Effect of heat release distribution on combustion oscillation

S. Kato, T. Fujimori, A. P. Dowling, H. Kobayashi

Research output: Contribution to journalConference articlepeer-review

35 Citations (Scopus)

Abstract

The effect of flame position and its spatial variation on prediction accuracy of combustion oscillation in a dry low emission (DLE) combustor was studied. A one-dimensional linear model was developed. Methane was used as fuel and controlled by two thermal mass flow controllers. A triangular distribution function was introduced into the flame model because it is similar to the experimentally obtained distribution function. A "top-hat" distribution was also considered to test the influence of distribution shape on the result. The triangular flame model showed better prediction of the stability boundaries of combustion oscillation compared with the simple flame sheet model. The results of the top-hat flame model differed from those of the experiment. Consideration of the spatial distribution yielded good results for the DLE combustor. This is an abstract of a paper presented at the 30th International Symposium on Combustion (Chicago, IL 7/25-30/2004).

Original languageEnglish
Pages (from-to)1799-1806
Number of pages8
JournalProceedings of the Combustion Institute
Volume30 II
Issue number2
DOIs
Publication statusPublished - 2005
Event30th International Symposium on Combustion - Chicago, IL, United States
Duration: 2004 Jul 252004 Jul 30

Keywords

  • Combustion oscillation
  • DLE combustor
  • Premixed flame

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

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