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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Prediction of Reentering Ratio of Individual Cooling Towers Scattered on a Building Roof

다수의 냉각탑이 설치된 옥상에서 냉각탑별 재유입률 예측

  • Lee, Tae-Gu (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Moon, Sun-Ae (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Yoo, Ho-Seon (Department of Mechanical Engineering, Soongsil University) ;
  • Lee, Jae-Heon (Department of Mechanical Engineering, Hanyang University)
  • 이태구 (한양대학교 대학원 기계공학과) ;
  • 문선애 (한양대학교 대학원 기계공학과) ;
  • 유호선 (숭실대학교 기계공학과) ;
  • 이재헌 (한양대학교 공과대학 기계공학부)
  • Published : 2006.11.10
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Abstract

In this paper, reentering ratio and cooling capacity of individual cooling towers arrayed on a building roof were studied by a numerical method. The number of 16 cooling towers were divided into 4 banks. It was considered the summer prevailing wind characteristics as west wind and south wind of 5 m/s. It was also considered the roofwall types as the curtainwall and the louverwall that had the outdoor air intake louver in the curtainwall. In this case, the louver was suggested as the solution that could prevent reentering phenomenon due to recirculation and interference of the discharge air. In the case of the curtainwall, the averaged reentering ratio are predicted 13.3% and 24.4% for the west and south wind of 5 m/s, respectively. In the case of the louverwall, the averaged reentering ratio are predicted 2.5% and 9.7% for the west and south wind of 5 m/s, respectively. Therefore, the louverwall is a appropriate solution for reducing the reentering phenomenon.

Keywords

References

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