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2. Calculating emissivity from the complex index
The relationship (6) , based on the principle of conservation of energy, links the transmission factor, reflection factor and absorption factor for a given wavelength:
( 6 )where α is the spectral absorption factor, τ the spectral hemispherical directional transmission factor and ρ the spectral...
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Calculating emissivity from the complex index
Emissivity of real materials
Bibliography
Norms and Standards
- Glass in construction – Determination of emissivity - NF EN 12898 - 2001
- Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques, ASTM International, West Conshohocken, PA - ASTM E408-13 - 2013
- Standard Test Method for Total Hemispherical Emittance of Surfaces up to 1 400 °C, ASTM International, West Conshohocken, PA - ASTM C835-06 - 2006
- Standard Test Method...
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