Ignition Enhancement of Lean Ethanol Vaper-Air Mixture by Hydrogen Addition(Thermal Engineering)

The ignition enhancement effects of hydrogen addition to lean ethanol vapor-air mixtures are experimentally investigated. Hydrogen addition decreases the lean limit of equivalence ratio from 0.80 down to 0.36. The peak overpressure increases and ignition delay time decreases under the conditions of...

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Veröffentlicht in:	Nihon Kikai Gakkai rombunshuu. B hen 2009/02/25, Vol.75(750), pp.347-353
Hauptverfasser:	FURUICHI, Shinji, MATSUDAIRA, Motoshi, SAITOH, Hiroyasu, YOSHIKAWA, Norihiko
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	Alternative Energy Chemical Reaction Hydrogen Addition Ignition Premixed Combustion
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Zusammenfassung:	The ignition enhancement effects of hydrogen addition to lean ethanol vapor-air mixtures are experimentally investigated. Hydrogen addition decreases the lean limit of equivalence ratio from 0.80 down to 0.36. The peak overpressure increases and ignition delay time decreases under the conditions of equivalence ratio below 0.80. Hydrogen addition effect is also confirmed using detailed computations of reaction mechanism. Chain reactions including H_2 are primary ignition enhancing mechanism.
ISSN:	0387-5016 1884-8346
DOI:	10.1299/kikaib.75.750_347