Abonnement à la biblothèque: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

THE EFFECT OF RADIATION BARRIERS ON CONDUCTION AND RADIATION HEAT TRANSFER IN FIBROUS INSULATIONS

Get access (open in a dialog) DOI: 10.1615/IHTC8.420
pages 721-726

Résumé

This paper presents the comparison of an analytical model with experimental data for the heat transfer through fiberglass insulation. Heat transfer is considered to occur by coupled conduction and radiation. Comparisons were made with two sets of steady-state heat transfer data obtained from guarded hot plate apparatuses. Computations were performed for both gray and non-gray radiative transport and for isotropic and anisotropic scattering phase functions. The thermal conductivity was modelled as both a constant and as a function of spatial temperature through the fiberglass insulation. To show the effect of radiant foil barriers, calculations are presented to compare the foil and no-foil cases for temperature data recorded in an actual residential attic.