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I'm looking for existing products (including prices) that convert heat energy into electrical.. Answered

Much apreciated :)
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kelseymh
kelseymh

8 years ago

Google is your friend.

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steveastrouk
steveastrouk

Answer 8 years ago

DON'T use that expression, it get Lemonie cross.

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steveastrouk
steveastrouk

Answer 8 years ago

Given his nickname, one would expect a more lemony appearance than that....

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kelseymh
kelseymh

Answer 8 years ago

Thank you, Google Images, you're my friend!

1063613-yellow31_super.jpg
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steveastrouk
steveastrouk

Answer 8 years ago

Wow ! He looks JUST like that ;-)

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rickharris
rickharris

8 years ago

A thermocouple does just that.

Essentially 2 different material wires twisted together will produce electricity from a heat source.

Not a very efficient way to do it unless the heat of free.

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bwrussell
bwrussell

8 years ago

How much heat are you talking? How much voltage are you looking to get out of it? What you want is the peltier unit like mpilch posted. The issue with these is that you have to have a pretty large delta T to get a usable voltage. People place these on the exhaust manifold of their motorcycles, which are exposed to the wind for even greater temp differential, and are able to generate just enough voltage to charge a phone, around 5 v. If you can find a peltier unit specifically designed as a Seebeck generator it will be more efficient at generating electricity than a unit designed for heating or cooling, if that makes any sense.

Just to clarify, these units work because of a temperature differential from one side to the other not on heat alone. Placing one in an oven will not generate any electricity. The greater the difference between the temps the more electricity can be generated.