Study of High-Temperature Combustion of Diesel Fuel Spray and Formation and Oxidation of Soot in the Flame using a Rapid Compression Machine

Norimasa Iida, Hideki Ohhashi

Research output: Contribution to journalArticle


We investigated the effects of a high-temperature environment on diesel spray combustion and formation and oxidation of soot in the flame by eliminating the effects of wall temperature and boundary layer as much as possible using a rapid compression machine which has large combustion chamber. When gas temperature increased, short ignition delay and elongation of combustion was observed by analyzing the cylinder pressure diagram. However disappearance time of luminous flame did not change. Recombination of thermal dissociation must be considered as apparent heat release. Higher surrounding gas temperature results in increased soot formation time and extended low-density soot region in the flame, in spite of almost the same time histories of total amount of soot.

Original languageEnglish
Pages (from-to)2599-2606
Number of pages8
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Issue number575
Publication statusPublished - 1994 Jan 1



  • Diesel Engine
  • High-Temperature Combustion
  • Light Oil
  • Low Heat Rejection Engine
  • Rapid Compression Machine
  • Soot Formation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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