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Old 07-04-2011, 08:00 AM   #8 (permalink)
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Originally Posted by Piwoslaw View Post
Using PCMs to store engine heat has been researched Schatz heat battery.
Thanks for the link to the previous EM discussion on these materials.
From the way I see it the simple way get the engine up to normal temp quickly is to use an exhaust heat-exchanger. I don;t suppose it takes much longer that using a thermos or a PCM, but it's got to be more simple and less bulky/lighter.

What can't be done any other way is allow for a smaller radiator opening (ignoring adjustable grill blocks). Using a PCM as an intermediate heat-sink should, under all but the most extreme driving-cycle situations, result in the need for a substantially smaller radiator and its aero penalty.
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