Numerical studies on combustion characteristics of DME and propane in the counterflow non-premixed flame

J. S. Lee, D. J. Lee, S. Y. Oh, H. Y. Kim, S. Park, Y. Kim

Research output: Contribution to conferencePaper

Abstract

Numerical studies were conducted to investigate the combustion characteristics of dimethyl ether (DME) and propane in the counterflow diffusion flames at various global strain rates and fuel concentrations. The numerical results indicated that the combustion characteristics of DME and propane were qualitatively similar with respect to temperature distribution, peak temperature, and stagnation plane. These similarities persisted even when these fuels were subject to different combustion scenarios. The results also showed that the oxygenated elements of DME generated a lot of CO and yielded complete combustion. Propane combustion is largely influenced by high strain rate, resulting in relatively low concentrations of CO2 and H2O and high concentration of CO. In the case of DME, strain rate seemed to have small influence on CO2 production whereas the productions of H2O and CO are affected by the strain rates in a similar manner. The results indicated that H2O production was more effective than that of CO2 in raising the flame temperature. The combustion characteristics of DME seemed to be more sensitive to fuel concentration than that of propane. The effects of the oxygenated elements of DME were relatively small during the leaner combustion stage.

Original languageEnglish
Publication statusPublished - 2009 Jan 1
Event7th Asia-Pacific Conference on Combustion, ASPACC 2009 - Taipei, Taiwan, Province of China
Duration: 2009 May 242009 May 27

Conference

Conference7th Asia-Pacific Conference on Combustion, ASPACC 2009
CountryTaiwan, Province of China
CityTaipei
Period09/5/2409/5/27

ASJC Scopus subject areas

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

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    Lee, J. S., Lee, D. J., Oh, S. Y., Kim, H. Y., Park, S., & Kim, Y. (2009). Numerical studies on combustion characteristics of DME and propane in the counterflow non-premixed flame. Paper presented at 7th Asia-Pacific Conference on Combustion, ASPACC 2009, Taipei, Taiwan, Province of China.