層流燃焼速度を揃えた低温度希薄水素予混合火災の火災構造

URI http://repository.tsuyama-ct.ac.jp/metadata/94
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Title
層流燃焼速度を揃えた低温度希薄水素予混合火災の火災構造
Title Alternative
Flame Structure of Low Tempreture Flames of Premixed Lean Hydrogen Mixtures Having nearly the Same Laminar Burning Velocity
Author
著者 橋本 淳
著者(別表記) Hashimoto Jun
著者 城戸 秀樹
著者(別表記) Kido Hideki
著者 福田 昌准
著者(別表記) Fukuda Masanori
Abstract

In this study, combustion characteristics and flame structures of low temperature flames of lean hydrogen mixtures are investigated by chemical kinetics computations. Several mixtures having nearly the same laminar burning velocities of 15, 25 and 35cm/s are prepared by adding nitrogen to hydrogen-oxgen mixtures with equivalence ratios ranging from 0.3 to 0.9. Initial pressures are varied from 1 to 4 atm at the initial temperature of 298K. As a result, it is clarified that low temperature reactions (R05:H+O2+M⇔HO2+M, R06:H+HO2⇒OH+OH, R04:H2+OH⇔H2O+H) are dominative in these flames regardless of the initial pressures, however, there are differences in flame structures and combustion characteristics depending on the equivalence ratio.

Subject
570 Chemical technology
Keyword
Hydrogen
Premixed Combustion
Lean-Burn Engine
Low Temperature Flame
Chemical Kinetics
Publish Date
2005-02-28
Publication Title
津山工業高等専門学校紀要
Publication Title Alternative
Bulletin of Tsuyama National College of Technology
Volume
46
Start Page
17
End Page
24
ISSN
0287-7066
NCID
AN00149351
Publisher
津山工業高等専門学校
Official URL
Contents Type
Departmental Bulletin Paper
language
Japanese
File Version
publisher