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Combustion Characteristics of Compressed Ignition Type LPG With Various Blending Ratios of Biodiesel
Technical Paper
2009-08-0276
Sector:
Event:
JSAE Spring Conference
Language:
English
Abstract
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.