Experimental Investigation of Performance, Emission and Combustion Characteristics on a Single Cylinder Four Stroke Low Heat Rejection (LHR) Engine using Neem Biodiesel with Exhaust Gas Recirculation (EGR)

The performance, emission and combustion characteristics of a single cylinder four stroke LHR engine when fuelled with Neem biodiesel and are investigated and compared with the results of standard diesel with Exhaust Gas Recirculation system. It has demonstrated that biodiesel fuelled engine deliver less carbon monoxide, unburnt hydrocarbon and smoke emission contrasted with diesel fuel but higher NOx emission. EGR is as viable method to reduce NOx from LHR engine as it brings lower flame temperature and decrease oxygen concentration in the combustion chamber. The primary point of this exploration is to examine the utilization of biodiesel and EGR at the same time to diminish the emissions of all regulated pollutants from diesel engine. For this a single cylinder, water cooled, constant speed direct injection LHR engine was utilized and EGR was produced and fitted in engine. Different emissions, for example, HC, NOx, CO and smoke opacity were measured. The engine parameters were computed from measured data.