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Originally posted by Lavindathar:
It's idiotic.
How can people think this will work? It's basic physics. I'm an engineer, trust me. If that computer is left on any length of time, it'll fry.
Yes it will be quiet, but it'll fry.
The oil will retain the heat. There is no way for the heat to dissapate. It's like having a car without a radiator. It's stupid.
There is no oil flow to help with cooling either, the oil sits there motionless. It needs passing over a cold surface so heat exchange can take place, removing the heat from the oil.
Sorry, but im laughing at those of you who actually think this works.
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I guess you've never heard of
a) cars without radiators (VW bug and Porche 911 prime examples)
b) convection cooling
This works. The oil cools itself with convection airflow across the top of the oil. The oil cools the parts by convection flow across the hot parts. (you can see this in the video - look at the "heat waves" moving in the oil)
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I imagine on this test, that he didn't do anything constructive with it.
I reckon yes, a PC could run the OS for 48 hours. It won't have done anything else useful.
Play Oblivion on it, I reckon it will last 15mins. Most games it'll fry within the hour.
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They ran 3Dmark05 - that stresses the machine as much as Oblivion or any other game.
BTW, thermal equilibrium was reached at 40C - that is to say, when the temperature reached 40C it didn't rise any further. This is better than my machine running with enhanced cooling - it runs at 45C.
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And no, fans won't work. You can't place a fan inside the "tank" as if you fix it at the top it will only cool the top. The heat rising from the parts will negate this. And still the bottom will fry.
You can't place fans inside the tank at the bottom, as you'll just churn oil around. No heat dissapating.
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Fans won't work, but not for the reasons you specify. Fans won't turn very fast in fluid when they're designed to turn in air - too much drag. This will ramp the current requirements up significantly. In fact it will behave much like a short circuit and the fans will likely burn out.
In fact, if you'd read the article you'd know all these things.
Tell me, Mr.Engineer man:
1) how many watts does the computer in the article dissipate?
2) What is the limit (how many watts) can oil cooling dissipate to air without a radiator?
Demonstrate how the answers invalidate the experiment shown on Tom's Hardware.
Provide proof, not conjecture.