가시화 엔진을 이용한 직분식 예혼합 압축착화 디젤엔진의 화염 및 연소특성
- Title
- 가시화 엔진을 이용한 직분식 예혼합 압축착화 디젤엔진의 화염 및 연소특성
- Other Titles
- Flame and Combustion Characteristics of D.I. HCCI Diesel Engine using a Visualization Engine
- Author
- 이기형
- Keywords
- HCCI; Visualization engine; Ignition point; Cool flame; Hot flame; 예혼합 압축착화; 가시화 엔진; 착화점; 냉염; 열염
- Issue Date
- 2002-11
- Publisher
- 한국자동차공학회
- Citation
- 한국자동차공학회 논문집, v. 10, no. 6, page. 100-107
- Abstract
- Combustion characteristics of diesel engine depends on mixture formation process during ignition delay and premixed flame region. Fuel and air mixture formation has a great influence on the exhaust emission. Therefore, the present study focused on the combustion mechanism of Homogeneous Charge Compression Ignition (HCCI) engine.
This study was carried out to investigate the combustion characteristics of direct injection type HCCI engine using a visualization engine. To investigate the combustion characteristics, we measured cylinder pressure and calculated heat release rate. In addition, we investigated the flame development process by using visualization engine system.
From the experimental result of HCCI engine, we observed that cool flame was always appeared in HCCI combustion and magnitude of cool flame was proportional to magnitude of hot flame. And we also found that fuel injection timing is more effective to increase lean homogeneous combustion performance than intake air temperature. Since increasing the intake air temperature improved fuel vaporization before the fuel atomizes, we concluded that increasing the temperature has disadvantage for homogeneous premixed combustion.
- URI
- https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00525214https://repository.hanyang.ac.kr/handle/20.500.11754/158037
- ISSN
- 1225-6382; 2234-0149
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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