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Peltier device as TEG

post #1 of 6
Thread Starter 
Hi,

I considered using a thermoelectric module as Thermoelectric Generator (TEG) to generate a small power which then can be used for charging batteries. But I suppose this is too complicated because the temperature has to be controlled perfectly and the practical design in general seems very sophisticated and complex. Right?

What is the minimum difference in temperature you need between the 2 sides for battery charging, any average value?
post #2 of 6
This question has been asked before, TEC can be used as TEG's but you would need to have a massive ∆t, if you could keep the one side at -100c and the other side at 100c then you could start to think about getting a decent current from them.

As for charging battery's, it cannot be done.

Battery charger's have voltage regulator's amongst other thing's, the ∆t would also have to be kept the same, down to the degree.
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post #3 of 6
Thread Starter 
This proofs it is possible, or isn't it?

http://www.poweredbythermolife.com/p...M_Overview.ppt

What do you mean with 'a massive ∆t' ?
post #4 of 6
If that link doesnt work try>>>
http://www.poweredbythermolife.com/
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post #5 of 6
The deltaT or ∆t is the difference in temperature between the hot and cold side.
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post #6 of 6
I think tat the Heat Sink temperature is also considered while measuring Thot
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