Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Numerical Analysis on Removal Efficiency of Water Droplets in a Curved Vane Mist Eliminator with Consideration of Evaporation and Condensation at Surface of Droplets

액적 표면에서 증발 및 응축을 고려한 곡면 형상 액적 제거장치의 제거 효율에 대한 수치 해석

  • Song, Dong Keun (Department of Eco-Machinery Systems, Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
  • 송동근 (한국기계연구원 환경에너지기계연구본부 환경시스템연구실)
  • Received : 2016.11.11
  • Accepted : 2016.12.25
  • Published : 2016.12.31
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Abstract

Removal of water contents in a gas is needed in industrial field of gas processing related on energy production/conversion, and environmental treatment. Inertial separators are economic devices for separating droplets from the gas stream. For accurate understanding of removal process in a curved vane mist eliminator, a numerical model including turbulent dispersion, evaporation and condensation of water vapor at surface of droplets is required. A two-stage curved vane mist eliminator has been modeled, and fluid flow of mixture of air and water vapor and droplet trajectories were solved simultaneously with taking into account two-way coupling. Removal efficiency of droplets with various inlet condition of relative humidities (RH, 40%, 90%, and 100%) were compared. As RH increased, the effect of evaporation decreased and inertial separation efficiencies of droplets obtained increased especially for droplets of diameter below 10 micrometers.

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References

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