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Activated carbon + HFC-134a based two-stage thermal compression/adsorption refrigeration using low grade thermal energy sources.

Author(s) : BANKER N. D., PRASAD M., DUTTA P., et al.

Type of article: Article

Summary

A thermodynamic analysis is presented for the two-stage thermal compression process for an adsorption refrigeration cycle with HFC-134a as the working fluid and activated carbon as the adsorbent. Three specimens of varying achievable packing densities were evaluated. The influence of evaporating, condensing/adsorption and desorption temperatures was assessed through three performance indicators, namely, the uptake efficiency, the coefficient of performance and the exergetic efficiency. Conditions under which a two-stage thermal compression process performs better than the single stage unit are identified. It is concluded that two stage thermal compression will be a viable proposition when the heat source temperature is low or when adsorption characteristics are weak or when adequate packing densities are difficult to realize. [Reprinted with permission from Elsevier. Copyright, 2008].

Details

  • Original title: Activated carbon + HFC-134a based two-stage thermal compression/adsorption refrigeration using low grade thermal energy sources.
  • Record ID : 2009-2033
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 29 - n. 11-12
  • Publication date: 2009/08
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2008.11.006

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