Properties of ethanol laminar and turbulent premixed flames

Kazutaka Ohara, Masayoshi Tsukikawa, Yousuke Araki, Akihiro Hayakawa, Shoichi Kobayashi, Toshiaki Kitagawa

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

Spherically propagating laminar and turbulent flames at elevated pressures in a large volume bomb were studied using ethanol-air mixtures. Experiments were carried out at the equivalence ratio 0.8 1.0 and 1.4 varying the initial pressure from 0.10 to 0.50 MPa. Turbulence intensity of the mixture was 0.80 and 1.59 m/s. The unstretched laminar burning velocity, ul decreased as the initial pressure increased. The ratio of the turbulent burning velocity to ul increased with increasing the ratio of turbulence intensity to ul and turbulence Karlovitz number. This burning velocity ratio was large for rich flames. Thermo-diffusive effects might be more influential to rich ethanol flames because of the small Lewis number. This burning velocity ratio was also found to increase with increasing initial pressure.

Original languageEnglish
Publication statusPublished - Jan 1 2009
Event9th International Conference on Power Engineering, ICOPE 2009 - Kobe, Japan
Duration: Nov 16 2009Nov 20 2009

Other

Other9th International Conference on Power Engineering, ICOPE 2009
CountryJapan
CityKobe
Period11/16/0911/20/09

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Fuel Technology

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