Study on Influence of Tailored In-cylinder Flow on HCCI Combustion in a Rapid Compression and Expansion Machine
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20229015
- Paper/Info type
- SETC
No.2022-32-0015
- Pages
- 1-7(Total 7 p)
- Date of publication
- Oct 2022
- Publisher
- JSAE
- Language
- English
- Event
- SETC2022
Detailed Information
| Author(E) | 1) Yiwen Zhong, 2) Tatsuya Kuboyama, 3) Yasuo Moriyoshi, 4) Kei Yoshimura |
|---|---|
| Affiliation(E) | 1) Chiba University, 2) Chiba University, 3) Chiba University, 4) SUZUKI MOTOR CORPORATION |
| Abstract(E) | The purpose of this paper is to investigate the mechanism of tailored in-cylinder flow on mitigation of heat release by optical experiments to find a way to extend the high load limit of homogeneous charge compression ignition (HCCI) combustion. We constructed an experimental system that can generate various temperature distributions and airflow patterns in the cylinder (based on a rapid compression expansion machine). The effects of tumble flow on the heat release rate and the pressure rise rate of HCCI were investigated experimentally by combustion analysis and direct photography of combustion. The in-cylinder appropriate turbulence was created by the special piston which was equipped with a flow guide plate that could change the intensity and scale of the flow by special settings. Meanwhile, the ambient temperature distribution in the cylinder was determined by the wall temperature controlling system. The direct photographs show that with enhanced in-cylinder flow, multiple ignition points are formed in the combustion chamber, the heat release rate is relatively small, and the increase in the pressure rise rate is suppressed. The pressure rise rate varies with variations in the turbulence intensity. |
