Seebeck effect?

CTho9305

Elite Member
Jul 26, 2000
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Is there a limit on the efficiency of a device when being used to convert a temperature difference to electrical power (seebeck effect)? I can only find information on the voltage generated, not current available.

How much power (V*I) can you get out of a temperature difference of x degrees, which is maintained by a system capable of moving heat from the cold side to the hot side at a rate of y watts? (Obviously if your peltier conducts heat faster than the sytem generates the difference, you're going to hit a limit pretty quickly, so we'll assume that you don't do that.)
 

sgtroyer

Member
Feb 14, 2000
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I'm ignorant of the specifics, but obviously it can't be any more than 100% efficient. So you know the power output can't exceed (or reach) y watts. I would guess that there aren't theoretical limitations to approaching 100% efficiency, just engineering limitations, but, as I said, I don't really know much about this specific effect.