Old Aug 16, 2005 | 10:52 AM
  #68 (permalink)  
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Ian MMF
Omnipotence
 
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Originally Posted by Orion ZyGarian
What the hell kind of question is that? I hope you are joking too.

Anyways, igloos arent white/painted white, and since they disapate heat the quickest they stay cold and together longer...but theres a-lot-more to it than that

Missed you whore, whereve you been?
Working on my car.

And igloos are made to keep the heat in and the cold weather out. You need to move to alaska.

Here is an example maybe you can understand.


Does heatsink color affect heat dissipation?

Black is the best thermal body in terms of being a absorber or emitter. Let's assume a vacuum situation, if the surface "A" of a black heatsink is totally covered at T1 (temperature 1) by another black body at T2 (temperature 2), the black heatsink would get the energy reflected from another black body at reflection energy Ad(T14-T24) that we call "Stefan-Boltzmann" law of thermal radiation, here refers to Stefan Boltzmann Constant, it is 5.6697 x 10-8 w/m2?K4. Therefore if based on above, T1 is the temperature obtained from the black heatsink onto CPU, T2 is the ambient temperature around CPU. So if T14-T24 is a positive value, we know black is the best heat dissipation transistor since there is no thermal source around CPU inside PC case.