• Home
  • About CICEE
  • Editorial Board
  • Publication Ethics
  • 中文

    • Effects of Mixture Formation in Pre-Combustion Chamber on Ignition and Combustion of a Natural Gas Engine
    DOI：10.13949/j.cnki.nrjgc.2022.04.004
    Key Words:natural-gas engine  pre-combustion chamber ignition  mixture formation  comprehensive evaluation method using multiple indicators
    Author NameAffiliationE-mail
    CAO Yang School of Mechanical Engineering， Shanghai Jiao Tong University， Shanghai 200240， China yangcao@sjtu.edu.cn 
    ZHU Qitian School of Mechanical Engineering， Shanghai Jiao Tong University， Shanghai 200240， China  
    ZHOU Yifan School of Mechanical Engineering， Shanghai Jiao Tong University， Shanghai 200240， China  
    WEI Zhenhong School of Mechanical Engineering， Shanghai Jiao Tong University， Shanghai 200240， China  
    LIU Rui Shanghai Marine Diesel Engine Research Institute， Shanghai 201108， China  
    ZHANG Yuyin* School of Mechanical Engineering， Shanghai Jiao Tong University， Shanghai 200240， China yuyinzhang@sjtu.edu.cn 
    Hits: 1772
    Download times: 1267
    Abstract:The mixture formation and turbulent jet ignition characteristics in the pre-combustion chamber （PCC） of a marine natural gas engine was studied. Based on the experimentally calibrated spray model， the simulation of the diesel atomization–mixing–ignition process in the PCC was carried out， and the influence law of the injection parameters and the pre-chamber structure parameters on the ignition characteristics was obtained. Results show that the injection pressure affects the formation of the mixture in the PPC from aspects of both the wet wall and atomization. The use of two-stage injection can reduce the fuel amount of wet wall in the PPC. When the mixture just starts to catch fire， increasing the equivalence ratio gradient of the mixture and shortening the distance between the initial ignition point and the jet hole can reduce fuel loss， increase the duration of heat release and improve the ignition ability.
    View Full Text  View/Add Comment  Download reader