Fuel concentration measurement of premixed mixture using spark-induced breakdown spectroscopy

Nobuyuki Kawahara, Eiji Tomita, S. Takemoto, Y. Ikeda

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

This study determined the local equivalence ratio of a CH4/air mixture in a laminar premixed flame using spark-induced breakdown spectroscopy (SIBS) with a fiber-coupled intensified charge coupled device (ICCD) spectrometer. Spectrally resolved emission spectra of plasma generated by a spark plug were investigated for their potential to measure local fuel concentrations in a premixed mixture. The influence of key parameters, such as the camera gate timing and spark energy, on the intensity of radical emission was illustrated. The intensity ratio of CN/NH had a greater sensitivity to the equivalence ratio than did that of CN/OH, and the local equivalence ratio could be obtained with high resolution by measuring the local intensity ratios of CN/NH. Moreover, a spark-plug sensor with an optical fiber was developed for application in spark-ignition engines. The atomic emission intensity during the breakdown and arc phases of spark discharge could be obtained using the fiber-optic spark-plug sensor. The Hα/O intensity showed better linearity than the CN/NH intensity ratio in lean mixtures. The results presented here confirm the use of SIBS as a diagnostic tool for spark-ignition engines.

Original languageEnglish
Pages (from-to)1085-1092
Number of pages8
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume64
Issue number10
DOIs
Publication statusPublished - Oct 2009

Fingerprint

sparks
Electric sparks
Spark plugs
breakdown
spark plugs
Spectroscopy
Internal combustion engines
spectroscopy
equivalence
spark ignition
Optical fiber coupling
engines
Sensors
Charge coupled devices
Fiber optics
Spectrometers
Optical fibers
electric sparks
premixed flames
Cameras

Keywords

  • Equivalence ratio measurement premixed mixture
  • Mole fraction measurement
  • Spark-induced breakdown spectroscopy (SIBS)

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Spectroscopy

Cite this

Fuel concentration measurement of premixed mixture using spark-induced breakdown spectroscopy. / Kawahara, Nobuyuki; Tomita, Eiji; Takemoto, S.; Ikeda, Y.

In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 64, No. 10, 10.2009, p. 1085-1092.

Research output: Contribution to journalArticle

@article{25e6773ef94e482a8121ad1994b9809f,
title = "Fuel concentration measurement of premixed mixture using spark-induced breakdown spectroscopy",
abstract = "This study determined the local equivalence ratio of a CH4/air mixture in a laminar premixed flame using spark-induced breakdown spectroscopy (SIBS) with a fiber-coupled intensified charge coupled device (ICCD) spectrometer. Spectrally resolved emission spectra of plasma generated by a spark plug were investigated for their potential to measure local fuel concentrations in a premixed mixture. The influence of key parameters, such as the camera gate timing and spark energy, on the intensity of radical emission was illustrated. The intensity ratio of CN/NH had a greater sensitivity to the equivalence ratio than did that of CN/OH, and the local equivalence ratio could be obtained with high resolution by measuring the local intensity ratios of CN/NH. Moreover, a spark-plug sensor with an optical fiber was developed for application in spark-ignition engines. The atomic emission intensity during the breakdown and arc phases of spark discharge could be obtained using the fiber-optic spark-plug sensor. The Hα/O intensity showed better linearity than the CN/NH intensity ratio in lean mixtures. The results presented here confirm the use of SIBS as a diagnostic tool for spark-ignition engines.",
keywords = "Equivalence ratio measurement premixed mixture, Mole fraction measurement, Spark-induced breakdown spectroscopy (SIBS)",
author = "Nobuyuki Kawahara and Eiji Tomita and S. Takemoto and Y. Ikeda",
year = "2009",
month = "10",
doi = "10.1016/j.sab.2009.07.016",
language = "English",
volume = "64",
pages = "1085--1092",
journal = "Spectrochimica Acta, Part B: Atomic Spectroscopy",
issn = "0584-8547",
publisher = "Elsevier",
number = "10",

}

TY - JOUR

T1 - Fuel concentration measurement of premixed mixture using spark-induced breakdown spectroscopy

AU - Kawahara, Nobuyuki

AU - Tomita, Eiji

AU - Takemoto, S.

AU - Ikeda, Y.

PY - 2009/10

Y1 - 2009/10

N2 - This study determined the local equivalence ratio of a CH4/air mixture in a laminar premixed flame using spark-induced breakdown spectroscopy (SIBS) with a fiber-coupled intensified charge coupled device (ICCD) spectrometer. Spectrally resolved emission spectra of plasma generated by a spark plug were investigated for their potential to measure local fuel concentrations in a premixed mixture. The influence of key parameters, such as the camera gate timing and spark energy, on the intensity of radical emission was illustrated. The intensity ratio of CN/NH had a greater sensitivity to the equivalence ratio than did that of CN/OH, and the local equivalence ratio could be obtained with high resolution by measuring the local intensity ratios of CN/NH. Moreover, a spark-plug sensor with an optical fiber was developed for application in spark-ignition engines. The atomic emission intensity during the breakdown and arc phases of spark discharge could be obtained using the fiber-optic spark-plug sensor. The Hα/O intensity showed better linearity than the CN/NH intensity ratio in lean mixtures. The results presented here confirm the use of SIBS as a diagnostic tool for spark-ignition engines.

AB - This study determined the local equivalence ratio of a CH4/air mixture in a laminar premixed flame using spark-induced breakdown spectroscopy (SIBS) with a fiber-coupled intensified charge coupled device (ICCD) spectrometer. Spectrally resolved emission spectra of plasma generated by a spark plug were investigated for their potential to measure local fuel concentrations in a premixed mixture. The influence of key parameters, such as the camera gate timing and spark energy, on the intensity of radical emission was illustrated. The intensity ratio of CN/NH had a greater sensitivity to the equivalence ratio than did that of CN/OH, and the local equivalence ratio could be obtained with high resolution by measuring the local intensity ratios of CN/NH. Moreover, a spark-plug sensor with an optical fiber was developed for application in spark-ignition engines. The atomic emission intensity during the breakdown and arc phases of spark discharge could be obtained using the fiber-optic spark-plug sensor. The Hα/O intensity showed better linearity than the CN/NH intensity ratio in lean mixtures. The results presented here confirm the use of SIBS as a diagnostic tool for spark-ignition engines.

KW - Equivalence ratio measurement premixed mixture

KW - Mole fraction measurement

KW - Spark-induced breakdown spectroscopy (SIBS)

UR - http://www.scopus.com/inward/record.url?scp=72049115775&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72049115775&partnerID=8YFLogxK

U2 - 10.1016/j.sab.2009.07.016

DO - 10.1016/j.sab.2009.07.016

M3 - Article

AN - SCOPUS:72049115775

VL - 64

SP - 1085

EP - 1092

JO - Spectrochimica Acta, Part B: Atomic Spectroscopy

JF - Spectrochimica Acta, Part B: Atomic Spectroscopy

SN - 0584-8547

IS - 10

ER -