Numerical calculation of the ignition and the combustion in homogeneous charge compression ignition engine by using an elementary reaction model in case of dimethyl ether

Norimasa Iida, Takashi Koyama, Yasumitsu Ibaragi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Homogeneous Charge Compression Ignition (hereafter HCCI) engine can realize low emission and high thermal efficiency. However, its ignition and combustion processes are difficult to control and thus the reaction mechanisms of auto-ignition and combustion are needed to be clarified. In this study, the numerical calculation of auto-ignition and combustion processes in HCCI engine is carried out. Curran et al.'s DME (Dimethyl Ether) elementary reaction model is used. The results of the calculations are compared with the experimental results and the validity of the elementary reaction model is investigated. And followings are investigated: the influence of equivalence ratio, intake temperature, EGR ratio and engine speed on rate of heat release, ignition timing, ignition temperature and histories of species' mole fractions. As a result, Curran et al.'s model can qualitatively predict the influence of equivalence ratio, intake temperature on the ignition timings and the peeks of the rate of heat release.

Original languageEnglish
Pages (from-to)1274-1281
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume67
Issue number657
DOIs
Publication statusPublished - 2001 May

Keywords

  • CHEMKIN
  • Chemical reaction
  • Dimethyl ether
  • Elementary reaction
  • HCCI
  • I'remixed combustion
  • Internal combustion engine
  • Lean burn

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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