Technical Paper
Effect of Injection Pressures and Timings on the Performance Emission and Combustion Characteristics of a Direct Injection Diesel Engine Using Biodiesel-Diesel-Ethanol Blend
2013-04-08
2013-01-1699
The search for new alternate fuels is driven by supply uncertainty of petroleum-based fuel, increasing demand, higher crude oil prices and increasingly stringent environmental regulations. Though biodiesel can be an alternative fuel for diesel engine applications, there are several drawbacks, such as higher production cost, poor low temperature properties, higher viscosity and lower calorific value as compared to petroleum-based diesel fuel. The present investigation mainly concerns the effect of various injection pressures and timings on the performance emission and combustion characteristics of single-cylinder, four-stroke direct-injection diesel engine using biodiesel-diesel-ethanol blend as fuel at a constant speed of 1500 rpm. In this study, a blend of 40% waste cooking palm oil (WCO) methyl ester, 50% diesel and 10% ethanol was selected based on stability test conducted at an ambient temperature of 30°C.