Analysis of the effect of charge inhomogeneity on HCCI combustion by chemiluminescence measurement

Kengo Kumano, Norimasa Iida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

54 Citations (Scopus)

Abstract

In the HCCI Engine, inhomogeneity in fuel distribution and temperature in the pre-mixture exists microscopically, and has the possibility of affecting the ignition and combustion process. In this study, the effect of charge inhomogeneity in fuel distribution on the HCCI combustion process was investigated. Two-dimensional images of the chemiluminescence were captured by using a framing camera with an optically accessible engine in order to understand the spatial distribution of the combustion. DME was used as a test fuel. By changing a device for mixing air and fuel in the intake manifold, inhomogeneity in fuel distribution in the pre-mixture was varied. The result shows that luminescence is observed in a very short time in a large part of the combustion chamber under the homogeneous condition, while luminescence appears locally with considerable time differences under the inhomogeneous condition. It is also shown that the local luminescence durations are almost the same in both conditions.

Original languageEnglish
Title of host publicationSAE Technical Papers
DOIs
Publication statusPublished - 2004
EventFuels and Lubricants Meeting and Exhibition - Toulouse, France
Duration: 2004 Jun 82004 Jun 10

Other

OtherFuels and Lubricants Meeting and Exhibition
CountryFrance
CityToulouse
Period04/6/804/6/10

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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