Surface Radiation Absorptivity
Radiation surface absorptivity.
The absorptivity is the amount of radiation absorbed by a surface compared to what is absorbed by a black body.
Surface | Absorptivity |
---|---|
Aluminum, dull/rough polished | 0.4 - 0.65 |
Aluminum. polished | 0.1 - 0.40 |
Asbestos Cement, old | 0.83 |
Black matte | 0.95 |
Chromium plate | 0.20 |
Iron, galvanized old | 0.89 - 0.92 |
Grey paint | 0.95 |
Light green paint | 0.95 |
Limestone | 0.33 - 0.53 |
Red clay brick | 0.94 |
White paint | 0.89 |