EMISSION OPTIMIZATION OF 60 HP AGRICULTURAL TRACTOR ENGINE

Abstract

 In order to meet emission norms, modern diesel engines rely on methods of in-cylinder emission reduction and expensive exhaust after treatment devices. Engine manufacturers across the world are finding difficulty in maintaining balance between customers demand for better fuel consumption and obeying the stringent legislative emission regulations. The main goal of this experimental work is to investigate the effect of optimum combination of variables such as piston bowl diameter with the range of increase up to 1-2 mm precisely matched with engine. Then, the experimental tests were carried out and with the influence of injector configuration, NTP washer size was determined with selected piston bowl using systematic parameter variations. The combustion system under consideration was direct injection diesel engine with inline fuel pump used for off-road applications, used to explore the full potential of the combustion system. The tests were carried out to understand best combination of air and fuel system along with bowl modification related variables to achieve best combustion for emissions. The washer of 2 mm has been used in trial with modification in piston bowl to obtain good emission results.