Accurate adsorption isotherms of R134a onto activated carbons for cooling and freezing applications

Bidyut Baran Saha, Ibrahim I. El-Sharkawy, Roger Thorpe, Robert E. Critoph

Research output: Contribution to journalArticle

27 Citations (Scopus)


The objective of this article is to improve the performance of thermally powered adsorption/cooling systems by selecting a new adsorbent/refrigerant pair. Adsorption equilibrium data of R134a onto granular activated carbon (AC) and Unitika activated carbon fiber (ACF) of type (A-20) have been measured experimentally using Rubotherm ISOSORP 2000 within evaporation temperatures range between -20 and 40°C and adsorption temperatures range from 30 to 80°C. Experimental data have been correlated using various popular isotherm models. The isosteric heat of adsorption of the assorted adsorbent/refrigerant pairs has also been extracted from the present experimental data.

Original languageEnglish
Pages (from-to)499-505
Number of pages7
JournalInternational Journal of Refrigeration
Issue number3
Publication statusPublished - May 1 2012


All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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