The second-law analysis of a recirculation cycle desiccant cooling system: Cosorption of water vapor and carbon dioxide

The second law, of thermodynamics is applied to a desiccant cooling system operating in the recirculation mode. In this study, the adsorbent is 13X molecular sieve, and the process air stream is assumed to contain only dry air, water vapor, and carbon dioxide. The second law efficiencies of a desicc...

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Bibliographic Details
Published in:Atmospheric environment (1994) 1996, Vol.30 (9), p.1429-1435
Main Authors: Shen, C.M., Worek, W.M.
Format: Article
Language:English
Subjects:
Adsorbents
Air conditioning. Ventilation
Air treatment
Applied sciences
Carbon dioxide
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Heating, air conditioning and ventilation
Q1
Sorption
Temperature
Thermodynamics
Vapors
Water
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Summary:The second law, of thermodynamics is applied to a desiccant cooling system operating in the recirculation mode. In this study, the adsorbent is 13X molecular sieve, and the process air stream is assumed to contain only dry air, water vapor, and carbon dioxide. The second law efficiencies of a desiccant wheel are documented in terms of overall number of transfer units and the regeneration temperature. The results show that based on the first law and second law of thermodynamics, a solid desiccant adsorber using 13X molecular sieve can be optimally designed.
ISSN:1352-2310
1873-2844
DOI:10.1016/1352-2310(95)00437-8