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Research on the Effect of Cross-wind to Temperature Difference and Efficiency of Natural Draft Counter flow Wet Cooling Tower

  • Ming Gao
  • F. Z. H. Sun
  • Y. T. Shi
  • Kai Wang
  • Y. B. Zhao

Abstract

The experiment in terms of heat transfer performance of natural draft counter-flow wet cooling Tower (NDCWCT) is done for cases with cross-wind conditions. The variation of circulating-water temperature difference (Δt) and cooling coefficient of efficiency (η) with cross-wind velocity, circulating water inlet temperature and flow rate, are shown under cross-wind conditions, compared with cases without wind. According to experimental results, it is found that Δtand η are influenced by the cross-wind, Δt and η can decrease mostly by 9.2% and 9.6%, respectively. When the critical Fr l number is less than 0.153, Δtand η decrease with increasing cross-wind velocity, however, when it is greater than 0.153, Δt and η increase with increasing cross-wind velocity.

Keywords

Cross wind Cooling tower Coefficient of efficiency Temperature difference Correlative equations 

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Copyright information

© Zhejiang University Press, Hangzhou and Springer-Verlag GmbH Berlin Heidelberg 2007

Authors and Affiliations

  • Ming Gao
    • 1
  • F. Z. H. Sun
    • 1
  • Y. T. Shi
  • Kai Wang
  • Y. B. Zhao
  1. 1.School of Energy and Power EngineeringShandong UniversityJinanChina

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