지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.5
- 수록면
- 214 - 220 (7page)
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초록· 키워드
오류제보하기
Biogas can be obtained from biogenic materials through an anaerobic digestion process. Since biogas has lower calorific value than conventional gas fuels because of its inert gas components, and the composition of biogas varies depending upon the origin of the anaerobic digestion process, appropriate combustion strategies need to be established to maintain stable combustion when it applies to engine applications. In this study, efforts have been made to investigate characteristics of engine performance and emissions depending on variation of inert gas composition in biogas. Experiment has been carried out with a simulated biogas to the SI engine. The fractions of CO₂ and N₂ in the simulated biogas were changed from 0 to 60% by volume respectively. Experimental results show that the MBT spark timing was advanced as the fraction of inert gases in the biogas increased. In addition, increasing inert gas compositions in the biogas can reduce the NO<SUB>x</SUB> emissions. Moreover, NO<SUB>x</SUB> emission drop in CO₂ case was more significant than that of N₂ because of higher heat capacity of CO₂, while THC emissions showed opposite tendency. Thermal efficiency was slightly increased in N₂ case with elevation of N₂ content in biogas due to the decreased heat loss and PMEP. However, there is no difference in CO₂ case because deteriorated flame propagation speed countervails the above mentioned thermal efficiency increasing factors.
목차
Abstract
1. 서론
2. 실험장치 및 방법
3. 실험결과 및 고찰
4. 결론
References
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UCI(KEPA) : I410-ECN-0101-2013-556-001353751