A Comparative Analysis on Performance and Emission Characteristics of Four Stroke CI Engine with Diesel, Hazelnut and Corn Bio-Diesel Blends as Fuel

Abstract

An experimental analysis was carried out to investigate two types of non edible oils (Hazelnut and Corn) blended with conventional diesel fuel approximately with proportions of 5%, 10 % , 15%, 20% and 25% by volume in a 4-stroke single cylinder, vertical, water cooled, Compression Ignition engine. Number of experimental trials were conducted with the above bio-diesel blends as fuel operated in the engine working at all loads from minimum to maximum. An analysis was made to compare the results such as exhaust emission characteristics like NOx emissions, CO emissions, smoke density, and total and partially unburned hydrocarbons. Performance parameters like brake specific fuel consumption(BSFC), brake Thermal efficiency(BTHE), and exhaust gas temperatures(EGT) for all blends prepared by blending the bio-diesels mentioned above with conventional diesel fuel separately with different proportions listed in the work. In this work CI engine is giving better performance with blend B20 for both diesels used as fuel when compare with remaining blends of both bio-diesels. But when compare with these B20 blends are showing marginal decrease in the performance parameters. Engine working with bio-diesel blends as fuel are showing noticeable reduction in exhaust emissions like carbon monoxides (CO), hydro carbons(HC) and slight increase in oxides of nitrogen(NOx) when compared with conventional neat diesel fuel.. Bio-diesel blend prepared from hazelnut bio-diesel showing better properties next to diesel fuel when compared with remaining bio-diesels used in the present work. This blend is showing better engine performance and decreased engine emissions when compared with Corn bio-diesel blends. After hazel nut oil immediately corn is giving better performance.