The Effectiveness-NTU Approach for Evaluation of an Air-Cooled Heat Exchanger
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Author list: Asvapoositkul W., Kuansathan M.
Publisher: Taylor and Francis Group
Publication year: 2016
Journal: Heat Transfer Engineering (0145-7632)
Volume number: 37
Issue number: 2
Start page: 140
End page: 149
Number of pages: 10
ISSN: 0145-7632
eISSN: 1521-0537
Languages: English-Great Britain (EN-GB)
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Abstract
A newly developed empirical model based on the effectiveness-NTU approach was developed for a dry-cooling simulation to evaluate the thermal performance of air-cooled heat exchangers. The value of this model is that air-cooled heat exchanger performance can be studied in a variety of working conditions. This information is useful in dry-cooling system evaluation. The purpose of this study was to present a calculation that would be accurate and simple to implement, and could be applied to evaluate and optimize the thermal performance for hybrid (wet/dry) cooling towers, in which dry- and wet-cooling towers are designed to work in combination. This study was only limited to a dry-cooling section. The tests showed that the predictions of the model were accurate and efficient. Copyright ฉ 2016 Taylor & Francis Group, LLC.
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