i na prvo i na drugo, to je neozbiljno i neracionalno
pogotovo ako nemamo naučno utemeljene podatke šta taj litijum zapravo zagađuje i koliko
tako da je moje pitanje reko bih jedino razumno: ako postoji prilika ove vrste da Srbija pa i region 4-5 puta uveća prosječnu platu, razvije industrijski sektor u narednih 10 godina (recimo, možda je ovaj scenario nemoguć, al onda bih volio da čujem da neko dokaže da je nemoguć), koliko je zapravo očekivano zagađenje i koliko ga je moguće kontrolisati i sanirati (a onda da dokaže koliko je i ovo moguće)
nema potrebe da prećerujemo s eko-fazonima a da poslije Kanada počne da iskopava i ne žali se na zagađenje
Ne možeš da nas porediš sa Kanadom. Oni bukvalno imaju zemlje za bacanje, bogatstvo da se nose sa velikom kompanijom, i tehnologiju da reše bilo kakav problem na koji naiđu. Poredi nas bolje sa Papuom Novom Gvinejom (https://www.bbc.com/news/world-asia-54340227). I oni doduše imaju velike nenastanjene površine, ali su "mali" i velika kompanija može da ih zavrće kako hoće.
Nova Gvineja je treći svijet, poređenje je besmisleno.
Pa ti sam umeš da pričaš o centru i periferiji. Mi smo periferija za Rio Tinto, to je bar jasno. Rio Tintov profit za 2020. godinu je 45 milijardi dolara. Srbijin bruto domaći proizvod je 51 milijarda dolara. S tim što je korupcija u Srbiji veća nego korupcija u Rio Tintu, i u Srbiji političar donosi odluke u svoju korist, a nauštrb Srbije, dok je god na vlasti, a u Rio Tintu menadžer radi za kompaniju, i bogato je za to nagrađen. Zato ugovor sklopljen sa Rio Tintom ide mnogo više u korist kompaniji, nego državi Srbiji. Da Rio Tinto mora da sanira nusproizvode eksploatacije ne bi mu se isplatila ta eksploatacija, ali ne mora, nego će Srbija da plati taj trošak.
Poređenje sa Papuom Novom Gvinejom je manje besmisleno od poređenja sa Kanadom. BNP Papue Nove Gvineje je 21 milijarda. BNP Kanade je 1736 milijardi. Na BNP listi na vikipediji Srbija i Papua Nova Gvineja mogu zajedno da se postave u isti ekran, Srbija na 87. mestu, a PNG na 111.
Šteta koju su napravili u rudniku Grassberg u Indoneziji je toliko značajna da se norveški penzioni fond oslobodio svih akcija Rio Tinta s obrazloženjem da ne može da podrži takvo neetičko ponašanje. Budi kao Norveška.
mac, ja tebe ništa ne kontam. Umiješ li da apstrahuješ ovo pitanje?
pod tim mislim:
1) nije Rio Tinto jedina firma na planeti, može i neka druga
2) jedino što si mi rekao je da je Norveška u načelu ZA ekstrakciju i korištenje litijuma, a to je li baš za saradnju sa jednom konkretnom firmom (pa bila je i sa njom, kako sam kažeš)...
3) i dalje nema odgovora na pitanje da li treba iskoristiti litijum ako postoji povoljna cost-benefit analiza
nema potrebe da idem dalje ako mi nisi odgovorio na tako prosto pitanje
P.S. gledaš pogrešnu gdp listu na wiki
https://en.wikipedia.org/wiki/List_of_countries_by_GDP_(PPP)_per_capita
Ne gledam pogrešnu listu. Per capita je kad pričamo o blagostanju ljudi u državi. Bruto je kad pričamo o snazi države da se nosi sa drugim van-državnim akterima. Dobru sam ja listu odabrao.
Nema tu šta da se apstrahuje. Norveška nije apstrahovala nego je bila konkretna. Budi konkretan, budi kao Norveška. Rio Tinto je konkretno kompanija s kojom je opasno ulaziti u kolo. Negativne posledice po državu su veće ako je država slaba. Kanada je jaka i može bez problema da se uhvati u kolo sa Rio Tintom. Može i Srbija, ali rizik od efeketa "skuplja dara nego mera" je za Srbiju mnogo veći nego za Kanadu.
Tvoje treće pitanje podrazumeva da je Rio Tinto kao i svaka druga kompanija, ali ona to nije, jer se norveški penzioni fond nije oslobodio akcija drugih kompanija. Eksploatacija resursa je u principu okej, ali postoje nusefekti. Jesmo li ih proučili?
pravi odgovor je da ih nismo proučili uprkos tome što ti tvrdiš da jesmo
ja sam prije da se litijum da Kinezima i mirna Bosna, ne kontaš da mene baš briga za Rio Tinto, jedva da sam ga i spomenuo
pričamo o resursu globalnom procijenjenom na 23 biliona dolara minimum, max procjena je 33 biliona, to je gdp čitave Evropske unije, to je 70x Norveška
dakle, ako nisi 100% siguran da je iskopavanje litijuma veća šteta nego korist mojne smaraš dalje
ja ne pitam za rio tinto već za litijum generalno, i jopet ponavljam neozbiljno je i neracionalno ispustiti priliku ako zagađenje nije veće od norveških naftnih mrlja
Cela Srbija priča o Rio Tintu, a samo Bata priča o litijumu.
Bata uvijek o suštini
daš Srbima šansu da se izvade iz govana, oni izmisle da će umirati od raka zbog litijuma
to kao da je neko Nemanjićima reko da ne dovode Sase rudare, će zagade izvore
pa hajde budite sto posto sigurni u to što pričate: 1) zagađenje, 2) stvarno štetan poslovni ugovor Srbije sa nekom firmom (npr Tintom)
što se mene tiče, dok ne vidim dokaze da taj litijum toliku štetu nanosi, smatram sve koji pričaju protiv litijuma ili državnim neprijateljima koji su plaćeni od drugih država da sprečavaju ekonomski rast Srbije, zadržavajući je na ekonomskoj perfieriji ili prosto da previše prate neke informativne kanale koji zarađuju od skandala eko-katastrofe
Litijum na stranu, Rio Tinto ima dosta poznatu lošu reputaciju kao, jelte, nekakav epitom zle korporacije:
https://londonminingnetwork.org/2010/04/rio-tinto-a-shameful-history-of-human-and-labour-rights-abuses-and-environmental-degradation-around-the-globe/
https://www.corp-research.org/rio-tinto
isto kao i Amazon pa svi čekaju da dođe
naravno, zato i služe pregovori i lupa javnosti da utvrdi šta će uopšte da se radi
Quote from: mac on 14-07-2021, 14:33:43
Ne gledam pogrešnu listu. Per capita je kad pričamo o blagostanju ljudi u državi. Bruto je kad pričamo o snazi države da se nosi sa drugim van-državnim akterima. Dobru sam ja listu odabrao.
da ne zaboravim ovo, jer naravno da je u pitanju maestralna greška: Kina danas ima veći gdp ali ne per capita od SAD. Tako da se ne bih ja mijenjao u per capita slučaju, ni u smislu osobnog blagostanja niti snage države.
Quote from: Labudan on 14-07-2021, 16:02:56
isto kao i Amazon pa svi čekaju da dođe
AOC je jedan od retkih izuzetaka, jer je ona jedna časna mlada žena. No, naravno, Rio Tinto je u biznisu koji je generalno vezan za dosta zebnje od zagađenja okoline pa im to daje poseban preliv rizika. Inače, kad budete guglali koliko zagađenje proizvodi rudarenje litijuma iznenadiće vas kad vidite da litijum jeste neophodan da biste pravili električna, jelte, kola, ali da nije dovoljan i da ako nemate jednako dobre rezerve kobaltne rude na raspolaganju, cela stvar može da bude neisplativa onako kako smo to mi zamislili...
pa ok, kolko vidim, mada realno oslanjati se na gugl u ovakvim stvarima je naša forumaška sudbina, kobalt ima Australija, Rusija, Kina... dakle i Rio Tinto i Putin i Si
ali ozbiljna cost-benefit analiza tek predstoji, mene samo zapanjuje da se ovo odbacuje u principu bez ikakvog pregleda svih činjenica
litijum nova korona
Ma dobro, velikim delom je to na ime reputacije Rio Tinta a onda i na ime reputacije našeg režima (i to ne samo ovog) koji voli da sklapa netransparentne poslove sa stranim partnerima gde par decenija ne znate šta je kost a šta benefit. Da oteramo, što kažu, Nemce, pa da neko kršteno strčuno telo uradi analizu pa da vidimo. Generalno, u ovom trenutku deluje kao najbezbednija opcija biti protiv kombinacije SNS-Rio Tinto.
Vučuć prati tvoje "oko javnosti" i podiže ulog na "Sauronovo oko".
Quote from: Meho Krljic on 14-07-2021, 16:26:24Generalno, u ovom trenutku deluje kao najbezbednija opcija biti protiv kombinacije SNS-Rio Tinto.
pa da, al to nije bilo moje pitanje haha
pitanje je jel iskopavanje litijuma u Srbiji toliko štetno ili su samo štetni konkretni akteri koji bi to izveli
jer ljudi prosto odbaciše i bebu zajedno s prljavom vodom (iliti SNS Tintom), kao da je nemoguće imati lithium-based industriju u Srbiji a da ne bude smak svijeta
mene muči to poklapanje dva različita pitanja
Razumeo sam ja šta ti pitaš al ne bih da se pretvaram da imam ikakav verodostojan odgovor na to - ti umeš da ovo izguglaš isto kao i ja a neko sa više znanja i vremena treba da razgrne šta sve tu piše i uputi nas u srž istine.
Šta smo doživeli, da Bata i ja budemo na istoj strani, a naspram maca i Mehe. :lol: Luda vremena!
Nani?
Ja sam mislio da sam ja na istoj strani sa Batom? Mislim, Rio Tinto i SNS su verovatno letalna kombinacija ali načelno, ovo možda nije inicijativa bez potencijala.
Mora da je od ove vrućine!
Preleteo sam u brzini!
Fly-by osuda i razdor!!!!!!!!!
Quote from: mac on 14-07-2021, 14:54:02
Cela Srbija priča o Rio Tintu, a samo Bata priča o litijumu.
i svi grijese.
citam novine, svaki dan otvaraju se novi pogoni, sa ili bez eksploatacije licija, svi slave, raspravlja se i o ekologiji, a nitko ne vidi ono bitno: propadeste kao narod (i pojednici). od ratnog, do radnog naroda; sunovrat. ustajete za mraka, pa na posao, pravi posao, dosadni, iscrpljujuci, zaludni, pa se vracate za mraka, zaboga.
sta je to?! ne znam kad je srbija kroz povijest toliko nisko pala, srbin valjda ide u vojnike, milicajce, upravnike, vladare, nadzornike i pljackase? pa drugi idu na posao, dok srbin budnim okom motri, zaustavi prvog radnika koji biciklise na posao, naplati mito jer ovaj nema svjetlo i prednji tocak mu ide u osmicu, pa popije kavicu, prosece, meditira, ocijuka sa zenama, pa naplati mito kad spazi u izlogu nesto zanimljivo, itd. sta je sad ovo, zaboga?!
https://nova.rs/vesti/drustvo/akademik-stevanovic-rio-tinto-preti-da-ugrozi-najvaznije-izvoriste-vode-srbije/
Kina privodi kraju torijumski reaktor hlađen topljenim solima. To je budućnost (kao i fuzioni reaktori, naravno), a ne litijumske baterije.
https://newatlas.com/energy/china-world-first-thorium-nuclear-reactor/
Mac kao ne koristi litijumske baterije a ima ih tri puta više od mene.
Budućnost u čuvanju energije nisu litijumske baterije, nego super-kondenzatori na bazi grafena i ugljeničnih nanocevi.
https://newatlas.com/nawa-nanotube-ultracapacitor-production/59684/
Za razliku od litijuma, ugljenika ima svuda. Možeš da isisaš iz vazduha, zapravo i treba ga isisati što više.
Mi ćemo možda imati problem kada se u sred eksploatacije ispostavi da je ceo svet prešao na drugu tehnologiju. Pašće potražnja za litijumom, i nećemo moći da zaradimo onoliko koliko smo projektovali, a svejedno ćemo kopati litijum i "proizvoditi" jalovu zemlju. Proći ćemo kao Venecuela sa naftom.
Naravno, može i suprotno da se desi, da potražnja i za litijumom i za ugljeničnim kondenzatorima raste i nadalje, sledećih 50 godina. To je kocka, može da ispadne i ovako i onako, ali jalovina koja curi u izvore pitke vode ti ostaje u 100% slučajeva.
ah, šbbkbb... pa super, slažem se da sve treba uzeti u obzir, samo ta obećavanja da će u narednih 10 godina srediti ekološki kvalitetnije baterije i ostale energije to čisto sumnjam, eno Njemačka i Merkel konstantno pričaju o 2050. godini kao nekoj prekretnici kada završavaju sa dizel motorima
ljudi stalno misle SF budućnost je iza ugla a svijet i dalje prdi i smrdi
čak i ovaj akademik na linku prvo kaže da istraživanje nije ni sprovedeno, pa ne pričajmo hop prije skoka
moja dva centa su da nije Kanada luda da sada kreće u litijum ako zna da su im kvebekovski sunarodnici na korak od velikog otkrića, tj da je bolje da Srbija nakon što se završi studija izvodljivosti zajaše litijum što prije i unovči
ako ikako može bez burazerskog kolonijalizma, naravno, i nisam lud da podržavam uništavanje života ljudi, ali jesam lud da ako se ispostavi suprotno i pokaže da neko laže iz političkih razloga, lijepo otvorim jedan Goli otok i prijavim se za upravnika
kao što vidiš, otvorenog sam uma! 8-)
China Plans to Build the World's First Waterless Nuclear Reactor (https://interestingengineering.com/china-plans-to-build-the-worlds-first-waterless-nuclear-reactor)
Torijum, naravno. Mada gunđala na Slešdotu ukazuju da neće biti stvarno prvi koji je "bez vode" nego prvi komercijalni bez vode u vrlo specifičnom delu psocesa...
The 'world's most powerful tidal turbine' starts to export power to the grid (https://www.cnbc.com/2021/07/28/worlds-most-powerful-tidal-turbine-starts-to-export-power-to-grid-.html)
The race to give nuclear fusion a role in the climate emergency (https://www.theguardian.com/environment/2021/aug/28/the-race-to-give-nuclear-fusion-a-role-in-the-climate-emergency)
Novi tip baterije u kome možda leži budućnost
Energy Storage Breakthrough - Solid Hydrogen Explained (https://youtu.be/U7CCq4oBgw4)
A vodonika bar ima :| :| :| :|
Prilično solidna analiza naučnice Sabine Hossenfelder o budućnosti nuklearne energije.
Is Nuclear Power Green? (https://youtu.be/0kahih8RT1k)
Krajnji zaključak? It's complicated...
Pade mi na pamet nešto. Hyperloop je vakuumiran tunel sa magnetnim prstenovima. Fuzioni reaktor je vakuumiran tunel sa magnetnim prstenovima. Što ne bismo spojili ova dva? U deonicama gde trenutno nema saobraćaja sudaramo jezgra vodonika i helijuma i proizvodima višak energije. Ili još bolje, vozovi imaju rupu u centralnoj osovini, i kroz tu rupu prolazi helijumska sačma (https://en.wikipedia.org/wiki/Inertial_confinement_fusion) (peleti), na svom putu da bude sabijena i fuzionisana.
Tunel bi morao da bude "vrlo" prav, da praktično ide pod zemljom, da ne bi morao da prati zakrivljenje Zemljine kugle. Deluje zamislivo. Zapamtite, ovde ste to prvi put čuli...
Uz malo onlajn kalkulacije dolazimo da tunel koji je 500 metara pod zemljom u najdubljoj tački (na sredini) može da bude 500 kilometara dugačak. Sad dodušem shvatam da bi ovo bilo mnogo skupo. Ko će da buši 500 km zemlje. Mogla bi da se napravi neka kombinacija nadzemnog i podzemnog tunela, šta znam. A možda tunel i ne mora da bude super-prav, nego magneti mogu i da zakrive putanju peleta.
Onda se neko malo pokarabasi oko reda vožnje i celu smenu dece koja žure u školu u drugi grad anihiliraš termonuklearnom detonacijom :? :? :? :?
Ma, Mask je to. Garant je uključio fuzioni reaktor u inicijalni dizajn Hyperloopa. A struju će da prodaje ispod žita. Ceo profit njemu.
Plus, ovo Mehovo za random žrtvovanje dece Reptilijanskom božanstvu isto mi zvuči kao napredna opcija uključena u inicijalni dizajn.
It's Not a Bug, It's a Feature!
Rechargeable Molten Salt Battery Freezes Energy in Place for Long-Term Storage (https://www.scientificamerican.com/article/rechargeable-molten-salt-battery-freezes-energy-in-place-for-long-term-storage/)
The Door to Fusion Energy Might Have Just Been Unlocked (https://www.thedailybeast.com/the-power-of-fusion-energy-might-finally-be-unlocked-thanks-to-a-new-physics-update?source=articles&via=rss)
Dobro, nije baš toliko dramatično, ali svakako solidan korak napred,
Geotermalna energija postaje ne samo ostvariva, nego i isplativa.
Why This Fusion Tech May Be a Geothermal Energy Breakthrough (https://youtu.be/g8sjdOjNxIE)
Peščane baterije su najnoviji miljenik novinar koji pišu o energetici i održivim, jelte, rešenjima:
World's first commercial sand battery begins energy storage in Finland (https://newatlas.com/energy/sand-battery-polar-night/)
Zanimljiv niz na tviteru o odlaganju potrošenog nuklearnog goriva:
https://twitter.com/MadiHilly/status/1550148385931513856 (https://twitter.com/MadiHilly/status/1550148385931513856)
Ovaj tekst je citiran u nizu ali evo ga i ovde:
https://www.forbes.com/sites/michaelshellenberger/2018/06/19/stop-letting-your-ridiculous-fears-of-nuclear-waste-kill-the-planet/?sh=4e74f520562e
Na pragu smo hladne fuzije. Možda!
Three peer-reviewed papers highlight scientific results of National Ignition Facility record yield shot (https://www.llnl.gov/news/three-peer-reviewed-papers-highlight-scientific-results-national-ignition-facility-record)
Ne znam da li termin "hladna fuzija" može da se primeni na nešto što uključuje 192 laserska zraka koja istovremeno gađaju objekat veličine glave čiode. Neka neko podmetne ruku na to mesto, da nam javi je li hladno...
Dobro, dobro, al ne treba ti atomska bomba da je startuješ, to je već, jelte, korak do praga!!!!!!!
A new concept for low-cost batteries
QuoteThe new battery architecture, which uses aluminum and sulfur as its two electrode materials, with a molten salt electrolyte in between, is described today in the journal Nature, in a paper (https://www.nature.com/articles/s41586-022-04983-9) by MIT Professor Donald Sadoway, along with 15 others at MIT and in China, Canada, Kentucky, and Tennessee.
(...)
This new battery formulation, he says, would be ideal for installations of about the size needed to power a single home or small to medium business, producing on the order of a few tens of kilowatt-hours of storage capacity.
Zanimljivo, ovu tehnologiju sad prvi put vidim. Možda ispadne nešto od ovoga, ko zna.
Nuclear Fusion 3.0: Real World Electricity is Coming (https://youtu.be/4GJtGpvE1sQ)
Dosta smo još daleko od sveta bez fosilnih goriva:
Wind, solar fulfill 10% of global electricity demand for first time (https://www.theregister.com/2022/09/29/wind_solar_power_electricity_record/)
Bežični prenos velikih energija na velike daljine mogao bi postati stvarnost.
https://newatlas.com/energy/emrod-space-solar-wireless-energy/
Takvom infrastrukturom mogle bi da se okoriste i buduće svemirske letelice. Ne treba ti gorivo na brodu, ako ti energija kontinualno pristiže u vidu infracrvenog zraka sa Zemlje.
ne moram ni otvarat da kažem ništa od toga dječaci
isto ko teleportacija
Spomenuli su te u članku, Komi. Spomenuti su ljudi koji prosto ne mogu da poveruju u ceo koncept. Ljudi već znaju za prenos informacija na daljinu, ali prenos energija na daljinu im je neverovatan, iako se informacije na daljinu prenose upravo energijom.
zvuči kao gubljenje vremena da se Mask zabavi malo na letu za Mars, što je potpuno nebitno za radničku klasu koja traži koristan SF
Pa sad, ti bi da radnička klasa radi, ali u budućnosti roboti će da rade bolje i jeftinije to što sada radnička klasa radi. U budućnosti radnička klasa neće postojati, ali ljudi će nastaviti da postoje, samo što neće biti više u "radničkoj klasi".
Koristan SF je recimo premeštanje asteroida 16 Psyche u orbitu oko Meseca ili Zemlje, i onda eksploatacija tog asteroida, koji je ogroman i put metala. Bogataši će se obogatiti, ali sav taj metal će doneti neku korist raznim drugim ljudima. Možda ne baš "radničkoj klasi", ali ljudima da.
A ne može biti gubljenje vremena nešto što omogućava efikasniju distribuciju energije. To jest, ako budemo uveli jeftine fuzione reaktore u svako selo, onda će tada ta energetska mreža delom izgubiti svrhu, ali dosta će vremena proteći do tada. A čak i tada ćemo tu energetsku mrežu preusmeriti na pomeranje stvari u svemiru, kao što rekoh.
Quote from: mac on 10-10-2022, 12:26:30
Pa sad, ti bi da radnička klasa radi, ali u budućnosti roboti će da rade bolje i jeftinije to što sada radnička klasa radi.
roboti ni sada ništa ne rade sami nego mora buljuk radnika da ih nadgleda da nešto ne zaseru
dokle će ta ideja da automatizacija može da zamijeni ljudski rad opstajati kao nešto realno moguće... kao roboti će sami da ubiru rudu sa tog asteroida, mda
da ne pričamo da se neki zavidan nivo robotizacije može postići apsolutno i jedino izrabljivanjem ljudi da bi se uopšte stvorili ti roboti
Roboti su sadašnjost, a ne budućnost.
https://youtu.be/P7fi4hP_y80 (https://youtu.be/P7fi4hP_y80)
Da proizvodnja automobila nije automatizovana onda bi automobili koštali kudikamo više, i manje ljudi bi moglo da ih priušti. Ali makar bi neki metaloglodač bio srećan zato što može da glođe metal.
roboti skupi, a sirotilje će uvek biti, tako da teško da će prestati da postoji radnička klasa u skorijoj budućnosti.
mače, pa našo si ništa manje nego bmw da spomeneš kao auto koji svako može priuštiti haha
šta onda radi 130.000 bmw zaposlenih, mora da nešto rade
2.500 miliona automobila proizvedu godišnje, dakle brat bratu 20 po radniku godišnje
mnogo su brzi, nema šta, čoek bi pomislio 200 po radniku će ti roboti da naprave
a čak i da napokon postanu superefikasni sigurno neće raspodijeliti dobit po čitavom društvu, ti kao da ne kontaš osnove kapitalističkog sistema, kamoli prokletih neoliberala
robotizovana je najšeće finalna montaža, a dotle ima svašta nešto da se uradi. bila je neka analiza koliki su troškovi rada u automobilskoj industriji, i u finalnoj montaži oni jesu mali, ali kada kreneš nizvodno u lancu snabdevanja vidiš koliki su preneti troškovi rada svih učesnika.
edit: automobili nikad skuplji :(
Sve je to suplja
odlično! Nači isto ko što Epl pada s neba ovi na snimku sakriju kosooku djecu koja im proizvodi šrafove prije finalne montaže. Eventualno saznaš od Vučića da je baš Srbija dobila fabriku palaca na kurcu za bmw i da je baš zato postala još moćnija, Hrvati da nam pozavide.
Evo nešto da se nadoveže na ovu raspravu iako nije energetika u pitanju:
In the battle with robots, human workers are winning (https://www.sfexaminer.com/news/national/in-the-battle-with-robots-human-workers-are-winning/article_67d5226b-f173-5063-b3e9-e084f2605e8d.html)
jel istina da se kod vas plaća 8 eura trošio ne trošio struja mjesečno
a koliko košta kad te iskoščaju da te ponovno ukopčaju
BYU professors create reactor designed to safely produce nuclear energy. Here's how it works (https://www.ksl.com/article/50505054/byu-professors-create-reactor-designed-to-safely-produce-nuclear-energy-heres-how-it-works)
Quote
A chemical engineering professor at Utah's BYU has created a nuclear reactor design (https://news.byu.edu/byu-profs-create-safer-system-to-produce-nuclear-energy) that could produce enough energy for 1000 homes in the space of 4 feet by 7 feet. And there's a bonus: potentially no nuclear waste or risk of melt down.
They use molten salt that bonds with the dissolved fuel. Then, very valuable Molybdenum-99 (as in $30 million per gram) can be extracted from that salt and sold for use in medical imaging.
Additionally, this system is very inexpensive, at a cost of around 3 cents per kilowatt hour.
Real Engineering kanal je napravio tehnički informativan video o tome kako firma Helion radi fuziju. Ovo nije u vezi sa skorašnjom vešću da je proizvedena neto pozitivna energija u procesu fuzije. To je radio National Ignition Facility (https://en.wikipedia.org/wiki/National_Ignition_Facility). Helion je druga firma, i proces je drugačiji.
A New Way to Achieve Nuclear Fusion: Helion (https://youtu.be/_bDXXWQxK38)
Grčka fizičarka objašnjava prednosti i mane nuklearnog reaktora na bazi tečnih soli, koji bi koristio torijum kao gorivo. Sad sam prvi put saznao da nusproizvod rada ovog reaktora može biti nuklearni materijal od koga može da se pravi atomsko oružje, i da zato Srbiji u dogledno vreme (sledećih 100 godina) verovatno neće biti dozvoljeno da poseduje takav reaktor. Moramo da se zadovoljmo klasičnim nuklearnim reaktorima, ako uopšte krenemo tim putem.
Nuclear Physicist EXPLAINS - What are Thorium Reactors? (https://youtu.be/148NI9j23Kg)
In a first, renewables beat coal in the US power sector in 2022 (https://electrek.co/2023/03/27/in-a-first-renewables-beat-coal-in-the-us-power-sector-in-2022/)
A Twisted Reactor From Hell Could Propel Nuclear Fusion Forward (https://www.popularmechanics.com/science/energy/a43444304/stellarator-twisted-fusion-reactor/)
Malo bombastičan naslov, ali tekst objašnjava princip funkcionisanja "stellaratora" i to je, jelte, interesantno.
Dobre vesti iz sveta geotermalne energije. Kanadska firma Eavor ima tehnički razrađeno rešenje i ugovorene poslove da to rešenje ostvari.
Geothermal is going global! (https://youtu.be/gV92QFDb5qQ)
Srbija je dospela na Voxovu mapu. Pričaju o raznim načinima skladištenja energije (Litijum jonske baterije, veštačka jezera, veliki tegovi, Fero oksid (tj. rđa) baterije), da bi se uskladili ponuda i potražnja tokom dana, i na mapi poznatih nalazišta litijuma dodali su i Srbiju sa 1 milion tona.
How to fix clean energy's storage problem (https://youtu.be/z-k5uS7ALXk)
Zaboravili su da pomenu toplotnu energiju u tečnim solima, i energiju u pritisku gasova (obično se za to koristi ugljen dioksid).
Sodium-ion battery offers a potential low-cost alternative to lithium-ion battery for India. (https://www.ey.com/en_in/automotive-transportation/revolutionizing-ev-batteries-a-breakthrough-for-india)
Tooze pre par meseci, okačiću i na Otapanje
https://www.youtube.com/watch?v=3qFCsoJ4IVY
Scientists successfully replicate historic nuclear fusion breakthrough three times (https://edition.cnn.com/2023/12/20/climate/nuclear-fusion-energy-breakthrough-replicate-climate/index.html)
Chinese-developed nuclear battery has a 50-year lifespan — Betavolt BV100 built with Nickel-63 isotope and diamond semiconductor material (https://www.tomshardware.com/pc-components/power-supplies/chinese-developed-nuclear-battery-has-a-50-year-lifespan)
New material found by AI could reduce lithium use in batteries (https://www.bbc.com/news/technology-67912033)
Najjače je što tekst mora da objašnjava da je ovo "dobra" AI jer zna kolko nam je pun kurac griftera...
28-ton, 1.2-megawatt tidal kite is now exporting power to the grid (https://newatlas.com/energy/minesto-tidal-kite/)
Japan launches world's first steady-state nuclear fusion reactor in bid to offer limitless energy: 'Up and creating electrical power within the next 10 years' (https://www.thecooldown.com/green-tech/steady-state-nuclear-fusion-reactor-helical/)
Quote
A Tokyo-based company called Helical Fusion is set to launch a first-of-its-kind steady-state nuclear fusion reactor, Interesting Engineering (https://interestingengineering.com/energy/nuclear-fusion-reactor-japan-launch) reported. It would be considered a "pilot" reactor, but if successful, the project could have major implications for the future of clean energy.
World's 1st nuclear-diamond battery of its kind could power devices for 1000s of years (https://www.livescience.com/technology/engineering/worlds-1st-nuclear-diamond-battery-of-its-kind-could-power-devices-for-1000s-of-years)
Možda je to put ka ugljeničkom procesoru. Mešavina dijamanta i ugljeničnih nanocevi, sa energijom koja se proizvodi upravo tamo gde se i troši. Živimo u interesantnim vremenima...
Mat Ferel opet priča o torijumskim reaktorima (koji su i moji favoriti, dok čekamo na fuziju). Ovog puta neki Danci su u igri.
Why Thorium is About to Change the World (https://youtu.be/bz4aTO6M4Ho)
Lex Fridman ugostio CEO Heliona, David Kirtley. Ovaj tehnički objašnjava šta tačno rade tamo u tom Helionu.
David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy (https://youtu.be/m_CFCyc2Shs)
Lik je prvo pokušavao da priča jednostavnim jezikom, ali kako intervju odmiče mora da objašnjava sve komplikovanije stvari, pa postaje sve zanimljivije (bar meni).
Finsko-estonska kompanija Donut Lab tvrdi da je napravila "solid state" bateriju. Ovaj tip baterije je u svim parametrima bolji od litijumske, a pritom ne sadrži litijum. Ako nas ne mažu, ovo su dobre vesti za ceo svet, a posebno za nas, jer će litijumu pasti cena, a time će i Jadar u startu postati neprofitabilan. Brine me samo što ovaj Donut hoće da prvi proizvod sa novom baterijum bude motocikl sa onim futurističkim točkovima bez centralnog dela. Taj dizajn se do sada pokazao kao faličan, i svako ko radi na takvom motociklu mi u startu daje vajbove neke mačke u džaku. Ali videćemo.
Investigating the FIRST Solid State Battery in HISTORY (https://youtu.be/O8PjlwZVLVE)
Investigating The World's First Solid State Battery (https://youtu.be/Qsi-TS8PX7U)
China's Fusion Reactor Reached an 'Unbreakable' Limit—and Broke Right Through It (https://www.popularmechanics.com/science/energy/a69949952/east-reactor-greenwald-limit/)
QuoteBy exceeding a long-standing density barrier, China's EAST fusion reactor proved that tokamaks can pack way more atoms into its plasma before destabilizing.
Kompanija Zap Energy radi na novom metodu za postizanje fuzije. Smislili su kako da sabiju plazmu koristeći samu plazmu, umesto super-snažne magnete. Ovo bi moglo biti rešenje.
Solving Fusion's BIGGEST Problem (https://youtu.be/67ESPmHIqCU)
Quote from: mac on 14-11-2020, 15:06:36Kad ugljenik sagoreva dobijemo ugljendioksid, kad vodonik sagoreva dobijemo vodu. U oba slučaja oslobađa se i energija koju potom koristimo. E pa ugljenik i vodonik nisu jedini elementi koji sagorevaju. Tu je i gvožđe. Sagorevanje je zapravo oksidacija, a oksid gvožđa je obična rđa. Prednost sagorevanja gvožđa u odnosu na vodonik je što su i gvožđe i rđa pogodni za skladištenje. Mana je što su teški. Gvožđe neće biti gorivo za automobile, ili još gore avione, ali moglo bi biti zgodno za velike nepokretne gorivne ćelije, koje skladište višak proizvedene energije.
Gvožđe-vazduh baterije (iron-air) su ušle u serijsku proizvodnju. Kompanija Form Energy ih isporučuje i zapošljava ljude.
The 100-Hour Battery Is Real — Iron-Air Just Took a Huge Step Forward! (https://youtu.be/fb2BaANfCLg)
Quote from: mac on 10-01-2026, 18:40:28Finsko-estonska kompanija Donut Lab tvrdi da je napravila "solid state" bateriju. Ovaj tip baterije je u svim parametrima bolji od litijumske, a pritom ne sadrži litijum. Ako nas ne mažu, ovo su dobre vesti za ceo svet, a posebno za nas, jer će litijumu pasti cena, a time će i Jadar u startu postati neprofitabilan. Brine me samo što ovaj Donut hoće da prvi proizvod sa novom baterijum bude motocikl sa onim futurističkim točkovima bez centralnog dela. Taj dizajn se do sada pokazao kao faličan, i svako ko radi na takvom motociklu mi u startu daje vajbove neke mačke u džaku. Ali videćemo.
Izgleda da nas ipak mažu.
Testing The World's First Solid-State Battery (https://youtu.be/H45HXs4xXfA)