Energetika juče, danas, sutra

[Meho Krljic]

Researchers transmit energy with laser in ‘historic’ power-beaming demonstration

Naravno, za sada su gubici poveliki ali ovo je ipak impresivno.

[Meho Krljic]

 New Battery Design Can Charge an Electric Car in 10 Minutes 
 
 

[Meho Krljic]

An Energy Breakthrough Could Store Solar Power for Decades

Scientists at Chalmers University of Technology 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, 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. 

[mac]

Evo ga još jedan kao ja, što se loži na torijum:

https://youtu.be/biToH42YZZ4

[Meho Krljic]

Secretive energy startup backed by Bill Gates achieves solar breakthrough

Naravno, reči poput "secretive", "startup", "bill", "gates" i "breakthrough" sugerišu da ovo sve treba konzumirati uz dosta soli, ali evo, da zabeležimo:

Heliogen, 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.

[Meho Krljic]

Scientific Breakthrough: MIT Solves Two Huge Energy Problems
 

Scientists from the Massachusetts Institute of Technology have published a paper 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.
 

[Meho Krljic]

Rivers could generate thousands of nuclear power plants worth of energy, thanks to a new ‘blue’ membrane 
 

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.
 
 

[mac]

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.

[scallop]

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. 

[Meho Krljic]

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.

[Accuphase]

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

[Meho Krljic]

The Tiny, Simple Nuclear Reactor That Could Change Energy

[Meho Krljic]

China Is About to Fire Up Its 'Artificial Sun' in Quest for Fusion Energy

[Meho Krljic]

This Powder—Not Gas—Could Rescue Nuclear Fusion

[Meho Krljic]

Ovo je moglo i u "Živimo SF":



New green technology generates electricity 'out of thin air'

Scientists 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.

[Meho Krljic]

Elon Musk's Battery Farm Is an Undeniable Success
 

• The battery backup Elon Musk built to win a bet has saved South Australia tens of millions of dollars.
• The record-setting "battery" is made of Tesla PowerPacks and helps stabilize the local grid.
• Rural South Australia experiences bad blackouts each summer.

[Meho Krljic]

Al sad Kinezi:

A Million-Mile Battery From China Could Power Your Electric Car

[Meho Krljic]

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

[Meho Krljic]

Germany is first major economy to phase out coal and nuclear       

[Meho Krljic]

Renewable power surpasses fossil fuels for first time in Europe 
 
Striktno govoreći, ovde se radi o proizvodnji električne struje, dakle, ne računaju se automobili, ali svejedno, lep kamen-međaš.

[Meho Krljic]

Scientists Turn Normal Red Bricks into Electricity-Storing Supercapacitors

“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.
 

[Meho Krljic]

NuScale’s small nuclear reactor is first to get US safety approval

[mac]

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/

[Meho Krljic]

MIT Scientists: Nuclear Fusion Energy Could Be Closer Than Thought

[Meho Krljic]

This Breakthrough Could Fix the Fatal Flaw in Fusion Reactors

[mac]

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

[Meho Krljic]

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    

[Meho Krljic]

Engineers Are Building Huge Salt Caves to Store Huge Amounts of Hydrogen

[Meho Krljic]

China turns on nuclear-powered 'artificial sun' (Update)
 

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.
 

[Meho Krljic]

Are hydrogen fuel cell vehicles the future of autos?

[mac]

Indijska naučnica objašnjava da sva ova gungula oko fuzije nije baš opravdana.

https://youtu.be/FrUWoywZRt8

[Meho Krljic]

Norway becomes first country to sell more electric cars than petrol vehicles