Fiber-optic heterodyne interferometry temperature measurement of unburned gas in a HCCI engine fueled with DME

Nobuyuki Kawahara, Eiji Tomita, Mitsuru Ichimiya

Research output: Contribution to conferencePaper

Abstract

Various global environmental issues are related to the use of internal combustion engines, including air pollution and energy concerns. With homogeneous charge compression ignition (HCCI) engine, it is possible to operate with ultra lean premixed mixtures and to lead low NOx and soot-particle emissions. The temperature of the unburned mixture in a HCCI engine, fueled with dimethyl ether, was measured using fiber-optic heterodyne interferometry along a line of sight. The measurement accuracy of the developed system was sufficient to determine the temperature history of unburned mixture in HCCI operation. The uncertainty of this method was within ± 15K. The resolution of temperature measurements was ∼ 0.5 K, and depended on the sampling clock speed of the A/D converter and the length of the test section. Original is an abstract.

Original languageEnglish
Number of pages1
Publication statusPublished - Dec 1 2002
Event29th International Symposium on Combustion - Sapporo, Japan
Duration: Jul 21 2002Jul 26 2002

Other

Other29th International Symposium on Combustion
CountryJapan
CitySapporo
Period7/21/027/26/02

ASJC Scopus subject areas

  • Engineering(all)

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    Kawahara, N., Tomita, E., & Ichimiya, M. (2002). Fiber-optic heterodyne interferometry temperature measurement of unburned gas in a HCCI engine fueled with DME. Paper presented at 29th International Symposium on Combustion, Sapporo, Japan.