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Heat transfer by radiation through porous insulations
Author(s) -
Larkin Bert K.,
Churchill Stuart W.
Publication year - 1959
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690050413
Subject(s) - isothermal process , heat transfer , porosity , porous medium , materials science , thermal radiation , fiber , radiation , mechanics , composite material , mass transfer , thermodynamics , optics , physics
Radiant transfer through fibrous and foamed insulating materials was investigated theoretically and experimentally. Transmission measurements were made under isothermal conditions with a black‐body source varying from 200° to 800°F. Bulk density and fiber and pore size were also varied. These data were interpreted successfully in terms of a simple theoretical model. The results provide design information and define the contributions of the several mechanisms of transfer.