EXPERIMENTAL PERFORMANCE ANALYSIS ON VARIABLE COMPRESSION RATIO ENGINE USING DIESEL AS FUEL

Author’s Name :  R Karthik | N Ravikumar | V Gopinath

Volume 03 Issue 03  Year 2016  ISSN No:  2349-3860  Page no: 21-23

Abstract:

An experimental investigation is carried out to analysis the performance of IC engine under variable compression ratios. The experiment has been conducted in variable compression ratio engine, single cylinder, 4-stroke, water-cooled diesel engine. Performance of the engine at the compression ratios of 14:1, 16:1, 18:1 and 20:1 are analyzed. From the analysis an attempt has been made to find the optimal compression ratio of engine based on considering the engine performance like brake thermal efficiency, specific fuel consumption, brake mean effective pressure and exhaust gas temperature. The compression ratio CR20 has less specific fuel consumption and more brake thermal efficiency, brake mean effective pressure and exhaust gas temperature compared to other compression ratios. However the exhaust gas temperature has increasing with increase in compression ratio, so which will affect the environment due to increase in atmospheric temperature. Hence based on the investigation the optimal compression ratio of this engine has been 18:1.

Keywords:

Variable compression ratio, Engine performance, Exhaust gas temperature

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