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Heatpipes and the BT

post #1 of 7
Thread Starter 
I just did some reading here

http://www.heatsink-guide.com/heatpipes.shtml

It seems that unless a heatpipe is some semblance of vertical, it is all but useless. From my understanding, even a high quality heat pipe w/ the best internal capilary material is vulnerable to this.

Taking this into account, how "good" is the BT? In an upright tower? 50% utilization?

I'm just looking for some more educated opinions. And yes, i do realize "if it works it works"... but i'm just trying to get my mind around it.

thanx guys for any input
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post #2 of 7
look at it this way(if you want), high pressure moves to low pressure. Hot fluid displaces cold fluid. Why? because hot fluid emits less pressure,cold fluid emit more pressure, and high pressure move to low pressure(for the 2nd time). so even if the pipes are horizontal, the heated fluid moves to the fins through displacement.
EDIT:atleast thats how i understand it.
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post #3 of 7
Im not sure if you know, but heat pipes have a wick inside draws the cold liquid back to the hot part of the cooler so a heat pipe cooler can be mounted any way around.

But i do get your point about gravity playing its part in this cycle, i did a few small tests on my PC and found no real diffrence if i had my PC standing or lying down.
    
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post #4 of 7
yea, he said best internal capillary.
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post #5 of 7
Some heatpipes need to be upright to work properly, but some (like the ones used in the BT) have an internal wick as cokker mentioned. The BT is the second best aircooler around, second to the Tuniq tower 120.
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post #6 of 7
Quote:
Originally Posted by willhoy
even a high quality heat pipe w/ the best internal capilary material is vulnerable to this.
displacment.
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post #7 of 7
Thread Starter 
Thank you all for your wisdom. Good points Blue. After re-reading that material, I realize that orrientation is not the end all. With better capillary structure, gravity is at least to some degree, overcome.

Thanks alot again for helping me get my mind around it. :withstupi
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