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논문 기본 정보

자료유형
학술저널
저자정보
강정구 (한국해양대학교) 류명록 (한국해양대학교) 박권하 (한국해양대학교)
저널정보
한국동력기계공학회 동력시스템공학회지 동력시스템공학회지 제26권 제3호
발행연도
2022.6
수록면
40 - 47 (8page)
DOI
10.9726/kspse.2022.26.3.040

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초록· 키워드

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Regulations on exhaust emissions of marine engines are being strengthened, and many related technologies are being developed. In this study, the combustion characteristics of the engine were analyzed for the propane conversion of a 225 kW high-speed engine. The movement of the piston was simulated using a variable grid from 120 degrees before TDC to 120 degrees after TDC, and the ignition timing was analyzed by changing the ignition timing from 20 degrees before TDC to five degrees after TDC at intervals of five degrees. Residual fuel mass fraction was rapidly reduced to 80% during ten degrees of crank angle after ignition, and then decreased slowly thereafter. After combustion, the amount of residual fuel increased significantly when the ignition timing was later than five degrees before TDC. Nitrogen oxide was greatly reduced as the ignition timing was delayed. The engine output was highest at five degree before TDC and decreased when the ignition timing was earlier or later. Considering performance and exhaust emissions, the optimal ignition timing is five degrees before TDC under this engine operating condition.

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Abstract
1. 서론
2. 수학적 모델 및 계산조건
3. 결과 및 고찰
3. 결론
References

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