Radiative heat transfer in fibrous insulations: Part 1: Analytical study

Journal Article · Tue Feb 01 04:00:00 EST 1983 · J. Heat Transfer; (United States)

DOI:https://doi.org/10.1115/1.3245561· OSTI ID:6091520

Tong, T W; Tien, C L

The purpose of this work is to develop models for predicting the radiant heat flux in lightweight fibrous insulations (LWFI). The radiative transport process is modeled by the two-flux solution and the linear anisotropic scattering solution of the equation of transfer. The radiative properties of LWFI consistent with these solutions have been determined based on extinction of electromagnetic radiation by the fibers. Their dependence on the physical characteristics of fibrous insulations has been investigated. It has been found that the radiant heat flux can be minimized by making the mean radius of the fibers close to that which yields the maximum extinction coefficient. The results obtained in this study are useful to those concerned with the design and application of LWFI.

• Research Organization: Department of Mechanical Engineering, University of Kentucky, Lexington, Kentucky 40506
• OSTI ID: 6091520
• Journal Information: J. Heat Transfer; (United States), Journal Name: J. Heat Transfer; (United States) Vol. 105:1; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ANISOTROPY
CHALCOGENIDES
ENERGY TRANSFER
FIBERGLASS
FIBERS
HEAT FLUX
HEAT TRANSFER
MATHEMATICAL MODELS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADIANT HEAT TRANSFER
SILICA
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
THERMAL INSULATION