Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 110, Issue 13, Pages 1111-1123Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2009.03.022
Keywords
Heat transfer; Radiative properties; Fibrous insulation; Inverse analysis; Thermal conductivity
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Funding
- National High Technology 863 Projects Foundation of China [2006AA705317]
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In present paper, a modified factor of extinction coefficient and an equivalent albedo of scattering were defined taking into account anisotropic scattering in fibrous insulation. An inverse conduction-radiation analysis in an absorbing, emitting and scattering medium was conducted for the simultaneous estimation of the conductive and radiative properties using the experimentally measured temperature responses for external temperatures up to 980K. The estimated properties were validated by comparing the predicted and measured results under transient and steady-state condition. It was found that the calculated results corresponded well with the experimental data within an average of 3.1% under transient condition and 9.8% under steady-state condition. This confirms the good behavior of the model and the validity of results. (C) 2009 Elsevier Ltd. All rights reserved.
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