Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Characteristics of the Liquid-gas Ejector

Liguid-gas Ejector의 구동성능 특성에 관한 연구

  • Park, Gi-Tae (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Jin, Zhen-Hua (Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Chung, Han-Shik (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Jeong, Hyo-Min (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
  • 박기태 (경상대학원 정밀기계공학과) ;
  • 김진화 (경상대학원 정밀기계공학과) ;
  • 정한식 (경상대학교 기계항공공학부) ;
  • 정효민 (경상대학교 기계항공공학부)
  • Published : 2008.06.25
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Abstract

The aim of this paper is that studies on the characteristics of the liquid-gas ejector. Could get data about various model using numerical analysis. Compare and analyze result that get by an experiment and numerical analysis. And studied Characteristics of the ejector. In this paper, Numerical analysis model is gotten divided according to each Throat ratio as three types. Each throat ratio is 0, 4 and 7.5. According to the result that analyze basic model, pressure became lower causing the volume flow rate increase. In CFD studies, Fixed volume flow rate by these result and analyzed ejector performance. As a result, there was no change of pressure to Throat's Enterance, and pressure became low while pass the throat. Since, pressure recovered while passing diffuser. The outer flow velocity did not change greatly to change of volume flow rate. This research expects that is utilized to data for performance elevation hereafter.

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