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http://dx.doi.org/10.5762/KAIS.2010.11.1.055

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

Kim, Chang-Su (Mechanical Engineering Dept., Graduate School, Kongju National University)
Park, Sung-Young (Div. of Automotive & Mechanical Engineering, Kongju National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.11, no.1, 2010 , pp. 55-60 More about this Journal
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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