Performance Development of Coolant Core for Range Extender Engine Using CFD Simulation

전산유체해석을 통한 RE엔진 냉각수 코어의 성능 개발

  • Kim, Chang-Su (Mechanical Engineering Dept., Graduate School, Kongju National University) ;
  • Park, Sung-Young (Institute of Green-Car Technology, Kongju National University)
  • 김창수 (공주대학교 일반대학원 기계공학과) ;
  • 박성영 (공주대학교 그린카기술연구소)
  • Received : 2013.02.22
  • Accepted : 2013.05.09
  • Published : 2013.05.31


A Coolant core for Range Extender engine has been developed using CFD technique. Coolant by-pass has been added to the improved model to reduce temperature near and between exhaust valve. Due to the increased coolant flow-rate both around the second cylinder block and between exhaust valves, improved model shows no significant stagnant flow compared with base model. Finally, the improved model shows improved heat transfer coefficients near exhaust valves, and 5% reduced pressure-drop through the coolant core. Reduced pressure-drop may increase the fuel efficiency by reducing the load of a coolant pump.


Range Extender;Coolant core;Exhaust port;Heat transfer;Pressure-drop


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