Posted on 12/27/2022 11:59:51 AM PST by Red Badger
modern day ice cream churn?
I bet these guys never heard of a swamp cooler either
I made a ghetto 5gal bucket evap cooler and dumped
Salt on the ice long long ago
Why bother? If it works, once it’s mass produced, it’ll become the new evil…
ethylene carbonate:toxic and hazardous:
https://fscimage.fishersci.com/msds/09022.htm
converts to ethylene glycol if consumed, which is EXTREMELY toxic to kidneys even in very small amounts ...
“Though technically, the salt does not melt the ice, its dark color attracts heat, allowing the ice below it to melt, which than allows the salt to mix with the water. And it does not refreeze because the salt dramatically lowers the freezing point of the water.”
Maybe someone can help me. So I can bite that ice can only lower the freezing point of liquid water and not already frozen water, but how does salt have a “dark color” that is so dark, it attracts heat, over the whiteness of ice and snow? I see salt as white to clear, so what is going on?
road ice..................
sodium iodide (NaI) salt
ethylene carbonate
Isn’t this this similar premise for a DC battery that is using the difference in chemical potential and then returning it with electro-mechanical energy?
bkmk
I see salt as white to clear, so what is going on?
= = =
You might be a white supremacist, and don’t recognize that white IS black, absorbing heat (and adding to global warming also).
Perhaps, salt crystals can absorb solar heat while the frozen show rejects it. I wouldn’t call that ‘dark color’. Perhaps a real scientist can clarify.
So, then...
...my next fridge will work half as well as the last one (which worked half as well as that preceding it)?
/s
I’m a big fan of hydrofluorocarbons.
They’ve made my life better in so many ways.
Hopefully I’ve stockpiled enough to last the balance of my life.
R-11, R-22, R-134
Environmetally friendly? Perhaps. But it still uses electricity which will be increasingly in short supply as more coal plants get shut down. Under the currenr regime, this tech is a non-starter.
“Isn’t this this similar premise for a DC battery that is using the difference in chemical potential and then returning it with electro-mechanical energy?”
The cooling is via the phase change. A DC voltage provide for the transfer of the salt ions.
“I bet these guys never heard of a swamp cooler either
I made a ghetto 5gal bucket evap cooler and dumped
Salt on the ice long long ago”
That is not a swamp cooler. A swamp cooler cools via evaporation of liquid water not the melting of ice,
That part is bullshit, IMO. Road salt works at night ...I'm not totally clear on how road salt gets started, but the liquid brine around the salt crystal seems to dissolve the ice surrounding it. A salt crystal on solid ice will melt a hole down through it. It seems to work better on traveled roads where traffic churns it up than on a driveway.
Also, a swamp-cooler works best in very low humidity. I rarely see them other than in deserts.
This statement bothers me: “approximately as efficient as refrigerators now on the market.”. If the efficiency was better they would be screaming that number from the rooftops. Based on that alone, we can assume it’s less than current refrigerators. Just how less is the key. Since this article cherry picked data and showed a spiffy schematic of the cycle they are hiding the real efficiency.
Lawrence Berkely National Laboratory salt comes from San Fraqncisco where everything is covered with dark filth.
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