A Study on Heat Exchange Efficiency of EGR Cooler for Diesel Engine to Meet Euro-5 Emission Regulation

Euro-5 대응 디젤엔진용 EGR 쿨러의 열교환 효율 연구

  • Lee, Joon (Department of Chemical Engineering, Hoseo University) ;
  • Han, Chang-Suk (Department of Defence Science & Technology, Hoseo University)
  • 이준 (호서대학교 화학공학과) ;
  • 한창석 (호서대학교 국방과학기술학과)
  • Published : 2007.05.01


Recently, diesel engine has been frequently applied to RV, SUV and light duty truck due to the good fuel economy and high thermal efficiency. $NO_x$ and PM, environmental pollution materials are basically produced in diesel combustion process. The most important target in diesel engine research is the development of system to reduce the emissions of $NO_x$ and PM. Cooled EGR system is an effective method for the reduction of $NO_x$ emission and PM emission from a diesel engine and EGR cooler is the key component of the system. This study investigates the EGR cooler of oval gas tubes compared with the EGR cooler of shell & tubes to verify the heat exchange efficiency of cooler by means of engine dynamometer tests, rig performance tests and numerical analyses.


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