Quote:
Originally Posted by Piwoslaw
Using PCMs to store engine heat has been researched Schatz heat battery.
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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.