Radiative heat transfer in fibrous insulations—Part I: Analytical study

Wai Cheung Timothy Tong, C. L. Tien

Research output: Journal article publicationJournal articleAcademic researchpeer-review

169 Citations (Scopus)


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 L WFI.
Original languageEnglish
Pages (from-to)70-75
Number of pages6
JournalJournal of Heat Transfer
Issue number1
Publication statusPublished - 1 Jan 1983
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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