摘要
基于F-T柴油、聚甲氧基二甲醚(PODE)、甲醇各自的理化特性,将三种燃料按照一定比例的掺混,以实现三种燃料的优势互补。F-T柴油比例固定不变,分别将PODE以10%、20%、25%、40%的百分比掺混到F-T柴油中,其余添加甲醇。使用AVL-Fire软件对掺混燃料的燃烧和排放特性进行仿真分析。研究了掺混燃料在不同工况下的燃烧和排放特性。结果表明:随着掺混燃料中PODE比例的升高,缸内燃烧压力无明显变化,压力峰值对应的曲轴转角基本保持不变,放热率曲线峰值降低,缸内最高燃烧温度降低;PODE的加入会导致掺混燃料的NOx排放量升高,排放量降低。
Based on the characteristics of F-T diesel,polyoxymethylene dimethyl ethers and methanol,a mixed fuel be composed of those fuels in a certain proportion.The proportion of F-T diesel was fixed,and polyoxymethylene dimethyl ethers was added to F-T diesel in the proportion of 10%,20%,25%and 40%,and the rest was methanol.The combustion characteristics and emission characteristics of the mixed fuel under different operating conditions were simulated and analyzed by AVL-Fire software.The results show that,with the increase of polyoxymethylene dimethyl ethers content in the mixed fuel,the in-cylinder pressure remains unchanged;the crank angle position of the peak of in-cylinder pressure remains unchanged;the peak of heat release rate decreases;the maximum temperature in cylinder decreases.The emissions of soot can be reduced when polyoxymethylene dimethyl ethers is added to the mixed fuel,but the emissions of NOx are increased.
作者
李鹏
朱建军
吴子龙
LI Peng;ZHU Jian-jun1;WU Zi-long(Department of Vehicle Engineering,College of Mechanical Engineering,Taiyuan University of Technology,Shanxi Taiyuan 030024,China)
出处
《机械设计与制造》
北大核心
2020年第10期15-20,共6页
Machinery Design & Manufacture
基金
山西省自然科学基金:(201701D121125)。
关键词
F-T柴油
聚甲氧基二甲醚
甲醇
燃烧特性
排放特性
F-T Diesel
Polyoxymethylene Dimethyl Ethers
Methanol
Combustion Characteristics
Emission Characteristics.
