Durability testing of diesel engine using twenty per cent jatropha methyl ester blend

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Date
2006
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Publisher
MPUAT, Udaipur
Abstract
A 7.4 kW (Twin cylinder, water cooled) Diesel engine was operated on recommended B20 ((Jatropha methyl ester 20%: Hi-speed Diesel) blend. The standard 200 h durability test procedure as per EMA standard was followed to test engine durability for its performance, injection pressure and lubricating oil viscosity and emission. The properties of jatropha oil, jatropha methyl ester B20 and diesel were also determined in accordance with Bureau of Indian Standards. The performance was evaluated in terms of break power, BSFC, BSFC, BThE and Exhaust gas temperature with four load conditions specified by EMA (0, 50, 75 and 100 percent load). The injection pressure test, lubricating oil viscosity test and emission test were carried out at 45 h of engine operation. The results of the test indicated that the properties of the B20 were comparable with diesel. The performance of diesel engine was found satisfactory, the drop in brake power and Brake thermal efficiency was found non significant. Lubricating oil viscosity reduced with the time duration of 180 h however change was not significant up to 90 h. Injection pressure dropped with the test duration of 180 h due to carbon built up on injector tips. The exhaust emission CO, CO2, HC and NOX remains almost constant for 180h of test duration. The exhaust emission CO, CO2, HC and NOX was found to be increased with load however O2 was found to be decreased. The exhaust emission CO, CO2, HC was found to be decreased with B20 as compared to diesel. However NOX was found to be increased with B20 as compared to diesel.
Description
Durability testing of diesel engine using twenty per cent jatropha methyl ester blend
Keywords
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Citation
Talokar and Bhatt, 2006
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