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