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Combustion Characteristics of Compressed Ignition Type LPG With Various Blending Ratios of Biodiesel
Published May 20, 2009 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
This research aims to investigate the combustion characteristics by using LPG fuel under compression ignition type engine to develop a highly efficient LPG engine. LPG fuel is an environmentally friendly fuel because of low CO2 emission. A high speed digital camera and high pressure common-rail injector were applied to visualize penetration distance, fuel evaporation and spray angle of mixed fuel. For the combustion conditions such as flame diffusion and ignition delay, blending ratios of biodiesel with LPG fuel were altered to 0 wt% and 20 wt% by various EGR rates. It results that ignition delay was decreased when EGR rates were decreased and cetane number was increased depending on the biodiesel blending ratio.