A Comparison of performance parameters with use of ethanol & methanol fuel blends, and engine speed of SI engine
Sandeep Kumar Kamboj, Munawar Nawab Karimi
Abstract
Sandeep Kumar Kamboj, Munawar Nawab Karimi
Abstract
In this study, the performance parameters are investigated for a single cylinder, four-stroke, spark-ignition engine with varying speed (1200 to 1750 rpm) and different blends of fuels. For this analysis, Iso-octane (base fuel) and blends of ethanol with base fuel (E5, E20) and methanol with base fuel (M5 & M20) are used. The results show that the value of engine torque and volumetric efficiency are higher for E20 and M20 fuels as compared to base fuel. The thermal efficiency of M5 fuel is 35% higher than the base fuel and around 5% higher than the E5 fuel. The indicated power of E5 and E20 fuels are higher than the base fuel. In this study, E20 fuel gives best results in case of brake power analysis. The result also shows that indicated power, brake power, friction power, IMEP and exhaust temperature increases with the increase in engine speed for all the tested fuels. Indicated power, IMEP and friction power was highest for E5 fuel.
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In this study, the performance parameters are investigated for a single cylinder, four-stroke, spark-ignition engine with varying speed (1200 to 1750 rpm) and different blends of fuels. For this analysis, Iso-octane (base fuel) and blends of ethanol with base fuel (E5, E20) and methanol with base fuel (M5 & M20) are used. The results show that the value of engine torque and volumetric efficiency are higher for E20 and M20 fuels as compared to base fuel. The thermal efficiency of M5 fuel is 35% higher than the base fuel and around 5% higher than the E5 fuel. The indicated power of E5 and E20 fuels are higher than the base fuel. In this study, E20 fuel gives best results in case of brake power analysis. The result also shows that indicated power, brake power, friction power, IMEP and exhaust temperature increases with the increase in engine speed for all the tested fuels. Indicated power, IMEP and friction power was highest for E5 fuel.
Key concepts: Automotive engineering, Spark-ignition engine, Octane rating, Brake specific fuel consumption, Engine power, Brake, Mean effective pressure, Ignition system