Experimental investigation of CI engine performance and emissions characteristics of CI engine fuelled with different bio fuel –diesel blended fuel

Abstract

Bio fuel's versatility to utilize in compression ignition engine by reducing the viscosity of the fuel. This paper deals performance and emission characteristics of four stroke single cylinder diesel engine coupled with eddy current dynamometer. The fuel was prepared in the combinations of B10 CH(10% camphor oil +90% diesel), B20 CH (20% camphor oil +80% diesel), B10 E(10% eucalyptus oil +90% diesel), B20 E (20% eucalyptus oil +80% diesel), B10 LG (10% lemon grass oil + 90% diesel), B20 LG(20% lemon grass oil + 80% diesel), B10 CSO(10% cotton seed oil +90% diesel), B20 CSO( 20% cotton seed oil + 80% diesel). The experiment was conducted by the varying the load (20%, 40%, 60% and 80%) at constant speed 1500rpm. The result shows that BTE is higher in B20E fuel 7.7% and lower in B10LG fuel 2%. BSFC higher in B20CH and lower in B20E. CO emissions are higher in B10CSO, HC emission are higher in B20CSO, B20LG higher in NOx emissions and lower in B10CH fuel CO2 emission is higher in B20CSO and lower in CO2 emissions. These are results obtained from the performance of engines. B20E produces better performance for the IC engines.