Abstract:The engine bench test was carried out on 186F diesel engine fuelled with methanol/biodiesel blend. The cetane number of the blend was 46, 50 and 55. The emission pollutants and fuel consumption of the engine fuelled with methanol/biodiesel was measured to investigate the effect of cetane number on pollutant and economy. Results show that, at rated condition, when the cetane number of methanol/biodiesel is 46, 50 and 55, the NOx concentration is 155×10-6, 142×10-6 and 135×10-6, smoke is 3.4, 2.3, 3.0, the HC concentration is 89×10-6, 193×10-6 and 284×10-6, and the CO concentration is 0.5%, 0.8% and 1.2%. With the increase of cetane number, the NOx concentration and smoke are reduced, but HC and CO concentrations are increased. Excessively high cetane number of methanol/biodiesel will significantly increase the pollutant concentration.
李瑞娜, 王忠, 李铭迪, 赵洋, 倪培永, 刘帅. 十六烷值对甲醇/生物柴油排放污染物影响的试验研究[J]. 中国环境科学, 2014, 34(7): 1684-1689.
LI Rui-Na, WANG Zhong, LI Ming-Di, ZHAO Yang, NI Pei-Yong, LIU Shuai. Experimental study of cetane number on methanol/biodiesel emission of pollutant. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(7): 1684-1689.