Browse Publications Technical Papers 2007-01-0072
2007-01-23

A Study of Quantitative Impact on Emissions of High Proportion RME-Based Biodiesel Blends 2007-01-0072

Previous work of the authors' group has shown that biodiesel fuels as a replacement for conventional diesel fuel in engine combustion can reduce PM level dramatically while lowering some other regulated emissions as well. It has shown that these fuels have the potential to increase the overall engine performance due to their lower sulphur and/or aromatics content compared with standard diesel fuels. This paper presents a study on a single cylinder naturally aspirated direct injection (DI) diesel engine, equipped with a pump-line-nozzle injection system, operating with varied biodiesel fuel blends (0%, 25%, and 50% of RME by volume) with ultra low sulphur diesel fuel (ULSD). The detailed analysis of the measurement data shows that the ignition delay and exhaust emissions are affected by the proportion of biodiesel due to the effect of different physical and chemical properties of the two fuels. The work presented here precedes an ongoing study concerning quantitative impact of high proportion biodiesel blends on exhaust gas emissions in a commercial multi cylinder engine prototype.

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