FT반응 Off-gas를 이용한 고압축비 전기점화 엔진의 연소 및 배기가스 특성에 관한 연구

• Published in: 한국분무공학회지 Vol. 23; no. 3; pp. 114 - 121
• Main Authors: 정탄, Tahn Chung, 이준순, Junsun Lee, 이용규, Yonggyu Lee, 김창업, Changup Kim, 오승묵, Seungmook Oh
• Format: Journal Article
• Language: Korean
• Published: 한국분무공학회 30.09.2018
• Subjects: Compression ratio; Emissions; Off-gas; Stoichiometric ratio; Syngas; 기계공학; 배기가스; 압축비; 오프가스; 이론공연비; 합성가스
• ISSN: 1226-2277; 2288-9051
• DOI: 10.15435/JILASSKR.2018.23.3.114

FT process is a technology of chemical reactions that converts a mixture of carbon monoxide and hydrogen into liquid hydrocarbons. During the FT process unreacted gas, known as Off-gas which has low-calorie, is discharged. In this study, we developed an engine that utilize simulated Off-gas, and studied the characteristics of the engine. The off-gas composition is assumed to be H 2 70%, CO 15%, CO 2 15% respectively. Under stoichiometric air-fuel ratio, the experiment was conducted at WOT and IMEP 0.3 Mpa changing compression ratio. Ignition timing was applied with MBT timing. Maximum indicated thermal efficiency 37% was achieved at compression ratio 15 under WOT. CO, CO 2 and NOx were influenced by changing compression ratio, and CO emission was satisfied with the US Tier 4 standard for nonroad engine over the entire experimental conditions.