Science Questions

Could we use our body heat to generate electricity?

Sun, 12th Feb 2012

Listen Now    Download as mp3 from the show Reclaiming Wasted Watts - Thermoelectric Generators

Question

Graeme Bartlett asked:

Could we use TEGs to generate electricity from human body heat?

Answer

Andrew -   Yes, that is quite possible.  Humans are 30-35 degrees C versus the ambient temperature of maybe 20-25 degrees C.  A small temperature difference is sufficient to generate a small amount of power and electronics are getting more and more efficient; we are now down at microwatt level for various things.  So yes, you could quite feasibly have human powered electronics using TEGs as the mechanisms for that power.

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its called bioelectric energy Livewire, Tue, 21st Feb 2012

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