Effects of oxidizer preheating and dilution on the extinction and structure of CH4-O2-Ar counterflowing diffusion flames

Masao Takeuchi, Kunihito Hamatsu, Yuji Yahagi, Shingo Nakahara

研究成果: Paper

抜粋

The effects of oxidizer preheating and dilution levels of fuel and oxygen by inert gas on the extinction and structure of counterflow CH4-O2-Ar diffusion flame were studied experimentally and numerically. The OPPDIF code and the GRI-Mech 2.11 database were used for the calculation. The experimental results agreed well with the numerical calculation results. The detailed measurement and calculation of the flame structure revealed that a flame location was in the oxidizer flow side at smaller stoichiometric mixture fraction (Fst). The region of Fst from 0.2 to 0.6 approximately corresponded to the transition region. In this region, the extinction limit depended on the oxidizer and fuel side conditions. The flame location was quite important factor to understand the effects of dilution levels and oxidizer preheating on the extinction phenomena and of the present study.

元の言語English
ページ数1
出版物ステータスPublished - 2002 12 1
イベント29th International Symposium on Combustion - Sapporo, Japan
継続期間: 2002 7 212002 7 26

Conference

Conference29th International Symposium on Combustion
Japan
Sapporo
期間02/7/2102/7/26

    フィンガープリント

ASJC Scopus subject areas

  • Engineering(all)

これを引用

Takeuchi, M., Hamatsu, K., Yahagi, Y., & Nakahara, S. (2002). Effects of oxidizer preheating and dilution on the extinction and structure of CH4-O2-Ar counterflowing diffusion flames. 論文発表場所 29th International Symposium on Combustion, Sapporo, Japan.