Comparison of PM Emission from DME and Diesel Engine
Though diesel engine Particulate Matter (PM) emission was widely investigated, the contribution of diesel fuel and lubricant were less studied because of the engine can not run without lubrication. Dimethyl Ether (DME) is an alternative fuel for diesel. Its molecular formula is CH3-O-CH3. When it is burned, there is no carbon or PAHs generated like conventional natural gas, gasoline, diesel, biodiesel, et al. To take the advantage of DME combustion, a CI engine was applied to run on diesel and DME, respectively, to study its PM emission characteristics. In the study, HORIBA MDLT-1302 system was used to sample the engine exhaust PM mass emission. The filter paper was weighted by a Sartorius ME5 electronic balance. PM number vs diameter distribution was detected by an Electrical Low Pressure Impactor (ELPI). The experimental results show that DME engine PM number is some 2 order lower than that of diesel engine. Lubricant contributes more under high engine load and speed conditions. Compared with DME operating conditions, lubricant contributes about 20% of PM mass.
Shenghua Liu Jin Huang Yanju Wei
Xian Jiaotong University,China
国际会议
上海
英文
1-11
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）