Investigation of performance and emission characteristics of four stroke single cylinder diesel engine with cotton-seed biodiesel

Abstract

In present article, engine performance and emission characteristics were investigated with various blends of cotton-seed bio diesel and diesel. Reason to choose cotton seed bio diesel is its thermophysical properties which is identical with diesel. It also consists of higher oxygen content which directly improves combustion efficiency of the engine. Four Stroke, Single cylinder, diesel engine was tested under various blends consist of 5%, 10%, 15% and 20% (by Vol) of cotton seed biodiesel. Experimental results found no significant variation in brake thermal efficiency up to 10% biodiesel blend then it found to be dropped gradually. Brake thermal efficiency decreased by 12% at 20% biodiesel blend. CO & HC emissions exhibited decreasing trends with percentage increase in biodiesel concentration. Increase in NOx emission was insignificant up to 10% biodiesel blend. It can be further noted that 10% biodiesel diesel blend shows optimized performance and emission results.