Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Numerical Simulation of Steam Jet Vacuum System in Multi-effect Desalination Plant

다중효용 담수 설비의 증기이젝터 진공장치에 관한 수치해석

  • Received : 2014.08.26
  • Accepted : 2015.03.13
  • Published : 2015.03.31
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Abstract

A steam jet vacuum system that will be implemented in a multi-effect desalination plant is numerically investigated. The objective of this study is to numerically investigate the performance characteristic of the steam jet vacuum system for the sea water distillation process. The effects of design parameter such as nozzle size and converging duct angle are discussed in order to get a better understanding of flow characteristics inside the steam ejector and subsequently pave the way for more optimum designs. The simulation results have been in good agreement with experimental data and have well reproduced the shock train phenomena of the throat region.

다중 효용 해수 담수화 설비에 적용되는 증기이젝터 진공장치에 대한 수치해석적 연구를 수행하였다. 본 연구의 목적은 해수 담수화 과정을 위한 증기이젝터 진공장치의 성능특성에 대한 수치적 검토를 수행하는 데에 있다. 증기이젝터 내부의 유동특성을 보다 잘 파악하고 최적의 설계를 도모하기 위하여, 노즐 사이즈 및 디퓨저 축소각의 변화와 같은 설계변수의 변화가 증기이젝터의 성능에 미치는 영향에 대해서도 논의하였다. 해석결과는 실험결과와 전반적으로 잘 일치함을 알 수 있으며, 목부에서의 shock train 현상도 잘 재현하고 있음을 알 수 있다.

Keywords

References

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