Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Numerical Study on the Performance Analysis of the Plume Abatement NWD Cooling Tower

백연 방지를 위한 NWD냉각탑의 성능해석에 관한 수치해석적 연구

  • Published : 2001.11.01
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Abstract

The performance and design analysis for a NWD cooling tower using a combined wet and dry type fill are numerically investigated and compared with the experimental results. The Stoecker's method is applied to the wet section and LMTD or NTU-Effectiveness method to the wet and dry sections. The efficiency ratio of the NWD cooling tower to a wet type crossflow cooling tower is 59.34%. The predicted result shows a good agreement with the experimental data within 1.4% error. Plume abatement is far better with a NWD cooling tower than a counterflow cooling tower. It costs less than a conventional wet/dry tower because the finned exchanger is eliminated. This method also leaves out complexity in structure and Intricacy in operation.

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References

  1. Principles of Chemical Engineering Walker, W. H.;Lewis, W. K.;McAams, W. H.
  2. Zeits v.70 Evaporative Cooling Merkel,F.
  3. ASME J. Heat Transfer v.83 A Performance Baker, D. R.;Shryock, H. A.
  4. Refrigerating Engineering v.64 An Analysis of the Crossflow Cooling Tower Zivi, S. M.;Brand, B. B.
  5. Refrigeration and Air-Conditioning(2nd ed.) Stoecker, W. F.;Jones, J. W.
  6. Cooling Tower Institute Annual Meeting Control of Fog from Cooling Towers Buss, J. R.
  7. Annual Meeting of the Cooling Tower Institute The Prevention of fog from Cooling Towers Campbell, J. C.
  8. Cooling Tower Institute Winter Meeting Meteorological Effects of Cooling Tower Plumes Hanna, S. R.
  9. Cooling Tower Institute Annual Conference The New Wet/Dry Cooling Tower Without Finned Tube Dry Section(NWD) Miura,T.;Gotoh,O.
  10. Fundamentals of Heat and Mass Transfer Incropera, F. P.;Dewitt, David P.