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1200、1600、2400r／min，负荷20％～100％，使用了3种混合燃料，添加PODE纠的体积百分比为5％、10％和20％。结果表明：随着PODE2。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，PODE州适合作为柴油的添加组分使用。
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 specific fuel consumption and the brake thermal efficiency increasing when PODE2-4 blending ratio in the blended fuel increasing. The brake specific 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.
出处
《汽车安全与节能学报》
CAS
CSCD
2015年第3期280-285,共6页
Journal of Automotive Safety and Energy
基金
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)
关键词
柴油机
发动机性能
排放
聚甲氧基二甲醚
混合燃料
diesel engine
engine performance
emissions
polyoxymethylene dimethyl ethers
blended fuel
作者简介
杨皓（1984-），男（汉），河北，博士研究生。E-mail：yangha02525@163．com
通讯作者：李兴虎，教授。E-mail：lxh@buaa．edu．cn
