3 ms·
Ammonia tends to outperform water, but it's toxic. I believe it was used in some of the first refrigeration applications (and I think Einstein had a patent rela
by bumby 2y ago
Ammonia tends to outperform water, but it's toxic. I believe it was used in some of the first refrigeration applications (and I think Einstein had a patent related to one).
- anfractuosity 2y agoI came across potassium nitrate + water being used for making things cold - https://cordis.europa.eu/article/id/36036-making-things-cold-a-history-of-science-technology-and-culture https://cordis.europa.eu/article/id/36036-making-things-cold... . Wonder if that could be used too?
- jaclaz 2y agoAbsorption refrigerator: https://en.wikipedia.org/wiki/Absorption_refrigerator https://en.wikipedia.org/wiki/Absorption_refrigerator Einstein refrigerator: https://en.wikipedia.org/wiki/Einstein_refrigerator https://en.wikipedia.org/wiki/Einstein_refrigerator The principle is still used in some refrigerating devices (typically hotel mini fridges and similar small units for RV's) as there is no need of a compressor (i.e. the device is completely silent) and also in some HVAC machines.
- dogma1138 2y agoWe aren’t talking about regurgitation but rather about heat transfer. Ammonia has lower heat capacity than water, and it’s nasty.
- bumby 2y ago>Ammonia has lower heat capacity You’re probably confusing gaseous ammonia, but the GGP said “of all liquids.” Liquid ammonia has a higher heat capacity than liquid water. Refrigeration is just an engineering application of the heat capacity of a working fluid (and I’ll let you guys why some of the earliest heat pumps used ammonia) >it’s nasty I clearly stated toxicity as an obvious downside.