AN OVERVIEW OF EXHAUST GAS RECIRCULATION (EGR) EFFECT ON EMISSION CHARACTERISTICS OF DIESEL ENGINE FUELED WITH BIODIESEL

Vegetable oils present very promising alternate to Diesel oil since they are renewable and have similar properties. Recent concerns over the environment, increasing fuel prices and scarcity of its supply have promoted the interest in development of alternative sources for petroleum fuels. Bio-diesel is an attractive alternative fuel which is renewable, non-toxic, reduces carbon monoxide and hydrocarbon emission due to higher content of oxygen. Though many advantages biodiesel is not so popular because of high NOx emission. So to take advantage of this alternative fuel one EGR technique has been developed to reduce NOx emission as it enables lower flame temperature and oxygen concentration in combustion chamber. The purpose of this Paper is to determine the possibility of using biodiesel as an alternative fuel for petro diesel and effect of EGR on emission Characteristic of Engine.