An experimental study on the performance and exhaust emissions of a diesel engine fuelled with soybean oil methyl ester

作者：Song J T^*; Zhang C H

来源：Proceedings of the Institution of Mechanical Engineers - Part D: Journal of Automobile Engineering , 2008, 222(D12): 2487-2496.

DOI：10.1243/09544070JAUTO932

• automotive engineering
• supercharged diesel engine
• biodiesel
• soybean oil methyl ester
• exhaust emissions
• performance

In order to optimize the application of biodiesel for diesel engines, the emissions, fuel economies, and power performances of diesel, soybean oil methyl ester, and its blends with diesel from 10 to 80 wt % were compared and analysed by bench tests of a supercharged direct injection (DI) diesel engine. The exhaust emissions (smoke density, NO(x), CO, and HC), the brake specific fuel consumption rate, the specific energy consumption rate, and the brake power and torque were investigated under different engine loads and speeds. Experimental results show that, compared with diesel fuel, with increase in the soybean oil methyl ester percentage in the blends, smoke density and HC decrease while NO(x) emissions increase, CO increases under full load at 2000 r/min but decreases at 3000 r/min, specific energy consumption decreases and brake specific fuel consumption increases under different loads at 2200 r/min, and brake power and torque increase at different speeds under full load. A biodiesel content of 20 wt % is an optimum compromise between increased NO(x) and reduction in smoke density.

• 出版日期2008-12
• 单位长安大学