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Abstract
In this investigation experimental work had been carried out to analyse the performance and emission characteristics of a single cylinder compression-ignition engine fuelled with diesel and diesel–karanja blend. Diesel–karanja blend was tested with non-preheated and preheated conditions. The effect of temperature on the diesel–karanja blend was also studied in this investigation. The blends, such as non-preheated blend and preheated blend showed specific fuel consumption values which were slightly higher than the diesel operation. The non-preheated blend and preheated blend gave lesser brake thermal efficiency when compared with the diesel operation. The preheated blend gave higher exhaust gas temperature at all loads when compared to diesel operation. Hydrocarbon emission and nitric-oxides emission decreased for both non-preheated blend and preheated blend at all loads when compared with the diesel operation. Carbon-monoxide values increased for both non-preheated blend and preheated blend at all loads when compared with diesel oil operation.