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

    • Experimental Study on Combustion and Emissions of A Gasoline Compression Ignition Engine
    DOI：10.13949/j.cnki.nrjgc.2022.05.008
    Key Words:gasoline compression ignition  thermal efficiency  after-treatment  emission
    Author NameAffiliationE-mail
    JIA Huixing* School of Mechanical and Automotive Engineering， Chuzhou Polytechnical， Chuzhou 239000， China jiahuixing_0@163.com 
    ZHAO Niu School of Mechanical Engineering， Wanjiang University of Technology， Maanshan 243031， China  
    YANG Cheng School of Mechanical and Automotive Engineering， Chuzhou Polytechnical， Chuzhou 239000， China  
    CHEN Weiguo Engine Engineering Research Institute， Chery Automobile Co.， Ltd.， Wuhu 241006， China  
    PAN Jinyuan Engine Engineering Research Institute， Chery Automobile Co.， Ltd.， Wuhu 241006， China  
    Hits: 1896
    Download times: 997
    Abstract:Based on a 2.0 L diesel engine， the combustion and original pollutant emissions of gasoline compression ignition（GCI） and diesel compression ignition（DCI） at 1 500 r/min and break mean effective pressure（BMEP） of 0.4 MPa~0.9 MPa were compared. Besides， based on six worldwide harmonized light vehicle test cycle（WLTC） cluster operating points， the pollutant after-treatment scheme of three-way catalyst（TWC）+lean NOx trap（LNT）/passive selective catalytic reduction（PSCR） was studied. Results show that the brake thermal efficiency of GCI is lower than that of DCI at low load due to excessive fuel–air mixing and low cylinder temperature. Compared with DCI， with the increase of load， the thermal efficiency of GCI was significantly improved. The maximum brake thermal efficiency was increased to 43.0%. At different loads， compared with DCI， the NOx emission of GCI was slightly lower， and the filter smoke number（FSN） was significantly improved. The CO emission and HC emission of GCI increased significantly at low load compared with DCI. And with the increase of load， the difference between GCI and DCI of CO emission and HC emission decreased. Based on tested six WLTC cluster operating points at a certain car， the after-treatment results of NOx， HC and CO pollutant emissions were evaluated. The after-treatment scheme of GCI engine with TWC+LNT/PSCR has the potential in meeting the national six b emission regulations.
    View Full Text  View/Add Comment  Download reader