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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (03): 280-285.DOI: 10.3969/j.issn.1674-8484.2015.03.012

• 汽车节能与环保 • 上一篇    下一篇

柴油/ 聚甲氧基二甲醚混合燃料的柴油机性能与排放试验

杨皓，李兴虎，牟鸣飞，李雪浩   

  1. 北京航空航天大学 交通科学与工程学院， 北京 100191， 中国
  • 收稿日期:2015-07-06 出版日期:2015-09-25 发布日期:2015-10-12
  • 通讯作者: 李兴虎，教授。E-mail: lxh@buaa.edu.cn
  • 作者简介:杨皓(1984 － )，男( 汉)，河北，博士研究生。E-mail: yanghao2525@163.com
  • 基金资助:

    汽车安全与节能国家重点实验室开放基金(KF14112) ；内燃机燃烧学国家重点实验室开放基金(K2014-6)

Experiments on the performances and emissions of diesel engine fuelled with diesel/polyoxymethylene dimethyl ethers blends

YANG Hao, LI Xinghu, MU Mingfei, LI Xuehao   

  1. School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
  • Received:2015-07-06 Online:2015-09-25 Published:2015-10-12

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摘要：

试验研究了燃用不同掺混比的聚甲氧基二甲醚PODE2-4 混合燃料时柴油机的动力、经济和排
放特性。试验在未经改动的R180 柴油机上进行，转速1 200、1 600、2 400 r/min，负荷20%~100%，
使用了3 种混合燃料，添加PODE2-4 的体积百分比为5%、10% 和20%。结果表明：随着PODE2-4 掺混
比的增大，柴油机功率和转矩下降，燃油消耗率和热效率增加。当掺混比达20% 时，柴油机外特性
功率和转矩下降5.3%，有效燃油消耗率增加13.6%，有效热效率增加1.8%。在各种转速、负荷时，
随着掺混比的增大，HC 和CO 排放下降，排气温度和NOx 排放增加，消光系数明显下降。因此，在
低比例掺混条件下，PODE2-4 适合作为柴油的添加组分使用。

关键词: 柴油机, 发动机性能, 排放, 聚甲氧基二甲醚, 混合燃料

Abstract:

Experimental study was done on the power, economy and emissions characteristics of the diesel
engine fueled with different blend ratio of PODE2-4 blend fuel. Three kinds of blend fuel with different volume
ratio (5%, 10%, and 20%) were tested on a R180 diesel engine without modification, at the speed of 1 200,
1 600, 2 400 r/min and the power load of 20% to 100%. The results show that the diesel engine power and
torque are decreased with the brake speci?c fuel consumption and the brake thermal efficiency increasing when
PODE2-4 blending ratio in the blended fuel increasing. The brake speci?c fuel consumption is increased by
13.6%, with the brake thermal efficiency increasing an average of 1.8% while the diesel engine power and torque
decreasing by an average of 5.3%, when fuel blended 20% PODE2-4. HC and CO emissions are decreased with
exhaust temperature and NOx emissions increased, while extinction coefficient decreased significantly with the
increase of PODE2-4 blending ratio under different loads and speeds conditions. Therefore, PODE2-4 is suit for
using as diesel fuel additive component at low blending ratio.

Key words: diesel engine, engine performance, emissions, polyoxymethylene dimethyl ethers, blended fuel