The effect of radiation on oxy-fuel combustion characteristics in microchannels

Rached Ben-Mansour*, Mohamed A. Habib, Pervez Ahmed

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The importance of thermal radiation in heat transfer mechanism in many micro combustion systems has been well identified in the past few years. There is currently lack of quantitative understanding on the radiation heat transfer in relatively small scale laminar diffusion flames in microchannels. In the present study a two dimensional model is considered to investigate the effects of radiation on oxy-fuel combustion characteristics in microchannels. The discreteordinates radiation model is used for the study. It is observed that excluding radiation model results in the over-prediction of combustion temperatures in the micro-reactor. It has also been observed that the overall reaction rate and its peak value increase when accounting for radiative heat transfer, despite the decrease in temperature caused by radiation. Therefore, it is important to incorporate a radiation heat transfer model in combustion micro-systems in order to predict their characteristics accurately.

Original languageEnglish
Title of host publicationAdvanced Engineering and Materials
Pages49-54
Number of pages6
DOIs
StatePublished - 2013

Publication series

NameApplied Mechanics and Materials
Volume302
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Keywords

  • Combustion
  • Microchannel
  • Radiation

ASJC Scopus subject areas

  • General Engineering

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