| 제목 |
천연가스 전소엔진과 가솔린엔진의 성능과 배출가스 특성비교 |
| 분야 |
전기동력자동차 |
| 언어 |
Korean |
| 저자 |
김진영(동아대학교), 정성식(동아대학교), 하종률(동아대학교), 박원옥(동아대학교) |
| Key Words |
Compressed natural gas(압축천연가스), Emission(배출가스), Alternative fuel(대체연료), Performance(성능) |
| 초록 |
Natural gas is one of the promising alternative fuels because of the abundant deposits and the cleanness of emission gas. It can be used in conventional gasoline engine without major modification. Natural gas has some advantages than gasoline i.e. the high octane number. good mixing condition because of gas and wide inflamable limit. In the present study, a 1.8 ℓconventional gasoline engine is modified for, using the CNG as a fuel instead of gasoline. performance and emission characteristics are compared between gasoline and CNG with 4 cylinder SI Engine which is controlled by programable ECU. Parameters of experimentation are equivalence ratio, spark timing and fuels. We analyzed the combustion characteristics of the engine using the cylinder pressure i.e. ignition delay, combustion duration and cycle variation. As a result, CNG engine shows lower exhaust emissions but brake torque is slightly reduced compared to gasoline engine. Overall combustion duration is longer than that of gasoline because of lower burning speed.{{br}}{{br}} |
| 원문(PDF) |
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