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The effect of longitudinal heat conduction in crossflow indirect evaporative air coolers.

Author(s) : MADHAWA HETTIARACHCHI H. D., GOLUBOVIC M., WOREK W. M.

Type of article: Article

Summary

The effect of the longitudinal heat conduction in the exchanger wall of a compact-plate crossflow indirect evaporative cooler is investigated. A NTU method is used to study the heat and mass transfer characteristics. A block iterative numerical method is used to solve the coupled conservation equations for the primary fluid, the secondary fluid and the liquid film. The model was validated using previously published data. The exchanger performance deterioration due to the conduction effect has been determined for various design and operating conditions. The results indicate that the thermal performance deterioration of the evaporative coolers may become significant for some typical operating conditions and could be as high as 10%, while it lies less than 5% for most conservative conditions. [Reprinted with permission from Elsevier. Copyright, 2007].

Details

  • Original title: The effect of longitudinal heat conduction in crossflow indirect evaporative air coolers.
  • Record ID : 2008-0548
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 27 - n. 11-12
  • Publication date: 2007/08

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