Author:
Agrawal Saurabh,Yamamoto Shuya,Horibe Naoto,Hayashi Jun,Kawanabe Hiroshi
Abstract
<div>A rapid compression and expansion machine (RCEM) was used to experimentally
investigate the ignition phenomena of dielectric-barrier discharge (DBD) in
engine conditions. The effect of elevated pressure and temperature on ignition
phenomena of a methane/air premixed mixture was investigated using a DBD
igniter. The equivalence ratio was changed to elucidate the impact of DBD on
flame kernel development. High-speed imaging of natural light and OH*
chemiluminescence enabled visualization of discharges and flame kernel.
According to experimental findings, the discharges become concentrated and the
intensity increases as the pressure and temperature rise. Under different
equivalence ratios, the spark ignition (SI) system has a shorter flame
development time (FDT) as compared with the DBD ignition system.</div>
Subject
Fuel Technology,Automotive Engineering,General Earth and Planetary Sciences,General Environmental Science
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