Enhancement of thermal emission from porous radiant burners

Wai Cheung Timothy Tong, Weiming Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)


A theoretical study on using coatings to enhance the emittance of porous radiant burners is presented. Burners made of coated silica fibers are considered along with coating materials of silicon carbide, graphite, and platinum. The radiative properties of the fibers with and without coatings are computed using a radiative scattering theory and are used in a P-3 solution of the radiative transfer equation to predict the emittance of the burners. Graphite and platinum coatings are shown to enhance the emittance by a factor of three for a burner temperature of 1000 K, and by a factor of six for a temperature of 1500 K. It is also shown that it is possible to protect the graphite and platinum coatings from oxidation by applying a silica coating over them.
Original languageEnglish
Pages (from-to)235-248
Number of pages14
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Issue number2
Publication statusPublished - 1 Jan 1995
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy


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