Comparison of the influence of diesel-biodiesel and diesel-diglyme on the particulate emissions from a direct injection diesel engine
Experiments were conducted on a 4-cylinder direct-injection diesel engine using ultralow sulfur diesel blended with biodiesel and diglyme to investigate the particulate emissions of the engine under five engine loads at the maximum torque engine speed of 1800 rpm. Five biodiesel blended fuels and five diglyme blended fuels with oxygen concentrations of 2％, 4％, 6％, 8％ and 10％ were used. With the increase of oxygen content in the blended fuels, the smoke opacity, the particulate mass concentration, the brake specific particulate emissions and the geometric mean diameter of particle all decrease, and the reductions are more obvious for the biodiesel blended fuels, while the proportion of soluble organic fraction in the particle increases with the biodiesel blended fuels having slightly higher proportion of soluble organic fraction than of diglyme blends. In addition, the number concentration of total particle increases gradually for biodiesel blended fuels. For diglyme blended fuels, the addition of diglyme into diesel also increases the number concentration of the total particle, but the peak values of the total particle correspond to the blend containing 2％ oxygen and the values decrease gradually with the further increase of oxygen content.
Di Yage C.S. Cheung Huang Zuohua
Xian Jiaotong University Hongkong polytechnic University Hongkong polytechnic University Xian Jiaotong University
国际会议
天津
英文
1-8
2009-08-19（万方平台首次上网日期，不代表论文的发表时间）