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Originally Posted by Belenar
How about using a temperature based fan speed controller (or alike system) and change that to increase/decrease the voltage on your TEC's based on the water temp?
I don't know how possible that is or how hard, but I would definitely consider that if I were aiming for a test bench setup...
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Seems simple eh?
google variable peltier controller. I wouldnt mind one of their setups If it worked at 5v. May work out for your testing though. I think running three 26v TECs in series off of a 24v PSU through one of those controllers would be an excellent option.
http://mcshaneinc.com/html/5C7-350.htm
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I was thinking about using a 12VDC pump such as the MCP350 or the C System Mag and using a fan controller to very the speed of the pump..
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Thats what I would do.l