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IDENTIFICATION OF SPECTRAL RADIATIVE PROPERTIES OF POLYURETHANE FOAM FROM HEMISPHERICAL AND BI-DIRECTIONAL TRANSMITTANCE AND REFLECTANCE MEASUREMENTS

DOI: 10.1615/ICHMT.2001.RadiationSymp.480
9 pages

Dominique Baillis
LaMCoS, INSA-Lyon, CNRS UMR 5259,18-20 Rue des Sciences, F69621 Villeurbanne, France

M. Arduini-Schuster
Bavarian Center for Applied Energy Research, Dept. of Thermal Insulation and Heat Transfer, ZAE Bayern, Am Hubland, 97074 Wuerzburg, Germany

Jean-Francois Sacadura
Institut National des Sciences Appliquées, Centre de Thermique de Lyon (CETHIL), France

Аннотация

Spectral radiative properties (absorption coefficient, scattering coefficient and phase function) of open cell polyurethane foam are determined from parameter identification method. This method uses spectral transmittance and reflectance measurements in the wavelength infrared region of [2-15 μm]. Different strategies of identification using different types of measurements (directional-hemispherical, combination of directional-directional and directional-hemispherical) are compared. The discrete ordinates method is used to solve the radiative transfer equation.

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