Quote:
Originally Posted by deathtrain
personally I dont see this working at all. but haveing a positive attitude to anyones ideas and willingness to try it. if I read this right the bigger the heat differance the higher the out put. OK heat side against the exhaust right we get that. How about installing a CPU heat sink (with out fan) on the coolside. then it will "air cool" while the car is moving.
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Re. the heatsink for the TEG's cold-side: if the car is at low speed or stationary, the devices are likely to become even less efficient without some forced air (like a fan) - because the thermal differential across the device will shrink if the heat isn't removed effectively.
I should add:
Maybe my exploring a 'best' setup implied I -do- think these devices would work ... I don't. At least I think the cost would mean a payback about 10 times the life of the car! Give it another decade for the tech to improve, I reckon.
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The best way to recover power from the exhaust is not to make so much of it in the first place by fitting an Atkinson cycle engine!
