6 ms·
Pipes, steam, turbines... We need better peltier devices.
by swayvil 1y ago
Pipes, steam, turbines...
We need better peltier devices.
- tipidNasuada 1y agoI thought exactly the same thing. Peltier's themselves don't really have a pathway for becoming as efficient as steam turbines but there are other methods currently in research. One promising idea is to use sodium vapor in a fuel cell style device: http://dx.doi.org/10.1016/j.jpowsour.2017.10.022 http://dx.doi.org/10.1016/j.jpowsour.2017.10.022
- quickthrowman 1y agoThe maximum COP for a peltier device is 1, in practice it’s far below that. Heat pumps go way beyond a COP of 1; an open-loop cooling system with an evaporative cooling tower can have a COP of 7. A closed loop heat pump alone can have a COP of 4. Peltier devices are a dead end for moving heat around outside of specialized applications where you can’t drag around two heat exchangers, a valve, and a pump (like active cooling clothing). It’s impossible for them to even approach the efficiency of resistive heating (COP of 1).
- swayvil 1y agoThe aim here is to get power from temperature differential, not vice-versa