Journal of Engineering Physics and Thermophysics

, Volume 86, Issue 6, pp 1490–1499 | Cite as

Heat and Mass Transfer in the Over-Shower Zone of a Cooling Tower with Flow Rotation

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The influence of flow rotation in the over-shower zone of a natural draft wet cooling tower (NDCT) on heat and mass transfer in this zone is investigated numerically. The 3D geometry of an actual NDCT and three models of the induced rotation velocity fields are utilized for calculations. Two phases (liquid and gaseous) and three components are taken into consideration. The interphase heat exchange, heat transfer to the walls, condensation–evaporation intensity field, and other parameters are investigated as functions of the induced rotation intensity (the inclination of the velocity vector at the periphery). It is shown that the induced flow rotation intensifies the heat and mass transfer in the over-shower zone of an NDCT. Flow rotation leads to specific redistribution of evaporation–condensation areas in an NDCT and stimulates water condensation near its walls.

Keywords

cooling tower over-shower zone heat and mass transfer numerical simulation 
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Islamic Azad UniversityJasbIran
  2. 2.A. V. Luikov Heat and Mass Transfer InstituteNational Academy of Sciences of BelarusMinskBelarus

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