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Experimental Investigation on Performance and Emission Characteristics of a Single Cylinder CRDI Engine Fueled with Diesel-Methanol Blend

Sridhar Sahoo, Chinmay Nayak, Srinibas Tripathy, Dhanajay Srivastava
  • Technical Paper
  • 2019-28-2380
Published 2019-11-21 by SAE International in United States
Diesel engine is widely used for its high thermal efficiency and better fuel efficiency. However, increasing usage of petroleum fuel and environmental degradation motivates to use renewable biofuel as a replacement to conventional diesel. Biofuel produced from non-edible sources can be used as a partial substitute of diesel for the significant growth of fuel economy and reduction of environmental pollution. Methanol can be implemented as a blend fuel in the diesel without affecting engine design. In this paper, we study the effect of diesel-methanol blends and injection parameters in particular, start of injection (SOI) and fuel injection pressure (FIP) on a common rail direct injection (CRDI) diesel engine performance and emission were investigated. Four blends were prepared by mixing diesel with methanol (5%, 10%, 15% and 20% by mass) and adding a certain amount of oleic acid and Iso-butanol to get a stable blend. Experiments were performed at an engine speed and load of 1500 rpm and 15 Nm, respectively. FIP governs air-fuel mixture preparation and fuel atomization which control combustion behavior of the engine,…
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