Effects of spark discharge mode in pulsed flame jet igniter on OH fluorescence images in a swirl flow

E. Murase; K. Hanada; T. Hamakawa; K. Hotta

doi:10.1080/00102200490487210

Effects of spark discharge mode in pulsed flame jet igniter on OH fluorescence images in a swirl flow

E. Murase, K. Hanada, T. Hamakawa, K. Hotta

Combustion

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In internal combustion engines, lean burn is particularly attractive for minimizing pollutant emissions, in particular NO_x, with a concomitant improvement in fuel economy. For combustion in lean fuel-air mixtures, achievement of adequate reliability of ignition and sufficiently high burning rate requires special methods. An effective technique is the injection of active radicals by means of the pulsed flame jet (PFJ) ignition system. Presented here is an experimental proof of the action of OH radicals produced by such an ignition system in a swirl flow with varying the spark discharge mode in the cavity of the PFJ igniter. The measuring apparatus used for this purpose was based on the planar laser-induced fluorescence method, and the effects of the spark discharge mode in the cavity of the PFJ igniter on the variation of OH fluorescence area in the jet and its intensity were revealed quantitatively.

Original language	English
Pages (from-to)	1639-1652
Number of pages	14
Journal	Combustion Science and Technology
Volume	176
Issue number	10
DOIs	https://doi.org/10.1080/00102200490487210
Publication status	Published - Oct 2004

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Physics and Astronomy(all)

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10.1080/00102200490487210

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abstract = "In internal combustion engines, lean burn is particularly attractive for minimizing pollutant emissions, in particular NOx, with a concomitant improvement in fuel economy. For combustion in lean fuel-air mixtures, achievement of adequate reliability of ignition and sufficiently high burning rate requires special methods. An effective technique is the injection of active radicals by means of the pulsed flame jet (PFJ) ignition system. Presented here is an experimental proof of the action of OH radicals produced by such an ignition system in a swirl flow with varying the spark discharge mode in the cavity of the PFJ igniter. The measuring apparatus used for this purpose was based on the planar laser-induced fluorescence method, and the effects of the spark discharge mode in the cavity of the PFJ igniter on the variation of OH fluorescence area in the jet and its intensity were revealed quantitatively.",

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AU - Murase, E.

AU - Hanada, K.

AU - Hamakawa, T.

AU - Hotta, K.

PY - 2004/10

Y1 - 2004/10

N2 - In internal combustion engines, lean burn is particularly attractive for minimizing pollutant emissions, in particular NOx, with a concomitant improvement in fuel economy. For combustion in lean fuel-air mixtures, achievement of adequate reliability of ignition and sufficiently high burning rate requires special methods. An effective technique is the injection of active radicals by means of the pulsed flame jet (PFJ) ignition system. Presented here is an experimental proof of the action of OH radicals produced by such an ignition system in a swirl flow with varying the spark discharge mode in the cavity of the PFJ igniter. The measuring apparatus used for this purpose was based on the planar laser-induced fluorescence method, and the effects of the spark discharge mode in the cavity of the PFJ igniter on the variation of OH fluorescence area in the jet and its intensity were revealed quantitatively.

AB - In internal combustion engines, lean burn is particularly attractive for minimizing pollutant emissions, in particular NOx, with a concomitant improvement in fuel economy. For combustion in lean fuel-air mixtures, achievement of adequate reliability of ignition and sufficiently high burning rate requires special methods. An effective technique is the injection of active radicals by means of the pulsed flame jet (PFJ) ignition system. Presented here is an experimental proof of the action of OH radicals produced by such an ignition system in a swirl flow with varying the spark discharge mode in the cavity of the PFJ igniter. The measuring apparatus used for this purpose was based on the planar laser-induced fluorescence method, and the effects of the spark discharge mode in the cavity of the PFJ igniter on the variation of OH fluorescence area in the jet and its intensity were revealed quantitatively.

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Effects of spark discharge mode in pulsed flame jet igniter on OH fluorescence images in a swirl flow

Abstract

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