Comparative evaluation of hybrid (dry/wet) cooling tower performance
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Publication Details
Author list: Asvapoositkul W., Kuansathan M.
Publisher: Elsevier
Publication year: 2014
Journal: Applied Thermal Engineering (1359-4311)
Volume number: 71
Issue number: 1
Start page: 83
End page: 93
Number of pages: 11
ISSN: 1359-4311
eISSN: 1873-5606
Languages: English-Great Britain (EN-GB)
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Abstract
The performance of hybrid cooling tower is analyzed using experiments and numerical simulations on a wide variety of working conditions. A computational model for predicting the behavior of dry, wet and hybrid cooling systems has been developed. The hybrid cooling tower model is expressed as a combination of a dry cooling model and a wet cooling model. The effectiveness-NTU equation and the Merkel equation, fundamental equation of heat transfer in dry and wet cooling towers, are presented and discussed. The cooling tower characteristics are a function of water-to-air ratio for each cooling mode. Comparison of the model tower test results with those of a computer simulation has demonstrated the validity of that simulation and its use as a design tool. Using the information presented in this paper, it will be possible to incorporate dry and wet cooling tower design, and simulation into a procedure to evaluate and optimize hybrid cooling tower performance. ฉ 2014 Elsevier Ltd. All rights reserved.
Keywords
Dry cooling tower, Hybrid cooling tower, Tower model
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