Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Computational Study on the Energy Separation of the Vortex Tube for CO2 Reduction

CO2 흡수용 20Nm3/hr급 Vortex tube의 에너지 분리 현상에 관한 해석적 연구

  • Kim, Chang-Su (Div. of Automotive & Mechanical Engineering, Kongju National University) ;
  • Jung, Young-Chul (Div. of Automotive & Mechanical Engineering, Kongju National University) ;
  • Han, Keun-Hee (Korea Institute of Energy Research) ;
  • Park, Sung-Young (Div. of Automotive & Mechanical Engineering, Kongju National University)
  • 김창수 (공주대학교 기계자동차공학부) ;
  • 정영철 (공주대학교 기계자동차공학부) ;
  • 한근희 (한국에너지기술연구원) ;
  • 박성영 (공주대학교 기계자동차공학부)
  • Published : 2009.04.30
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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. In this study, computational approach has been performed to analyze the characteristics of the vortex tube. Energy separation characteristics of the vortex tube has been tested for various geometric design parameters. For the given conditions, it is found that as the tube is lengthened, hot end temperature is reduced but cold end temperature does not influenced much. As the orifice diameter decreases, cold end temperature decreases. Also, as hot gas fraction increases, hot end temperature decreases. The results from this study can be used for the basic design parameter of the $CO_2$ reduction device.

고압의 가스를 이용하여 고온 가스와 저온 가스를 분리하거나 입자상 물질의 분리에 사용 할 수 있는 장치인 볼텍스 튜브의 에너지 분리 특성을 적용하여 $CO_2$ 흡수를 위한 장치설계의 기본 설계 자료를 구축하기 위하여 전산유체 해석을 수행하였다. 설계를 위한 기초 자료를 확보하기 위하여, 볼텍스 튜브의 길이, 볼텍스 발생기의 오리피스 직경 및 고온 측과 저온 측의 유량비등이 볼텍스 튜브의 성능에 미치는 영향을 분석하였다. 튜브의 길이가 길어짐에 따라 고온 출구측의 온도는 감소하지만, 저온 출구측의 온도에 미치는 영향은 미미하였다. 볼텍스 발생기의 오리피스 직경이 축소됨에 따라 저온측 온도는 강하하나 고온측 온도의 변화는 미미하였다. 고온 유량비가 증가함에 따라 고온 출구 쪽의 온도가 강하하였다. 본 연구의 결과는 $CO_2$ 흡수 장치의 기본 설계 자료로 응용될 수 있을 것이다.

Keywords

References

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