Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 111, Issue 6, Pages 865-877Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2009.11.018
Keywords
Radiative properties; Polystyrene foams; Experimental study; Porous material; Thermal insulation
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Funding
- French Research Agency [ECOTEP ANR-05-PBAT-008-01]
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The radiative properties of extruded polystyrene foams (XPS) were predicted using morphological data and optical properties of bulk medium. A particular attention was paid on the modelling of the radiative properties of struts, which are located at the Junctions between cell walls. The radiative properties of XPS foams were determined by adding the contributions of each particle (walls and struts) using the independent scattering hypothesis. Hemispherical reflectance and transmittance measurements were made in addition to total thermal conductivity measurements. Comparisons were made between theoretical and experimental results and some improvements were suggested to better improve modelling of foam radiative properties. (C) 2009 Elsevier Ltd. All rights reserved.
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