DOI QR코드

DOI QR Code

UV Dose Predictions for Ultra Violet Flowing Water Purification of Axial Reactor Type based on the location of the exit by CFD

CFD에 의한 Axial Reactor Type 자외선 유수살균장치의 출구 위치에 따른 UV Dose 예측

  • Published : 2012.08.15

Abstract

Interest in application of ultraviolet light technology for primary disinfection that used for the treatment of water for consumption and wastewater has increased significantly in recent years. Analysis of these systems has been carried out using Computational Fluid Dynamics (CFD) procedure. It offers advantages over other techniques in specific circumstances. CFD has emerged as a powerful tool to aid design of a UV reactor by providing the UV dose delivered by the proposed reactor design and allowing engineers to evaluate alternative designs in much less time and at a reasonable cost. In this study, five different configurations of the apparatus depending on the location of the exit are evaluated in terms of maximum dose, minimum dose, flow patterns, particle tracks and transient dose. The configuration 3 results have higher minimum UV dose value and uniform particle distribution of the UV dose on the outlet than other's.

Keywords

References

  1. 박대원, 길경석, 최용기, 최철영, 장지호, 천상규 (2010) "에너지 절감형 평형수 처리장치 개발에 관한 연구", 한국마린엔지니어링학회지 제34권 제6호, pp. 880-886.
  2. 이진영, 김영태 이테제 (2005) "국내하수처리장 자외선 소독조 운영실태 및 기술동향", 유체기계공업학회 유체기계저널 제 8권 제 6호, pp. 82-89.
  3. 정병호, 이강연 (2009) "자외선램프를 이용한 유수처리장치 설계 시뮬레이션", 전기설비학회논문지 제23권 제9호, pp. 17-23.
  4. ANSYS, (2009), "ANSYS ICEM CFD12 Mannual", United King-Dom.
  5. ANSYS, (2009), "ANSYS CFX 12 Mannual", United King-Dom.
  6. Bolton J .R., (2000) "Calculation of ultraviolet fluence rate distributions in an annular reactor : singificance of refraction and reflection", Wat. Res. Vol.34, No.13, pp. 3315-3324. https://doi.org/10.1016/S0043-1354(00)00087-7
  7. Chan Li ., Baoqing de. and Kim C. N. (2008) "Numerical simulation of flow field and organism concentration in a UV disinfection channel", 대한기계학회 2008년도 추계학술대대회, pp. 2816-2822.
  8. Craik S .A., Finch G.R., Bolton J.R. and Belosevic M. (2000) "Inactivation of Giardia muris cysts using medium-pressure ultraviolet radiation in filtered drinking water," Water Research Vol.34, No.18, pp. 317-326.
  9. Craik S .A., Weldon D. Finch G.R., Bolton J.R. and Belosevic M., (2001) "Inactivation of Cryptosordium parvum using medium-and low-pressure ultraviolet radiation in filtered drinking water," Water Research Vol.35, No.6, pp. 1387-1398. https://doi.org/10.1016/S0043-1354(00)00399-7
  10. Elyasi S . and Taghipour F. (2006) "Simulation of UV photoreactor for water disinfection in Eulerian framework", Chemical Engineering Science 61, pp 4741-4749. https://doi.org/10.1016/j.ces.2006.03.010
  11. Ernest R. and Blatchley III (1997) "Numerical modelling of UV intensity: Apllication to collimated-beam reactors and continuous-flow systems", Wat. Res. Vol. 31, No.9, pp. 2205-2218. https://doi.org/10.1016/S0043-1354(97)82238-5
  12. Gandhi V., Roberts P.J.W., Stoesser T., Wright H., and Kim J.H. (2011) " UV reactor flow visualization and mixing quantification using three-dimensional laser-induced fluorescence", Water Research 45, pp.3855-3862. https://doi.org/10.1016/j.watres.2011.04.041
  13. Lyn D. A. and Blatchley E.R. (2005) "Numerical computational fluid dynamics-based models of ultraviolet disinfection channels", Journal of Environmental Engineering, ASCE/June, pp.838-849.
  14. Unlutu rk S.K., Arastoopour H. and Koutchma T. (2004) "Modeling of UV dose distribution in a thin-film UV reactor for processing apple cider", Jounal of Food Engineering 65, pp. 125-136. https://doi.org/10.1016/j.jfoodeng.2004.01.005
  15. Wols B . A., Uijttewaal W.s.j., Hofman J.A.M.H., Rietveld L.C. and Dijk J.C. (2010) "The weaknesses of a k-e model compared to a large-eddy simulation for the prediction of UV dose distributions and disinfection", Chemical Engineering Journal 162, pp. 528-536. https://doi.org/10.1016/j.cej.2010.05.055

Cited by

  1. Unsteady Analysis of Hydraulic Behavior Characteristics in Water Treatment System Using CFD Simulation vol.27, pp.2, 2013, https://doi.org/10.11001/jksww.2013.27.2.215
  2. 자외선 소독기 성능 예측을 위한 CFD 해석 기법 연구 vol.17, pp.6, 2012, https://doi.org/10.5293/kfma.2014.17.6.044