Effects of radiative heat transfer on premixed, laminar, flat flames

Jose B. Pessoa-Filho, Stefan Thynell

Research output: Contribution to conferencePaper

Abstract

Effects of radiative heat transfer on the structure of premixed CH4-Air flames were investigated by solving the species and overall energy conservation equations simultaneously with the nongray radiative transfer equation. Nongray effects from CO2, CO, H2O and CH4 were treated through the use of a narrow-band model. Results were obtained for a wide range of pressures, equivalence ratios and mass-flow rates. For regions where most of the experimental data are taken, up to 0.5 cm above the burner, radiative losses are negligible. However, it was shown that the maximum flame temperature occurs beyond the location where experimental measurements are taken. Hence, some of the discrepancies between experimental and theoretical calculations reside on the lack of chemical equilibrium among the combustion products. In addition, radiative heat feedback to the burner surface represents an important component of the total energy transferred to the burner.

Original languageEnglish (US)
Pages1-8
Number of pages8
StatePublished - Jan 1 1996
EventGuidance, Navigation, and Control Conference and Exhibit, 1996 - San Diego, United States
Duration: Jul 29 1996Jul 31 1996

Other

OtherGuidance, Navigation, and Control Conference and Exhibit, 1996
CountryUnited States
CitySan Diego
Period7/29/967/31/96

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All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Aerospace Engineering

Cite this

Pessoa-Filho, J. B., & Thynell, S. (1996). Effects of radiative heat transfer on premixed, laminar, flat flames. 1-8. Paper presented at Guidance, Navigation, and Control Conference and Exhibit, 1996, San Diego, United States.