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Examination of the performance of a compression-driven adsorption cooling cycle.

Author(s) : SWARD B. K., LEVAN M. D.

Type of article: Article

Summary

A compression-driven adsorption cooling cycle (CDACC) is modelled and examined thermodynamically. Three different adsorbate/adsorbent pairs: CO2/NaX zeolite, CO2/activated carbon, and NH3/silica gel are studied. The influence of various model parameters on the predicted performance is examined. The model is then also used to simulate an analogous condensation/evaporation liquid cycle. The COP of the system is strongly influenced by both the heat capacity of the adsorbent and the shape of the isotherm. The production of cooling requires a compression system capable of producing pressure ratios of at least 15. Simulations indicate that the NH3/silica gel system provides a COP approximately 1/3 smaller than the condensation/evaporation system for ammonia. A working pair with a high adsorption capacity, low heat capacity and an "S-shaped" isotherm is desirable. Without it, the development of the CDACC into an economically viable system is not likely.

Details

  • Original title: Examination of the performance of a compression-driven adsorption cooling cycle.
  • Record ID : 2001-0186
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 19 - n. 1
  • Publication date: 1999/01

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