Study on ignition temperature of wall-stabilized cool flames

Minhyeok Lee, Yong Fan, Yiguang Ju, Yuji Suzuki

Research output: Contribution to conferencePaper

Abstract

Ignition temperature of premixed cool flames has been studied using wall-stabilized cool flames. A dimethyl ether (DME)-O2 mixture was impinged onto a heated wall and ignited by linearly ramping the wall temperature in the vicinity of cool flame ignition temperature. The instantaneous wall temperature was monitored with a thermocouple, and the HCHO concentration during the ignition of the cool flame was captured using planar laser-induced fluorescence (PLIF) synchronized with the temperature measurement. It is found that the HCHO concentration near the center axis shows an abrupt increase at a certain temperature, which can be defined as the ignition temperature of the cool flame. For the DME/O2 premixed flame, the ignition temperature is found to be 665 K.

Original languageEnglish (US)
StatePublished - Jan 1 2019
Event12th Asia-Pacific Conference on Combustion, ASPACC 2019 - Fukuoka, Japan
Duration: Jul 1 2019Jul 5 2019

Conference

Conference12th Asia-Pacific Conference on Combustion, ASPACC 2019
CountryJapan
CityFukuoka
Period7/1/197/5/19

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Condensed Matter Physics

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  • Cite this

    Lee, M., Fan, Y., Ju, Y., & Suzuki, Y. (2019). Study on ignition temperature of wall-stabilized cool flames. Paper presented at 12th Asia-Pacific Conference on Combustion, ASPACC 2019, Fukuoka, Japan.