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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제14권 제3호
발행연도
2006.5
수록면
170 - 177 (8page)

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초록· 키워드

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Hydrogen can extend the lean misfire limit to a large extent when it is mixed with conventional fuels for a spark ignition engine. In this study, hydrogen-enriched gaseous fuels by reforming process were simulated according to their proportions of H₂, CO, CO₂ and N₂ gases. Pure hydrogen and two different hydrogen-enriched gaseous mixtures(A-, B-composition) were tested for their basic effects on the engine performances and emissions in a single cylinder research engine. A- and B-composition showed different results from 100% H₂ addition because air/fuel mixtures were more diluted by their additions. Even though the energy fraction of reformed gases was increased, combustion stabilities and lean misfire limits were not sensitively improved. It means that combustion augmentation by H₂ addition was offset by the charge dilution of N₂ and CO₂. In addition, the low flammability of CO gas deteriorated thermal efficiencies. CO emission was drastically increased with B-composition which included higher CO component. However, NO<SUB>x</SUB> was reduced as energy fraction(X<SUB>e</SUB>) rised except for the case of 100% H₂ addition at λ=1.2 and was , for A-composition, lowered to a factor of ten when compared with that of H₂ addition. HC emissions were largely influenced by COV<SUB>imep</SUB> due to misfire and partial burns.

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Abstract
1. 서론
2. 실험장치
3. 실험방법
4. 실험결과
5. 결론
References

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