メタンを燃料に用いた場合の管状火炎バーナの燃焼特性

Combustion Characteristics of a Tubular Flame Burner for Methane

萩原 良一

岡本 昌也

石塚 悟

小林 秀峰

中村 章

鈴木 実

日本機械学會論文集. B編

Combustion characteristics of a tubular flame burner, which has been developed previously for propane, have been investigated with using methane as a fuel. The results show that the combustion characteristics for methane are almost the same as those for propane. Namely, (1)the equivalence ratio at the lean limit is about 0.5, (2)the wall temperature at the injection section is kept low, and (3)the burned gas temperature is uniform in the axial direction. However, (4)a tubular flame with a large laminar flame area of 0.24 m^2 is obtained with lean mixtures, (5)the stable flame region in the fuel-rich side is very narrow, (5)the equivalence ratios at which the flame diameter, the flame length, and the flame temperature take their maxima or minima are shifted to 0.9, and (6)the volumetric burning rate becomes 50% less or more than the total mixture volume flow rate for the near lean- and rich-limit mixtures, although they agree well for the stoichiometric mixture.

Tubular Flame

Burner

Methane

Combustion

Laminar Flame

Preferential Diffusion

技術・工学 [ 500 ]

日本語

一般社団法人日本機械学会

社団法人日本機械学会

本文データは学協会の許諾に基づきCiNiiから複製したものである

[ISSN] 0387-5016

[NCID] AN00187441

[NAID] 110002392755 ～の異版である