COMPARATIVE STUDY ON THE EFFECT OF NANOADDITIVES WITH BIODIESEL BLEND ON THE PERFORMANCE AND EMISSION CHARACTERISTICS OF A LABORATORY CI ENGINE

Use of biodiesel has several disadvantages like higher density, lesser heating value, high fuel consumption and high oxides of nitrogen which affects the engine performance and emissions. These problems can be minimized by using additives in biodiesel. Many researchers have concluded that the additives play an important role for better combustion, fuel economy and improved characters. In the current study, it was decided to investigate the influence of cobalt oxide with fish oil biodiesel blend. The experiments were conducted on a four-stroke, direct injection laboratory compression ignition engine diesel for 40ppm, 80ppm and 120ppm of cobalt nano additive per liter is added with FOMEB20. The performance characters such as BSFC and BTE andemission characters such as carbon monoxide (CO), hydrocarbon (HC), oxides of nitrogen (NOx) were evaluated and the results were compared with diesel performance. Results have shown that the addition of nanoparticles to biodiesel resulted in reduced fuel consumption, improved brake thermal efficiency, reduction in CO and HC emissions and increased NOx emission due to better combustion quality of the fuel