TY - JOUR
T1 - Plasma Temperature of Spark Discharge in a Lean-burn Spark-ignition Engine Using a Time Series of Spectra Measurements
AU - Kawahara, Nobuyuki
AU - Watanabe, Masanobu
AU - Tomita, Eiji
AU - Nagano, Yukihide
AU - Kitagawa, Toshiaki
N1 - Funding Information:
This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Innovative Combustion Technology” (Funding agency: JST).
Publisher Copyright:
© 2019 SAE Japan and SAE International.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019/12/19
Y1 - 2019/12/19
N2 - In this research, a spark plug with an optical fiber has been developed to obtain the emission spectra from the spark discharge and flame kernel. This developed spark plug with an optical fiber can obtain the time series of emission spectra from the spark discharge and Initial flame kernel in the real spark-ignition engine using EMCCD spectrometer. The plasma vibrational temperature of the spark discharge can be measured using the emission spectra from the electrically excited CN violet band system. The plasma of the spark discharge and gas rotational temperature of the initial flame kernel can be also measured using emission spectra from OH∗ radicals (P and R branches). The plasma temperature of the spark discharge was almost 8,000 K and the gas temperature of the Initial flame kernel approached that of the adiabatic flame temperature.
AB - In this research, a spark plug with an optical fiber has been developed to obtain the emission spectra from the spark discharge and flame kernel. This developed spark plug with an optical fiber can obtain the time series of emission spectra from the spark discharge and Initial flame kernel in the real spark-ignition engine using EMCCD spectrometer. The plasma vibrational temperature of the spark discharge can be measured using the emission spectra from the electrically excited CN violet band system. The plasma of the spark discharge and gas rotational temperature of the initial flame kernel can be also measured using emission spectra from OH∗ radicals (P and R branches). The plasma temperature of the spark discharge was almost 8,000 K and the gas temperature of the Initial flame kernel approached that of the adiabatic flame temperature.
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U2 - 10.4271/2019-01-2158
DO - 10.4271/2019-01-2158
M3 - Conference article
AN - SCOPUS:85084470809
SN - 0148-7191
JO - SAE Technical Papers
JF - SAE Technical Papers
IS - December
T2 - 2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting, JSAE 2019
Y2 - 26 August 2019 through 29 August 2019
ER -