Hydrogen as an ignition-controlling agent for HCCI combustion engine by suppressing the low-temperature oxidation

Shudo, Toshio; Yamada, Hiroyuki

International Journal of Hydrogen Energy, 2007, 32(14), 3066-3072

Permalink : https://hdl.handle.net/2115/30292

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アクセス権
open access
URI
https://hdl.handle.net/2115/30292
タイトル
Hydrogen as an ignition-controlling agent for HCCI combustion engine by suppressing the low-temperature oxidation
著者
著者名
Shudo, Toshio
著者名
Yamada, Hiroyuki
言語
英語
キーワード
Internal combustion engine
HCCI
Ignition control
Low-temperature oxidation
DME
発行日
2007-09
出版者
Elsevier Ltd.
収録物名
International Journal of Hydrogen Energy
巻(号)
32(14)
ページ
3066-3072
抄録
Homogeneous charge compression ignition (HCCI) combustion enables internal combustion engines to achieve higher thermal efficiency and lower NOx emission than with conventional combustion systems. Controlling the ignition timing in accordance with the operating conditions is crucial for utilizing HCCI combustion engines. Adding hydrogen-containing gas is known to retard the autoignition of dimethyl ether (DME) considerably. The effective ignition control by hydrogen can expand the operation range of equivalence ratios and engine loads in HCCI combustion. This research investigated the mechanisms in the ignition control by the chemical kinetics analysis. The results show that the retarded ignition can be attributed to a consumption of OH by hydrogen during low-temperature oxidation of DME. The decreased OH concentration leads to retarded heat release and delays the onset of the high-temperature oxidation.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0360-3199
EISSN
0360-3199
関連情報
URI
http://www.sciencedirect.com/science/journal/03603199
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.ijhydene.2006.12.002