Can Body Heat Power an Artificial Heart?

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The discussion centers around the feasibility of using body heat to power an artificial heart through nitinol muscle wire, which requires heating to approximately 70 degrees Celsius to function effectively. The idea involves constructing a heat exchanger that could concentrate body heat into a smaller area to achieve the necessary temperature. However, the initial query raises doubts about the practicality of such a heat exchanger. An alternative suggestion is the use of induction heating to achieve the desired temperature for the nitinol wire. Additionally, there is concern about the potential for increased blood temperature due to heat dissipation and whether a liquid cooling system could effectively manage this without adversely affecting the body. The conversation explores innovative methods for harnessing body heat and the challenges associated with maintaining safe temperature levels.
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Powering and artificial heart??

Is there any way that one can construct a heat exchanger that concentrates the energy from heat into a smaller space? Eg a big plate at a certain temperature which concentrates heat into a higher temperature in a smaller area. I'm thinking not. If you can't, is there something like a solar panel that can create electricity directly from heat?

What I'm thinking of is a way that you can use a persons body heat to heat nitinol muscle wire to power an artificial heart. The wire needs to be able to heat to 70 odd degrees C to spring back to it's original shape, so if you stretch it for example and apply heat, it will shrink back to it's original length.

Also, would it be possible to bring the temperature of the wire back down using some sort of internal liquid cooling system or would the disipationof heat increase your blood temperature too much?

Any ideas??

Raavin [?]
 
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