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Smelting Steel Without Fossil Fuels: Solar Power Shatters the 1,000°C Barrier for Industrial Heating
https://scitechdaily.com/ ^ | MAY 17, 2024 | CELL PRESS

Posted on 05/17/2024 1:22:17 AM PDT by Jonty30

Swiss researchers have developed a solar energy method using synthetic quartz to achieve temperatures above 1,000°C for industrial processes, potentially replacing fossil fuels in the production of materials like steel and cement.

Instead of burning fossil fuels to reach the temperatures needed to smelt steel and cook cement, scientists in Switzerland want to use heat from the sun. The proof-of-concept study uses synthetic quartz to trap solar energy at temperatures over 1,000°C (1,832°F), demonstrating the method’s potential role in providing clean energy for carbon-intensive industries. A paper on the research was published on May 15 in the journal Device.

The Need for Decarbonization

“To tackle climate change, we need to decarbonize energy in general,” says corresponding author Emiliano Casati of ETH Zurich, Switzerland. “People tend to only think about electricity as energy, but in fact, about half of the energy is used in the form of heat.”

Glass, steel, cement, and ceramics are at the very heart of modern civilization, essential for building everything from car engines to skyscrapers. However, manufacturing these materials demands temperatures over 1,000°C and relies heavily on burning fossil fuels for heat. These industries account for about 25% of global energy consumption. Researchers have explored a clean-energy alternative using solar receivers, which concentrate and build heat with thousands of sun-tracking mirrors. However, this technology has difficulties transferring solar energy efficiently above 1,000°C.

(Excerpt) Read more at scitechdaily.com ...


TOPICS: Business/Economy; Education; Science; Society
KEYWORDS: smelting; solar; solarpower; steel; switzerland; vaporware
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This is pretty big, I think. There are a lot of industrial applications that could be met if this technology can be perfected.
1 posted on 05/17/2024 1:22:17 AM PDT by Jonty30
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To: Jonty30

Do you believe “climate change” is a serious problem?


2 posted on 05/17/2024 1:59:32 AM PDT by Nervous Tick ("First the Saturday people, then the Sunday people...": ISLAM is the problem!)
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To: Nervous Tick

No I don’t.
However, I still support developing technologies that can reduce our energy usage by shifting it over.

I have no problem with developing solar or wind or or renewables and using them where they work, but only if they can be made to work. I support honesty in the industry.


3 posted on 05/17/2024 2:10:10 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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To: Jonty30
Don't know how to check the numbers, but this could give some poorest places in the world a chance to escape poverty.

Maybe instead of Somalian pirates there will be Somalian steel smelters.

4 posted on 05/17/2024 2:25:11 AM PDT by Krosan
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To: Jonty30

>> I still support developing technologies that can reduce our energy usage by shifting it over. I have no problem with developing solar or wind or or renewables and using them where they work, but only if they can be made to work. I support honesty in the industry.

I support those things too — with this exception:

PRIVATE MONEY ONLY. No taxpayer subsidies for developing “alternative energy”. If “alternative energy processes” benefit the industry to the extent that the industry is willing to fund the engineering out of its own pocket, go for it.

But the fact is — energy for making steel is a solved technical problem. Fossil fuel, especially coal, is plentiful and over the years its use in making steel has become “cleaner”. (Climate change is not a real problem, but air pollution is a real problem, mostly a solved one.)

Therefore it’s not likely that a steel industry interested in making the best steel for its customers at the lowest cost would spend money on solar heating, absent taxpayer-funded government incentives to do so.


5 posted on 05/17/2024 2:28:43 AM PDT by Nervous Tick ("First the Saturday people, then the Sunday people...": ISLAM is the problem!)
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To: Jonty30
This is anything but environmentally friendly...


6 posted on 05/17/2024 2:34:41 AM PDT by maddog55 (The only thing systemic in America is the left's hatred of it!)
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To: Nervous Tick; null and void; Red Badger

(Swiss researchers have developed a solar energy method using synthetic quartz to achieve temperatures above 1,000°C for industrial processes)

I think this is fantastic news. 📰📰📰

Does this mean that I can FINALLY soften those little marshmallows in my Swiss Miss?

☕☕☕


7 posted on 05/17/2024 2:37:20 AM PDT by SaveFerris (Luke 17:28 ... as it was in the Days of Lot; They did Eat, They Drank, They Bought, They Sold ......)
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To: Jonty30

Is the environmental impact of creating synthic quartz greater than using fossil fuels?

Steel is made of carbon. Cement is made of carbon.

We live in a carbon world.


8 posted on 05/17/2024 2:37:52 AM PDT by moviefan8 (The noblest art is that of making others happy. - P.T. Barnum)
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To: maddog55

So how many people are needed to keep the mirrors clean? Deserts are kinda dusty places.


9 posted on 05/17/2024 2:38:46 AM PDT by OHPatriot (Si vis pacem, para bellum)
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To: maddog55

Tell ya what, that thing can grill a hotdog 🌭🌭🌭 like nobody’s business.

Just be very, very careful when you go to pick it up. 🙃


10 posted on 05/17/2024 2:39:30 AM PDT by SaveFerris (Luke 17:28 ... as it was in the Days of Lot; They did Eat, They Drank, They Bought, They Sold ......)
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To: Jonty30

Solar is not environmentally friendly.


11 posted on 05/17/2024 2:39:56 AM PDT by moviefan8 (The noblest art is that of making others happy. - P.T. Barnum)
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To: moviefan8

That’s an engineering problem.

Unless we cannot move atoms around on a technology to make it better, it all comes down to engineering.


12 posted on 05/17/2024 2:42:13 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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To: Nervous Tick

I generally agree with you. If a private business develops it, it is their technology to sell and make a profit on it.


13 posted on 05/17/2024 2:42:49 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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To: maddog55

That’s an enginnering problem. How it is today, does not mean it has to be that way over time as the technology advances.


14 posted on 05/17/2024 2:43:35 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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To: moviefan8
"We live in a carbon world."

Aaaand, WE are carbon-based creatures. (And Carbon Dioxide is essentially plant food).

So, carbon isn't bad?

15 posted on 05/17/2024 2:47:39 AM PDT by Psalm 73 ("You'll never hear surf music again" - J. Hendrix)
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To: raygunfan; Gamecock; Larry Lucido; FredZarguna; PROCON; KC_Lion; Rebelbase; gundog; Kenny Bania

I liked “Tropic of Cancer” better than “Tropic of Capricorn” ... wait, did I return that book? I thought I did.


16 posted on 05/17/2024 2:49:51 AM PDT by SaveFerris (Luke 17:28 ... as it was in the Days of Lot; They did Eat, They Drank, They Bought, They Sold ......)
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To: Jonty30

“To tackle climate change, we need to decarbonize energy in general,”

Blows his credibility.

This is probably not going to pan out.


17 posted on 05/17/2024 2:54:24 AM PDT by ifinnegan (Democrats kill babies and harvest their organs to sell)
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To: ifinnegan

The only way to decarbonize completely is to either nuclearize or use sources of energy that doesn’t have carbon, like powdered metals.


18 posted on 05/17/2024 2:56:38 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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To: Nervous Tick

That is a very good question. Another question is: There was, is, and always will be climate change, but is it currently man made or not, and is it harmful? Ok, two questions. I’m not so sure that the earth is warming, it seems the alarmists post pictures of glaciers melting, but not the ones growing, so there is plenty of room for doubt. Also, what does synthesized quartz cost, and how is it made? I could see where this could be a plus if it’s cheap enough and easy enough to be made, and getting the ingredients doesn’t harm the environment. It would cut down on the exhaust of furnaces which is not the best to breath, and really doesn’t look so great.


19 posted on 05/17/2024 3:00:15 AM PDT by Omnivore-Dan
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To: Omnivore-Dan

There is also that, if we can generate energy through other means, then it allows hydrocarbons to be used where they work best.

I will just give you a hypothetical world of my own to illustrate what I mean.

Nuclear power for the homes. Solar power for industrial uses, like in this article. Hydrocarbons for vehicles.

Or, if hydrocarbons have higher value than being used for fuel then would be better.

Creating an optimized world does not mean being a crazed environmentalist who thinks killing off 95% is necessary to bring balance.


20 posted on 05/17/2024 3:07:40 AM PDT by Jonty30 (He hunted a mammoth for me, just because I said I was hungry. He is such a good friend. )
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