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Energy and exergy analyses of an experimental open-cycle desiccant cooling system.

Author(s) : KANOGLU M., CARPINLIOGLU M. Ö., YILDIRIM M.

Type of article: Article

Summary

A procedure was developed for energy and exergy analyses of open-cycle desiccant cooling systems and was applied to an experimental unit operating in the ventilation mode with natural zeolite as the desiccant. The same procedure and formulations may easily be applied to units operating in the recirculation mode. Energy-based performance parameters such as the coefficient of performance (COP) of the unit and the effectiveness' of system components are presented. Exergy destruction and exergy efficiency relations for the system and its components as well as the reversible COP of the system are derived. The energy and exergy formulations are applied to the experimental unit using the data collected during typical operation of the unit. Analysis shows that exergy analysis can provide useful information with respect to the theoretical upper limit of the system performance, which cannot be obtained from energy analysis alone. Analysis makes it possible to identify and quantify the sites with the losses of exergy, and therefore show the direction for the minimization of exergy losses to approach the reversible COP.

Details

  • Original title: Energy and exergy analyses of an experimental open-cycle desiccant cooling system.
  • Record ID : 2004-2399
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 24 - n. 5-6
  • Publication date: 2004/04

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