摘要
基于AVL⁃fire软件,以TBD234V6型柴油机为原机,在掺水率9%和EGR率0.1(最优组合)下,选定研究的低中高负荷的代表工况点分别为25%负荷、50%负荷、75%负荷,调节喷油提前角,研究柴油机性能.研究表明:低负荷时,喷油提前角为25°CA时,最高燃烧压力较高,燃油消耗率最低,排气中NO和SOOT含量满足排放条件,此时,喷油提前角不用调整;中负荷时,最佳喷油提前角为26°CA;高负荷时,最佳喷油提前角为27°CA.
Based on AVL⁃fire software,taking TBD234V6 diesel engine as the original engine,under the water rate of 9%and EGR rate of 0.1(the optimal combination),the representative working conditions of low,medium and high load were selected as 25%load,50%load and 75%load respectively,and the injection advance Angle was adjusted to study the performance of the diesel engine.The research shows that when the injection advance Angle is 25°CA,the highest combustion pressure is higher and the fuel consumption rate is the lowest.Meanwhile,NO and SOOT contents in exhaust can satisfy the emission condition.At this time,the injection advance Angle need not be adjusted.At medium load,the optimal injection advance Angle is 26°CA.At high load,the optimal injection advance Angle is 27°CA.
作者
林斯潭
LIN Si-tan(Department of Safety Supervision,COSCO Shipping Bulk Transportation Co.,LTD.,Guangzhou Guangdong 511400,China)
出处
《广州航海学院学报》
2023年第1期49-53,共5页
Journal of Guangzhou Maritime University
关键词
柴油机
喷油提前角
掺水乳化油
EGR
性能影响
Diesel engine
Injection advance Angle
Water emulsified oil
EGR
Performance impact
