Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on Enhancement of UV Disinfection System Performance by the Vortex Generator

와동 발생기를 이용한 자외선 살균 시스템 성능 향상에 관한 연구

  • Kim, Bong-Hwan (Department of Automotive Engineering, Jinju National University) ;
  • Ahn, Kook-Chan (Department of Automotive Engineering, Jinju National University) ;
  • Kim, Dong-Jin (Department of Computer Aided Design, Halla University)
  • 김봉환 (진주산업대학교 자동차공학과) ;
  • 안국찬 (진주산업대학교 자동차공학과) ;
  • 김동진 (한라대학교 컴퓨터응용설계학과)
  • Published : 2007.02.28
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Abstract

The effectiveness of a UV(ultra violet) disinfection system depends on the characteristics of the waste water, flow conditions, the intensity of UV radiation, the amount of time the microorganisms are exposed to the radiation, and the reactor configuration. The wast water flow conditions are important factors in the design of UV disinfection system from the point of enhancement view of UV disinfection. The turbulent energy intensity in the wake by the vortex shedding are effective for UV radiation. Therewith the effectiveness of vortex generator is considered as a enhancement of UV disinfection. The experimental results presented give important evidences and explain that it is possible to predict UV disinfection performance based on flow experiments. An experimental investigation of two types of the vortex generator is presented. The qualitative and quantitative evaluations of the wake are made by flow visualization using smoke wire method and the measurement of vortex frequencies in the wind tunnel. From the experiment, following results were obtained that the delta wing type vortex generator is more effective than circular type because of the higher vortex frequencies and the smaller drag.

Keywords

References

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