The ratio of the radiant flux absorbed by a body to that incident upon it

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Look at other dictionaries:

  • Selective Absorber —   A solar absorber surface that has high absorbtance at wavelengths corresponding to that of the solar spectrum and low emittance in the infrared range …   Energy terms

  • Selective Surface Coating —   A material with high absorbtance and low emittance properties applied to or on solar absorber surfaces …   Energy terms

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