Quote:
Originally Posted by dcb
you can delete the thermostat with the right control scheme, thermostat is basically a large pumping loss most of the time. The mechanical pump has to work against the thermostat most of the time. An electric pump only has to pump hard enough to keep the temperature correct.
install a more efficient / smart alternator and the electric options get more efficient overall. Direct drive vs belt driven would also help.
options like adding a thermos bottle to store hot coolant for later get much simpler with an electric pump.
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I dunno... pumps and fans draw the most power when they are moving the most fluid. Yes, it seems counterintuitive. Try running a box fan, then throw something against it that blocks the air- it speeds up! If it speeds up, the motor is seeing less load. Do the same thing with a shop vac. Or a sump pump. They all react the same way. So if there's a restriction in an auto cooling system, it should serve to reduce load.
I've long wanted direct drive for accessories though. And a thermos bottle.