title: Experimental study on filtration and continuous regeneration of a particulate filter system for heavy-duty diesel engines.
abstract: This study investigated the filtration and continuous regeneration of a particulate filter system on an engine test bench, consisting of a diesel oxidation catalyst (DOC) and a catalyzed diesel particulate filter (CDPF). Both the DOC and the CDPF led to a high conversion of NO to NO2 for continuous regeneration. The filtration efficiency on solid particle number (SPN) was close to 100%. The post-CDPF particles were mainly in accumulation mode. The downstream SPN was sensitively influenced by the variation of the soot loading. This phenomenon provides a method for determining the balance point temperature by measuring the trend of SPN concentration.
authors.affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China. Electronic address: xiangfantt@163.com.
authors.forename: Tao
authors.initials: T
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China.
authors.forename: Dongxiao
authors.initials: D
authors.lastname: Cao
authors.affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China. Electronic address: sjshuai@tsinghua.edu.cn.
authors.forename: Shijin
authors.initials: S
authors.lastname: Shuai
authors.affiliation: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China.
authors.forename: Yanguang
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D005374:Filtration / Q000295:instrumentation; D052638:Particulate Matter / Q000302:isolation & purification*; D001335:Vehicle Emissions / Q000517:prevention & control*
chemical_list: D052638:Particulate Matter; D001335:Vehicle Emissions
keywords: Balance point temperature; Catalyzed diesel particulate filter; Diesel oxidation catalyst; Filtration; Regeneration