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이원남(Wonnam Lee),서동규(Dong-Kyu Seo),조승범(Seung-Beom Cho),선희석(Hee-Suk Sun),김기원(Ki-Won Kim),신연철(Yeon-Cheul Shin) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The stabilization of fuel-lean laminar premixed flames with the triple flame configuration has been studied experimentally using a slot burner. The presence of fuel-rich flames significantly lowers the equivalence ratio limit for stable fuel-lean flames. The stable fuel-rich/lean combustion was obtained at the over-all equivalence ratio below 0.6. The increase of fuel flow rate in fuel-rich flames makes the fuel-lean flame more stable; however, the stability of fuel-lean flames was not sensitive to the equivalence ratio of a fuel-rich flame in the range of 1.3-2.4. The similar tendency on the stable fuel-lean combustion utilizing triple flame configuration was observed for both methane and propane flames, which indicates that the fuel-rich/lean combustion can be practical for the combustion systems using natural gas or LPG as fuel.