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ID 31643
本文ファイル
別タイトル
An Improvement of Lean Combustion Characteristics of Heavy-Hydrocarbon Fuels with Hydrogen Addition
著者
酒井 幸夫
キーワード
Lean Combustion
Hydrogen Addition
Flame Temperature
Extinction
Effective Equivalence Ratio
Tubular Flame
NDC
技術・工学
抄録(英)
The Lewis numbers of lean heavy-hydrocarbon fuels are larger than unity, and hence, their flames are prone to extinction in a shear flow, which occurs in a turbulent combustion. Here, propane is used as a representative fuel of heavy-hydrocarbon fuels because the Lewis number of lean propane/air mixtures is larger than unity, and an attempt to improve its combustion characteristics by hydrogen addition has been made. A tubular flame burner is used to evaluate its improvement, since a rotating, streched vortex flow is established in the burner. The results show that with hydrogen additon, the fuel concentration, the flame diameter and the flame temperatuire at extinction are reduced and its combustion characteristics are imporved. However, it is found that the effective equivalence ration at extinction cannot become so small as that of lean methane/air mixture, which has a Lewis number less than unity.
掲載誌名
日本機械学會論文集. B編
65巻
637号
開始ページ
3191
終了ページ
3195
出版年月日
1999-09-25
出版者
一般社団法人日本機械学会
ISSN
0387-5016
NCID
言語
日本語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
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
関連情報URL(IsVersionOf)
http://ci.nii.ac.jp/naid/110002395621
部局名
工学研究科