Abstract—In this study, high speed gas sampling system was
used to collect gas samples in the engine cylinder. C1-C5 based
HC components behaviuor in the engine cylinder were
investigated experimentally during the flame period. Model
GSD-10 fast response gas sampling system was used to sample
gas in the cylinder. The high speed gas sampling valve mounted
on the engine cylinder was connected to the gas chromatograph
instrument directly, and samplings were continuously gathered
at the intended crank shaft angle ranges. The electro-magnetic
valve lift time was controlled by setting a time-lag from the
TDC reference point of the engine crank angle. Crank pulses
were provided by crank pulse generator. The generator consists
of a slit disc mounted on the engine shaft and a photo-electric
pick-up. It was designed to generate the crank pulse (360
pulses/rev) and the reference pulse (1 pulse/rev). In cylinder gas
samples were taken for 10-15 degree intervals after the ignition.
Samples taken during the flame period were approximately 60
degrees of crank angle after the spark plug ignited. In this study,
Agilent 7890A Gas Chromatography (GC) system was
employed to analyze C1-C5 HC component of the sampled gas
from the engine cylinder. GC-FID (Flame Ionization Detector)
analysis method was utilized to investigate hydrocarbon
components. Response time of hydrocarbon components were
listed. HC components variation with respect to crank angle
were plotted and interpreted.
Index Terms—Gas sampling system, in cylinder engine
emissions, hc components.
The authors are with Faculty of Engineering Mechanical Engineering,
Department Ankara Turkiye, Gazi University, Turkey (e-mail:
nuyucel@gazi.edu.tr; karaaslansalih@gazi.edu.tr; ndinler@gazi.edu.tr).
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Cite:Nuri Yucel, Salih Karaaslan, Ender Hepkaya, and Nureddin Dinler, "High Speed Gas Sampling System for Engine Cylinder
Emission Analyses," Journal of Clean Energy Technologies vol. 1, no. 2, pp. 144-147, 2013.
