Sentences with phrase «very high emissivity»

From my direct IR measurement experiences, materials with nitrides (N, N2, etc) and oxides (O, O2, etc) in their surface composition have very high emissivity, closer to blackbodies.
Ceramic has a very high emissivity rating, meaning it produces a lot of infrared heat.

Not exact matches

The emissivity of earth (and the oceans) is very high.
Then try 1365/4 for the flux and emissivity of 0.88 (which is closer to that of rock and soil) and you get 287.6 K which is very close to the assumed mean surface temperature and thus obviates any need for that «33 degree of warming» In fact the 0.88 should be even lower and that gives higher temperatures above 290K.
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