Another question about auto exhaust heat recovery
Posted: Fri Sep 02, 2005 8:00 pm
I saw the question wether it was doable to run a Stirling engine off of auto engine heat to
produce eletricity and saw the answer that there probably wasn't enough heat to
economically produce the electricity. But what if you increased the temperature differential
by means of a system that could rapidly evaporate a liquid (like water or alchohol) that
would in turn dramatically decrease the temperature using the wind turbulence generated
by the movement of the car. Couldn't some sort of small patch on the side of the car have
a fabric that would refill using capillary action connected to a resevoir of water that could
be refilled every so often that would dramatically cool the cool side of the Stirling engine
when the car gets up to speed and starts rapidly evaporating the water? Could this
increase the efficiency of the Stirling for this application? Just a thought. Thanks!
produce eletricity and saw the answer that there probably wasn't enough heat to
economically produce the electricity. But what if you increased the temperature differential
by means of a system that could rapidly evaporate a liquid (like water or alchohol) that
would in turn dramatically decrease the temperature using the wind turbulence generated
by the movement of the car. Couldn't some sort of small patch on the side of the car have
a fabric that would refill using capillary action connected to a resevoir of water that could
be refilled every so often that would dramatically cool the cool side of the Stirling engine
when the car gets up to speed and starts rapidly evaporating the water? Could this
increase the efficiency of the Stirling for this application? Just a thought. Thanks!