Characteristics of 4-Stroke Single Cylinder Ci Engine using Cotton Seed Oil Blended With Diesel

Abstract

In four different compositions a cotton oil methyl ester is prepared and combine with diesel, ranging from 5% to 20% in 5% stages Tests were performed at a constant speed of 1500 rpm in a single cylinder variable compression ratio diesel engine. The highest thermal brake output and the lowest specific fuel consumption was observed for a compression ratio of 15 and 17 percent of the biodiesel blend. At a compression ratio of 17, the average emission of nitric oxide was 205 ppm and the total emission of diesel was 155 ppm. Significant decrease in emissions of smoke and carbon monoxide was observed in the maximum load range and compression ratio. For the prepared biodiesels, enhanced heat release characteristics have been noted. The results show that the biodiesels can be safely utilized without any modification of engine ..