| PLASMA COMBUSTION CHARACTERISTICS OF RESISTANCE AND
NON-RESISTANCE SPARK PLUGS IN A CONSTANT VOLUME
COMBUSTION CHAMBER (CVCC) |
| Yonghyun Choi 1,2, Joonsik Hwang 1,2, Kwonse Kim 3 |
1Department of Mechanical Engineering, Mississippi State University
2Center for Advanced Vehicular Systems (CAVS), Mississippi State University
3Automotive Engineering Department, Ajou Motor College |
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| ABSTRACT |
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This research work is attempted to investigate the internal combustion characteristics which include
combustion events using CH4 gases in a constant volume combustion chamber (CVCC). To visualize the flame event, the
experiment via a high-speed camera shows the snapshot through quartz of internal walls. CH4 gases mixed with air are
entered into a chamber via a mass flow controller. The ceramic capacitor is used to apply a plasma effect that can amplify the
ignition spark in terms of current amperage. The specification of experimental compositions is set as 400 cc combustion
chamber size, 1000 fps high speed camera, 15 ~ 25 kV spark coil, 0.2 J amplified energy, 1000:1 high voltage probe, 0 ~ 160
bar pressure sensor, 0 ~ 15 l/m MFC, 150 bar check valve, and 12.5 V battery. Particularly, the maximum pressure of
combustion is highly increased by 1 bar in a plasma plug model. As to an exhaust gas result, CO2 and NOx in a plasma plug
model are partially increased rather than in a conventional plug model. On the other hand, CO and HC are shown that in a
conventional plug model, exhaust gas amount is increased than in a plasma plug model. |
| Key Words:
Constant volume combustion chamber (CVCC), Capacitive discharge ignition (CDI), Eco-friendly
vehicle, Spark ignition energy (SIE), Carbon neutrality, Natural gas vehicle (NGV), Hydrogen vehicle (HV) |
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Corresponding Author.
Kwonse Kim , Email. 
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