Research Information System
3rd International Conference on Geological and Environmental Sciences, Singapur, Singapore, 14 - 16 May 2014, pp.20-24, (Full Text)
Diesel fuel is largely utilized in the transport, agriculture, commercial, domestic and industrial sectors for the generation of power energy. Vegetable oils present a very hopeful alternative fuel to diesel oil, since they are renewable, biodegradable and clean burning, having properties analogous to that of diesel. In this theoretical study, effects of different injection angles, compression ratios and different piston bowls on the engine performance and emissions were investigated by using two different fuels which are standard diesel (D2) and RME (Rapeseed Oil Methyl Ester). Simulations were carried out with DIESEL-RK software that calculates the parameters of engine power, torque, specific fuel consumption and the emissions of NOx, with an engine speed of 1500 rpm. It was shown that the increase of compression ratio and injector angle increased power and reduced specific fuel consumption while having higher NOx emission negatively in all engine and fuel conditions. Additionally, the best optimization parameter having ZMZ-514 piston bowl with at 55 degree injection angle is considered as optimized parameters despite of high NOx emission value.