Characteristics and energy distribution of modulated multi-pulse injection modes based diesel HCCI combustion and their effects on engine thermal efficiency and emissions

被引:3
作者
Liu B. [1 ]
Su W. [1 ]
Wang H. [1 ]
Huang H. [1 ]
机构
[1] State Key Laboratory of Engines, Tianjin University
来源
Frontiers of Energy and Power Engineering in China | 2007年 / 1卷 / 4期
关键词
Characteristics of heat release; Diesel homogeneous charge compression ignition (HCCI) combustion; Energy distribution; Thermal efficiency;
D O I
10.1007/s11708-007-0061-7
中图分类号
学科分类号
摘要
Cycle fuel energy distribution and combustion characteristics of early in-cylinder diesel homogenous charge compression ignition (HCCI) combustion organized by modulated multi-pulse injection modes are studied by the engine test. It is found that heat loss due to unburned fuel droplets and CO emission can be decreased effectively by injection mode regulation, and thermal efficiency can be potentially increased by 4%-12%. From the analyses of combustion process, it is also found that diesel HCCI combustion is a process with a finite reaction rate and is very sensitive to injection timing and injection mode. At injection timing of -90°CA ATDC, extra low NOx emissions can be obtained along with high thermal efficiency. © 2007 Higher Education Press and Springer-Verlag.
引用
收藏
页码:420 / 427
页数:7
相关论文
共 13 条
[1]  
Yoshinori I., Kenji K., Takeshi S., Et al., Trial of new concept diesel combustion system-Premixed compression-ignition combustion, SAE Paper 1999-01-0185, (1999)
[2]  
Hiromichi Y., Yasuo S., Jun'Ichi M., A study of di diesel combustion under uniform higher-dispersed mixture formation, JSAE Review, 18, pp. 247-254, (1997)
[3]  
Walter B., Gatellier B., Near zero NO<sub>x</sub> emissions and high fuel efficiency diesel engine: The NADITM concept using dual mode combustion, Oil & Gas Science and Technology-Rev IFP, 58, pp. 101-104, (2003)
[4]  
Takeda Y., Nakagome K., Niimura K., Emission characteristics of premixed lean diesel combustion with extremely early staged fuel injection, SAE Paper 961163, (1996)
[5]  
Yoshiaki N., Yasuo A., Yuzo A., Premixed lean diesel combustion (PREDIC) using impingement spray system, SAE Paper 2001-01-1892, (2001)
[6]  
Su W., Lin T., Zhang X., Et al., Characteristics of MULINBUMP-HCCI compound combustion and its effects on emissions and thermal efficiency, Transactions of CSICE, 22, pp. 193-202, (2004)
[7]  
Lin T., Su W., Pei Y., A new HCCI combustion technology in a di diesel engine based on the BUMP combustion chamber, Transactions of CSICE, 20, pp. 475-480, (2002)
[8]  
Lin T., Su W., Pei Y., A study of controlling of auto-ignition and combustion rate in diesel HCCI combustion, Progress in Natural Science, 13, pp. 518-522, (2003)
[9]  
Su W., Zhang X., Lin T., Et al., Study of pulse spray, heat release, emissions and efficiencies in a compound diesel HCCI combustion engine, Proceedings of ASME-ICE ASME Internal Combustion Engine Division 2004 Fall Technical Conference, (2004)
[10]  
Su W., Lin T., Pei Y., A compound technology for HCCI combustion in a di diesel engine based on the multi-pulse injection and the BUMP combustion chamber, SAE Paper 2003-01-0741, (2003)