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-   -   Using thermocouples to offset alternator load (https://ecomodder.com/forum/showthread.php/using-thermocouples-offset-alternator-load-99.html)

MetroMPG 11-28-2007 09:54 AM

Using thermocouples to offset alternator load
 
The topic of generating electricity with thermocouples comes up in the alternator-less threads.

So here's a link sent to me by a metrompg.com visitor that outlines quite an interesting test done with a professionally built thermocouple unit that uses both exhaust gas and coolant heat. It was fitted to a GM pickup and tested on a dynamometer:

http://mithril.camp.clarkson.edu/~helenbrk/Research/JoAE_AETEG_test.pdf

mopo3 09-06-2008 04:25 PM

The link doesn't work anymore. Too bad I was interested in doing this to my Saturn.

vtec-e 09-06-2008 04:42 PM

I wonder why it doesn't work anymore?...........maybe it worked too well....

ollie

mopo3 09-07-2008 12:18 PM

I bought a peltier heat pump from American Science & Surplus : Search Results

I've been trying to use old computer heat sinks and the exhaust manifold to generate electricity. So far I've been fairly unsuccessful. I have gotten some amps but not much, the problem is that the pump is flat and the exhaust is round. 2 things would help, a pipe shaped pump and higher Seebeck coefficient which can be achieved by using bismuth telluride instead of copper and aluminum.


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