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	1. Experimental and Numerical Study on the Characteristics of Liquid Phase LPG and Diesel Fuel Sprays
	Xiao Helin ,Zhang Yusheng
	Dynamic and Electronic Engineering 04 August 2005
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:his paper presents a comparison study on the spray characteristics with different fuels and different fuel injection parameters. Both experimental and numerical studies were employed in investigating the macroscopic spray structure and the spray characteristics of liquid-phase LPG or diesel/LPG blended fuel injection from high-pressure injectors. The experimental work was conducted on a high-pressure constant volume vessel with high-speed photography. Experimental results show that the spray tip penetration of LPG is shorter than that of the diesel fuel, and the spray cone angle of the LPG is also smaller than that of the diesel fuel at the same injection conditions because LPG has better evaporation and atomization. Based on the computation of characteristics of LPG and diesel fuel spray using KIVA-3V2 and KH-RT breakup model, it is found that the spray tip penetrations at the initial injection stage agree well between numerical and experimental results. There is a difference between
	TO cite this article:Xiao Helin ,Zhang Yusheng . Experimental and Numerical Study on the Characteristics of Liquid Phase LPG and Diesel Fuel Sprays[OL].[ 4 August 2005] http://en.paper.edu.cn/en_releasepaper/content/2602


	2. A Study on Combustion and Emission Characteristics of Small DI Diesel Engine Fuelled with Dimethyl Ether
	Zhang Yusheng ,Mo Chunlan,Zhang Huiya,Lu Yihong,LU Yihong
	Dynamic and Electronic Engineering 05 February 2005
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	Abstract:n investigation has been carried out to evaluate the application feasibility of dimethyl ether(DME) as an alternative fuel using a small direct-injection diesel engine. The fraction of the fuel leakage from the fuel pump plunger pinion to the supplied fuel is determined by the fuel injection experiment under engine motored conditions. The effects of parameters such as engine load, advanced angle of fuel injection, nozzle opening pressure, exhaust valve open angle and DME fuelling rate on engine performance and exhaust emissions are investigated. The test results show that the performance and exhaust emission characteristics of DME are superior when compared to the original diesel engine. The experimental results demonstrate that the DME fueled engine should have an appropriate nozzle opening pressure and advanced angle of fuel injection. Retarded opening of the exhaust valve is found to result in a decrease in oxides of nitrogen emission. In this paper simulation of the auto-ignition
	TO cite this article:Zhang Yusheng ,Mo Chunlan,Zhang Huiya,Lu Yihong, et al. A Study on Combustion and Emission Characteristics of Small DI Diesel Engine Fuelled with Dimethyl Ether[OL].[ 5 February 2005] http://en.paper.edu.cn/en_releasepaper/content/1543

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