Enhancement of thermal emission from porous radiant burners

Wai Cheung Timothy Tong, Weiming Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Presented in this paper are the results of a theoretical study on using coatings to enhance the emittance of porous radiant burners. Consideration is given to burners made of silica fibers, and applying coatings to the fibers. Coating materials considered are silicon carbide, graphite, and platinum. The radiative properties of the fibers with and without coatings are computed using a radiation scattering theory. The radiative properties are then used in a P-3 solution of the radiative transfer equation to predict the emittance of the burners. It is shown that graphite and platinum coatings enhanced 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
Title of host publicationGeneral Papers in Radiative Heat Transfer
PublisherPubl by ASME
Number of pages10
ISBN (Print)079181002X
Publication statusPublished - 1 Dec 1993
Externally publishedYes
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, United States
Duration: 28 Nov 19933 Dec 1993


ConferenceProceedings of the 1993 ASME Winter Annual Meeting
Country/TerritoryUnited States
CityNew Orleans, LA

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

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