Quote:
Originally Posted by Josh8loop
For the guys with the diesel engines, one could insulate the fuel tank, use a heat pipe setup to add heat to the fuel tank from the coolant system and store the heat there. A heat pipe setup with a clever working fluid displacer could be used to essentially turn off the export of thermal energy from the tank when the engine is turned off.
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Just dumping the heat into the fuel tank half the problem. You need a way to move that heat back to the engine just before starting, but not too much as your fuel will get too cold.
Plus your heat capacity will vary with the amount of fuel onboard.
Plus diesel shouldn't get too warm, I think 55°C (130°F) is the limit. That's why turbodiesels have a radiator on the fuel line returning to the tank.
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e·co·mod·ding: the art of turning vehicles into what they should be
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