Editing Talk:2790: Heat Pump
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:::::The difference between ice-cooling and heat-pump cooling is that ice (outwith the freezer that created it) is a one-shot thing. It can equalise then does nothing more (you've just got a watery whisky, and personally I prefer it neat/as-poured anyway). The heat-pump uses a solid-state (peltier?) or closed-loop (refrigerant) mechanism to make one end of it cooler than the cool environment (heat energy goes towards that) and the warm end warmer than the warm environment (heat energy moves on out of that) without breaking the law that sould otherwise never allow the cool end to ''spontsneously'' give more jeat to the hot end than the hot would like to give to the cool end. Compression of a gas warms it (same heat, less volume, higher temperature), expansion of a gas cools it (same heat, more volume, lower temperature). Add the forcing of phase-change to the mix, in just the right way, and heat energy is made even more mobile (drawn in, radiated out, and transferable betwixt the two sides by advection/otherwise). [[Special:Contributions/172.71.178.30|172.71.178.30]] 11:18, 25 June 2023 (UTC) | :::::The difference between ice-cooling and heat-pump cooling is that ice (outwith the freezer that created it) is a one-shot thing. It can equalise then does nothing more (you've just got a watery whisky, and personally I prefer it neat/as-poured anyway). The heat-pump uses a solid-state (peltier?) or closed-loop (refrigerant) mechanism to make one end of it cooler than the cool environment (heat energy goes towards that) and the warm end warmer than the warm environment (heat energy moves on out of that) without breaking the law that sould otherwise never allow the cool end to ''spontsneously'' give more jeat to the hot end than the hot would like to give to the cool end. Compression of a gas warms it (same heat, less volume, higher temperature), expansion of a gas cools it (same heat, more volume, lower temperature). Add the forcing of phase-change to the mix, in just the right way, and heat energy is made even more mobile (drawn in, radiated out, and transferable betwixt the two sides by advection/otherwise). [[Special:Contributions/172.71.178.30|172.71.178.30]] 11:18, 25 June 2023 (UTC) | ||
::::::Looks like you used a lot of words to say in detail the same thing I did, LOL! The thing is, my ice cube comparison isn't perfect, it was simply to illustrate what I was speaking of: the equalization of temperature by application of a source of cold. You mentioning watery drinks is rather off-topic, that's not actually a part of the temperature transfer, it's merely a side-effect of it, it's what happens when ice warms up. My point is that I was describing a "powered ice cube", i.e. one which remains immune to the temperature change, it doesn't get warmer, DOESN'T result in water, etc. [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 03:53, 9 July 2023 (UTC) | ::::::Looks like you used a lot of words to say in detail the same thing I did, LOL! The thing is, my ice cube comparison isn't perfect, it was simply to illustrate what I was speaking of: the equalization of temperature by application of a source of cold. You mentioning watery drinks is rather off-topic, that's not actually a part of the temperature transfer, it's merely a side-effect of it, it's what happens when ice warms up. My point is that I was describing a "powered ice cube", i.e. one which remains immune to the temperature change, it doesn't get warmer, DOESN'T result in water, etc. [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 03:53, 9 July 2023 (UTC) | ||
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Technically, it's not the ''ideal'' gas law in play, since air isn't an ideal gas, and the system would behave similarly for closer-to-reality gas behaviour models. But I can't think of a good way of modifying the article to reflect that. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 16:04, 18 June 2023 (UTC) | Technically, it's not the ''ideal'' gas law in play, since air isn't an ideal gas, and the system would behave similarly for closer-to-reality gas behaviour models. But I can't think of a good way of modifying the article to reflect that. [[User:BunsenH|BunsenH]] ([[User talk:BunsenH|talk]]) 16:04, 18 June 2023 (UTC) |