International Journal of Vehicle Structures and Systems

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In this study, Mango seed Oil Methyl Esters (MOME) that is produced by base catalyzed transesterification method has been chosen as a bio-fuel. Experiments were conducted with fuels of known cetane number at various loads on a single cylinder, constant speed, air-cooled, four stroke, and direct injection vertical diesel engine with rated power of 4.4 kW. All experiments were conducted at injection pressures 200 bar. For the same engine, the performance, combustion and emission analysis was carried out for various blends(20% and 100%) of MOME, diesel with grain alcohol(ethanol 0.1 pre-mixed ratio) on dual fuel mode. When the engine was operated with 20% of MOME and 0.1 pre-mixed ratio, the brake thermal efficiency was found to be very much closer to the BTE obtained with neat diesel due to more calorific value and more heat release rate during combustion. It is also observed that at this blend, Hydrocarbons (HC), Carbon monoxide (CO) and smoke density emissions were found to be less than that of diesel whereas NOx emissions were slightly more than that of diesel.

Keywords

Dual Fuel Engine, Grain Alcohol, Mango Seed Oil Methyl Esters, Compression Ignition Direct Injection Engine.
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