Abstract
Abstract: Variable Compression Ratio (VCR) engine test can be used to determine the effect of Compression Ratio (CR) on the performance and emissions of the engine. The combustion situation, when provided with a pressure transducer. The performance frequency parameters like efficiencies, power, and specific fuel consumption are determined. The combustion phenomenon is also observed through this work, we can find the optimum compression ratio for which the best performance is possible. In order to find out the optimum compression ratio, experiments were carried out on a single-cylinder four-stroke variable compression ratio engine. Tests were carried out at compression ratios of 18, 17, and 16 at different loads the performance characteristics of the engine like Brake power (BP), Thermal Efficiency, Brake Specific Fuel Consumption (BSFC). A variable compression ratio engine is able to operate at different compression ratios, depending on particular vehicle performance needs. The VCR engine is optimized for the full range of driving conditions, as acceleration, speed, and load. Keywords: Performance, Compression ratio, Load, Break Power, William Line’s Method, Emission, Thermal Efficiency, Diesel Engine, Fuel Consumption
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