Heat Transfer was an 8am class, so I failed it the first time (and got a D the next time - still 8am!). Now I leave it to the experts. And here's what they say.
Highlights:
"Will black anodize have a higher emmisivity than clear anodize? Yes; but not much, the emissivity of black anodize is about 0.86, its about 0.83 for clear. This is about the same as oil paint, any color. Heatsinks are anodized and dyed black for looks and corrosion resistance, not because it provides any useful improvement in cooling."
I was interested in this topic a few months ago and ran a Google search, but surprisingly I didn't find much practical info besides the above (or I stopped trying when I read that).
Highlights:
"Will black anodize have a higher emmisivity than clear anodize? Yes; but not much, the emissivity of black anodize is about 0.86, its about 0.83 for clear. This is about the same as oil paint, any color. Heatsinks are anodized and dyed black for looks and corrosion resistance, not because it provides any useful improvement in cooling."
I was interested in this topic a few months ago and ran a Google search, but surprisingly I didn't find much practical info besides the above (or I stopped trying when I read that).
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