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	Experimental and computational studies on gasoline HCCI combustion control using injection strategies
	Wang, Zhi ; Wang, Jian-Xin ; Shuai, Shi-Jin ; Tian, Guo-Hong ; An, Xin Liang
	2010-05-11 ; 2010-05-11
关键词	Engineering, Mechanical
中文摘要	Homogeneous Charge Compression Ignition (HCCI) has challenges of ignition control. In this paper, HCCI ignition timing and combustion rate were controlled by two-stage direct injection (TSDI) strategies on a four-stroke gasoline HCCI engine. TSDI strategy was proposed to solve the two major problems of HCCI application-ignition control and load extension. Both simulation and experiments were carried out on a gasoline HCCI engine with negative valve overlap (NVO). An engine model with detailed chemical kinetics was established to study the gas exchange process and the direct injection strategy in the gasoline HCCI engine with TSDI and NVO. Simulation results were compared with experiments and good agreement was achieved. The simulated and experimental results provided a detailed insight into the processes governing ignition in the HCCI engine. Using TSDI, the fuel concentration, temperature as well as chemical species can be controlled. The effects of different injection parameters, such as split injection ratio and start-of-injection (SOI) timing, were studied The experimental results indicate that, two-stage direct injection is a practical technology to control the ignition timing and combustion rate effectively in four-stroke gasoline HCCI engines. Both the high load and low load limits of HCCI operation were extended.
语种	英语 ; 英语
出版者	ASME-AMER SOC MECHANICAL ENG ; NEW YORK ; THREE PARK AVE, NEW YORK, NY 10016-5990 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25433]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Zhi,Wang, Jian-Xin,Shuai, Shi-Jin,et al. Experimental and computational studies on gasoline HCCI combustion control using injection strategies[J],2010, 2010.
APA	Wang, Zhi,Wang, Jian-Xin,Shuai, Shi-Jin,Tian, Guo-Hong,&An, Xin Liang.(2010).Experimental and computational studies on gasoline HCCI combustion control using injection strategies..
MLA	Wang, Zhi,et al."Experimental and computational studies on gasoline HCCI combustion control using injection strategies".(2010).

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