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airspirit · 07-12-2002, 04:16 PM

The funny thing is the folks that say "the water is cooling the pump, but the pump is heating the water!?!?! WHY IS THAT!?!?!?"

People like that give me a kick, though I doubt you'd find any here. You have to be at least somewhat savvy to even ATTEMPT this kind of monstrosity in your machine.

Anyway, since water wicks heat so much better than air, I would guess, with neutral airflow, on most pumps I've seen you'd get about 40-60% transmission to the water (remember, the air in your case isn't usually the coolest in the world). With a fan blowing across the pump, you can probably shave off about another 10% if the air you're blowing is colder than the water passing through it.

That is all estimates, and could bear some testing, but I'm pretty sure I'm hitting it with about a 10% margin of error, and if anything, that 10% would be going to the water. Remember also, the motor is directly behind the impeller housing and is usually thinner than the housing itself.

07-12-2002, 04:16 PM	#14
airspirit Been /.'d... have you? Join Date: Jul 2002 Location: Moscow, ID Posts: 1,986	The funny thing is the folks that say "the water is cooling the pump, but the pump is heating the water!?!?! WHY IS THAT!?!?!?" People like that give me a kick, though I doubt you'd find any here. You have to be at least somewhat savvy to even ATTEMPT this kind of monstrosity in your machine. Anyway, since water wicks heat so much better than air, I would guess, with neutral airflow, on most pumps I've seen you'd get about 40-60% transmission to the water (remember, the air in your case isn't usually the coolest in the world). With a fan blowing across the pump, you can probably shave off about another 10% if the air you're blowing is colder than the water passing through it. That is all estimates, and could bear some testing, but I'm pretty sure I'm hitting it with about a 10% margin of error, and if anything, that 10% would be going to the water. Remember also, the motor is directly behind the impeller housing and is usually thinner than the housing itself.