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Performance enhancement of a desiccant evaporative cooling system using direct/indirect evaporative cooler.
Author(s) : ELGENDY E., MOSTAFA A., FATOUH M.
Type of article: Article, IJR article
Summary
In this paper, three novel desiccant evaporative cooling system configurations are proposed, simulated and compared with the conventional system under a wide range of ambient air temperature (30: 40 °C) and humidity ratio (0.01: 0.02 kgv kga-1). In configuration-I, a direct/indirect evaporative cooling is inserted before the rotating heat exchanger. However, it is inserted after the rotating heat exchanger for system configuration-II. In configuration-III, an extra direct/indirect evaporative cooling is added in an opposite manner. Validation results confirm that, simulation and experimental results are in a good agreement with average errors of 2.23 and 3.87% for ambient air temperature and humidity ratio, respectively. Energetic analysis revealed that configuration-I has the highest cooling capacity while configuration-III has the highest thermal COP and air handling COP. Exergetic efficiency of config-III is higher than the conventional system with 54% as average value over the range of ambient air humidity.
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Pages: 77-87
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Details
- Original title: Performance enhancement of a desiccant evaporative cooling system using direct/indirect evaporative cooler.
- Record ID : 30013502
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 51
- Publication date: 2015/03
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