沈颖刚，吕誉，陈春林，陈贵升，彭益源.非对称孔结构载体对DPF及柴油机性能的影响研究[J].内燃机工程,2018,39(6):31-38.
非对称孔结构载体对DPF及柴油机性能的影响研究
Influence of Asymmetric Cell Carrier on DPF and Diesel Engine Performance
DOI：10.13949/j.cnki.nrjgc.2018.06.004
关键词:柴油机  非对称孔道结构  颗粒捕集器  压降  性能
Key Words:diesel engine  asymmetric cell technology  diesel particle filter  pressure drop  performance
基金项目:国家自然科学基金资助项目(51866004)；云南省教育厅科学研究基金资助项目(2018Y019)
作者单位
沈颖刚，吕誉，陈春林，陈贵升，彭益源 1.昆明理工大学 云南省内燃机重点实验室，昆明 650500；2云内动力股份有限公司，昆明 650501 
摘要点击次数: 3087
全文下载次数: 1619
摘要:运用GT Power建立柴油机整机耦合柴油机颗粒捕集器（diesel particle filter， DPF）的模型，研究非对称孔道结构DPF的压降特性及其对柴油机整机性能的影响。研究结果表明：随着进/出口孔道比例增加，碳烟容量增大，DPF压降降低，但过度增大进/出口孔道比例会使出口孔径过小而造成压降升高；柴油机加装洁净DPF时，柴油机各项性能指标随进/出口比例增加而降低，但随着DPF碳烟和灰分沉积量的增加，柴油机各项性能指标随进/出口比例增加均有所改善。DPF进/出口孔道比例为1.3时，柴油机综合性能最佳。
Abstract:The model of a diesel engine coupled diesel particulate filter(DPF) built by GT-Power software was used to study the pressure drop characteristics of the DPF asymmetric cell carrier and its influence on diesel engine performance. Results show that as the proportion of inlet and outlet channels of the DPF increases, the soot capacity increases, and the DPF pressure drop decreases. However, excessive increase in the proportion of inlet and outlet channels will make the outlet pore diameter too small, resulting in an increase in pressure drop. When the diesel engine is equipped with a clean DPF, the performance indexes of the diesel engine decrease with increase of the proportion of inlet and outlet channels. However, with the increase of the soot and ash deposition in the DPF, the performance indexes of the diesel engine will improve with the increase of the proportion of inlet and outlet channels. When the proportion of inlet and outlet channels is 1.3, the overall performance of the diesel engine is optional.
查看全文  HTML   查看/发表评论