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Experimental Study on the Energy Separation of the Vortex Tube for EGR Cooler

EGR Cooler 대체용 Vortex Tube의 에너지 분리 현상에 관한 실험적 연구

  • Kim, Chang-Su (Mechanical Engineering Dept., Graduate School, Kongju National University) ;
  • Park, Sung-Young (Div. of Automotive & Mechanical Engineering, Kongju National University)
  • 김창수 (공주대학교 일반대학원 기계공학과) ;
  • 박성영 (공주대학교 기계자동차공학부)
  • Published : 2010.01.31

Abstract

Vortex tube is the device that can separate small particles from the compressed gas, as well as compressed gas into hot and cold flow. Due to energy separation ability, a vortex tube can substitute for an EGR cooler of the automotive engine. In this study, experimental approach has been performed to analyze the energy separation characteristics of the vortex tube. Energy separation characteristics of the vortex tube has been tested for supply pressure, cold-out pressure, and hot-out pressure. As increasing supply pressure, energy separation effect increased. Maximum temperature exists about 0.85 of the cold-out-flow-ratio, and minimum exists about 0.35. Hot-out temperature of the vortex tube is affected by the hot-out and cold-out pressure. However, for the given conditions, cold-out temperature is independent of exit pressure change. The results from this study can be used for the basic design parameter of the EGR cooler substitute of an automotive engine.

Keywords

Vortex tube;EGR cooler;Throttle valve;Energy separation

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