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- W2315206885 abstract "합성가스(SNG)는 석탄 가스화를 통하여 얻어지는 가스연료로서, 고유가로 인한 천연가스가격 상승을 대비할 수 있는 대체연료 중의 하나로 주목받고 있다. 본 연구에서는 메탄 90.95%, 프로판 6.05%와 수소 3%의 조성비를 갖는 SNG연료 모사가스와 압축천연가스 (CNG)를 11리터 급 CNG 엔진에 적용하여 연소 및 배기 특성을 비교실험 하였다. 연료공급시스템, 분사시기 등 엔진의 연소제어인자를 일정하게 하고 전부하 운전조건에서 엔진회전수 변화에 따른 출력, 열효율, 연소 안정성 및 배기특성을 비교하였다. 1260rpm, 전부하 운전조건에서 노킹특성도 분석하였다. SNG 연료를 사용했을 때 출력 저하 없이 연소안정성이 향상되어 열효율이 증가하였다. 질소산화물(<TEX>$NO_x$</TEX>)의 배출은 CNG연료의 경우에 비해 증가되었으나 이산화탄소(<TEX>$CO_2$</TEX>)의 배출은 감소하였다. SNG 연료를 이용하여 운전할 경우 내노킹성이 향상되었다. Synthetic natural gas(SNG), acquired from coal, is regarded as an alternative to natural gas since a rise in natural gas due to high oil price can be coped with it. In the present study, 11-liter heavy duty compressed natural gas(CNG) engine was employed in order to examine the combustion and emission characteristics of SNG. The simulated SNG, made up 90.95% of methane, 6.05% propane and 3% hydrogen was used in the experiment. Power output, thermal efficiency, combustion stability and emission characteristics were compared to those with CNG at the same engine operating conditions. Knocking phenomenon was also analyzed at 1260 rpm, full load condition. Combustion with SNG was more stable than CNG. Nitrogen oxides emissions increased while Carbon dioxides emissions decreased. Anti-knocking characteristics were improved with SNG." @default.
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- W2315206885 date "2015-12-31" @default.
- W2315206885 modified "2023-10-14" @default.
- W2315206885 title "Characteristics of Combustion and Emission for Synthetic Natural Gas in CNG Engine" @default.
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- W2315206885 doi "https://doi.org/10.7842/kigas.2015.19.6.8" @default.
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