4 ms·
Peltier effect generates spatially-separated hot and cold sides. Electrocaloric effect generates temporally-separated hot and cold periods. The Peltier effect i
by addaon 3y ago
Peltier effect generates spatially-separated hot and cold sides. Electrocaloric effect generates temporally-separated hot and cold periods. The Peltier effect is simpler to harness into a refrigeration unit (put the cold stuff on the cold side, dissipate heat from the hot side), but has lower potential efficiency.
- mitthrowaway2 3y agoNow we just need to combine it with thermal transistors* on the front and back sides to gate and pump the heat in one direction. Conduct -> Cool -> Insulate -> Heat -> Conduct -> Cool... (while doing the opposite on the heat-sinking side, of course) (*from 3 weeks ago on HN) https://news.ycombinator.com/item?id=38259991 https://news.ycombinator.com/item?id=38259991
- westurner 3y agoPerhaps a black hole could do some of the Heat phase, at least. From https://news.ycombinator.com/item?id=38450636 https://news.ycombinator.com/item?id=38450636 : "Using black holes as rechargeable batteries and nuclear reactors" (2023) https://arxiv.org/abs/2210.10587 https://arxiv.org/abs/2210.10587
- araes 3y agoThank you. That's a clear description. I read through that whole article and still was not sure why it was not a Peltier cooler with oil flowing around.