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Butcher · 04-11-2003, 09:38 AM

Size has little relevance to cooling power. A 40mm TEC could be anything from 10W to 172W. The easiest way to get a rough estimate is to power one up and read how much current it draws, then multiply by voltage*0.7 to get a rough estimate of the cooling power of the TEC. You should test at around 12-15V to get a reasonable reading.
So for instance if you power up at 12V and get 20A current draw. You can do 12*20*0.7 = 168W. And that's roughly the cooling power of your TEC.

04-11-2003, 09:38 AM	#4
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	Size has little relevance to cooling power. A 40mm TEC could be anything from 10W to 172W. The easiest way to get a rough estimate is to power one up and read how much current it draws, then multiply by voltage0.7 to get a rough estimate of the cooling power of the TEC. You should test at around 12-15V to get a reasonable reading. So for instance if you power up at 12V and get 20A current draw. You can do 1220*0.7 = 168W. And that's roughly the cooling power of your TEC. __________________ Once upon a time, in a land far far away...