Heat waves and heat plumes in France: 50°C expected in 2026?

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Christophe
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by Christophe » 13/09/22, 17:05

GuyGadeboisLeRetour wrote:
Christophe wrote:
GuyGadeboisLeRetour wrote:(aka Imhotep)


??

Imhotep was a man of multi-talented. Vizier and architect of King Djoser, it is also said doctor and philosophe.

Yes ok that's fine with me! : Mrgreen:

natural-human-disasters/tension-with-russia-in-ukraine-t17111-3950.html?hilit=Imhotep#p509967
: Mrgreen: : Mrgreen: : Mrgreen:


He has to stop sniffing the old dried mummy... : Mrgreen:
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GuyGadeboisTheBack
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by GuyGadeboisTheBack » 06/10/22, 16:53

Towards a world with fewer air conditioners?
The whitest paint that has ever been able to block solar radiation and cool the earth
It could make your air conditioner obsolete.


The whitest new paint blocks 98,1% of sunlight and saves up to 10,5 degrees Celsius.
The paint is made with barium sulfate, an additive used in paper and makeup.
The material is mixed with a normal-looking one-coat paint.

Purdue University engineers made the paint, which consists primarily of barium sulfate, a compound used in cosmetics and ultra-white paper products. Barium sulfate is extremely reflective, and that's the key to making everything white: it needs to reflect as much light as possible, rather than absorb it, like the ultra-black Vantablack paint product.

The special thing about this ultra-white paint is that barium sulphate is also included in different particle sizes, which means more unpredictable surface coverage that reflects even more light.

"If you were to use this paint to cover a roof area of ​​about 1 square feet, we estimate you could get 000 kilowatts of cooling power", Purdue Professor Xiulin Ruan said in a statement. "It's more powerful than the central air conditioners used by most homes."
https://www.popularmechanics.com/scienc ... -sunlight/

University papers:
https://www.purdue.edu/newsroom/release ... ally..html
https://www.purdue.edu/newsroom/release ... dings.html

And what's more, it's not expensive and you could do this kind of paint yourself by using it as an additive in so-called standard coatings:
https://www.mon-droguiste.com/sulfate-baryum.html (3.75 euro/kg)
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Christophe
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by Christophe » 07/10/22, 13:29

These stupid Americans had, a few years ago, started painting their roads in certain cities with this kind of paint...I think it was in California...cation!

Otherwise we can plant trees...
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GuyGadeboisTheBack
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by GuyGadeboisTheBack » 07/10/22, 15:19

Christophe wrote:Otherwise we can plant trees...

Or paint your dog's kennel so it's less hot in the summer... or beehives, or... : Mrgreen:
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phil59
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by phil59 » 07/10/22, 17:35

On the ground under the "transparent" solar panels, to produce even more, it's already underway...
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hmmmmm, hmmmmmmmmmmmmm, hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhmmmmmmmmm, huh, hmmmmmmmmmmmmm.

: Oops: : Cry: :( : Shock:
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by Remundo » 07/10/22, 19:07

painting in white is well known and some towns in hot countries have chosen white for the facade.
https://www.decouvrirlagrece.com/pourqu ... -blanches/

on the other hand on the roofs it is to be seen... because it gets dirty. It would therefore be necessary to paint rather smooth and "washable".

recently a range of white tiles is offered by some manufacturers
https://www.archiexpo.fr/fabricant-arch ... 42049.html

but it is not allowed in all municipalities,

moreover with gas shortages, the tiles are more expensive, and wait longer.
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gegyx
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Re: Heat waves and heat plumes in France: 50°C expected in 2026?




by gegyx » 07/10/22, 21:58

I think above all that the pb would come from motorized aerial navigation.
The gliders would be very happy...

Go put aluminum foil on your tiles...
Already, less than 5G : Cheesy:
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