Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Simulation of a natural circulation evaporative concentrator

자연순환형 소형 진공증발농축장치 시뮬레이션

  • Park, Ji-Hoon (Department of Mechanical Engineering, University of Incheon) ;
  • Kim, Nae-Hyun (Department of Mechanical Engineering, University of Incheon) ;
  • Choi, Young-Min (Department of Mechanical Engineering, University of Incheon) ;
  • Oh, Wang-Kyu (Department of Mechanical Engineering, University of Incheon)
  • Published : 2009.06.25
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Abstract

In this study, an analysis was performed on an evaporative steam generator (concentrator), where natural circulation convective boiling occurs on tube-side by condensing hot steam on shell-side. Existing correlations on two-phase pressure drop, boiling or condensation heat transfer were used for the analysis. The effect of number of tubes, tube length, etc. on thermal performance was investigated. Simulation results reveal that steam generation rate increases almost proportionally to the tube length, or number of tubes. It is also shown that water circulation rate decreases as tube length increases.

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