Emissivity The ability of a surface to emit radiant energy compared to that of a black body at the same temperature and with the same area. ENDG ...
Emissivity The fractional amount of radiation emitted by a given object or substance in comparison to the amount emitted by a perfect emitter. Emittance The rate at which a black body radiates energy across all wave-lengths.
Emissivity A measure of how close a radiating object approximates a blackbody, a perfect radiator. ...
flux emissivity"The ratio of emitted flux density from a given surface to that from a blackbody at the same temperature.
effective emissivityA correction factor, dependent on the radiational characteristics of the earth-atmosphere system, that permits application of black body radiation laws to the earth-atmosphere system.
emissivity The ratio of the radiation emitted by a surface to that emitted by a black body at the same temperature.
See also: Radiation, Wind, Heat, Energy, Air
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