Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
Online ISSN : 2185-789X
Print ISSN : 1344-4905
ISSN-L : 1344-4905
Paper
Prediction of Air and Water Film Coefficients in Cooling Towers from Penetration Theory
Yoshimu YAZAKIHideaki YOSHIOKA
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1995 Volume 12 Issue 2 Pages 211-217

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Abstract
In the experimental analysis of cooling towers, it is not necessarily easy to obtain the values of air and water phase film volumetric coefficients, because the experimental conditions are limited to which the Mickley's graphical method is applicable.
The purpose of this study is to predict the individual coefficients using more practical method based on the penetration theory for water film. The tower used in this study is of a commercial induced draft counterflow type. Water-cooling experiments were made with constantly designed air and water flow rates and with varied water temperatures. Then, we attempted to predict the individual coefficients from these over-all results by means of the reported procedure.
Finally, applying our method to the similar experimental date of other workers, we obtained nearly equal results compared with the Mickley's method.
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© 1995 Japan Society of Refrigerating and Air Conditioning Engineers
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