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Originally Posted by WAJ_UK
I know this is a bit of an old thread thought I would revive it. I was doing some simple calcs today to estimate the effect of the baseplate.
Assuming a 100W , 10mm by 10mm heat source and a C101 baseplate.
I'm also assuming that the heat spreads at 45 deg from each corner of the heat source. Do you guys think this is a reasonable approximation for how the heat spreads? If not is there a better way of doing it?
Just thought I would throw the graph in as well
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I am aware that this link will not do you much good since the forum is in slovene but it shows a rather nice analysis in Ansys DesignSpace of the effects of baseplate thicknes on thermal transfer.
Ambient temp: 30C
Heat current: 80W (an air cooler is simulated)
Convection coefficient: 50W/m^2K