Ignition enhancement of lean ethanol vaper-air mixture by hydrogen addition

Shinji Furuichi, Motoshi Matsudaira, Hiroyasu Saitoh, Norihiko Yoshikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)347-353
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number750
Publication statusPublished - 2009 Feb
Externally publishedYes


  • Alternative Energy
  • Chemical Reaction
  • Hydrogen Addition
  • Ignition
  • Premixed Combustion

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering


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