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has been cited by the following article:

• TITLE: Experimental Investigation of Granular Activated Carbon/R-134a Pair for Adsorption Cooling System Applications

  AUTHORS: M. Attalla, S. Sadek

  KEYWORDS: Adsorption; Activated Carbon; R-134a; Isosteric Heat

  JOURNAL NAME: Journal of Power and Energy Engineering, Vol.2 No.2, February 15, 2014

  ABSTRACT: The objective of this study is to investigate the adsorption characteristics of granular activated carbon GAC/R-134a pair in the temperature range of 20℃- 60℃and pressure up to 10 bars. The Dubinin-Astakhov adsorption equilibrium model is fit to experimental data with acceptable error limit. The pressure-temperature-concentration (P-T-X) diagram of the pair is also presented. The isosteric heat of adsorption of R-134a on activated carbon has been calculated using the Clausius-Clapeyron equation as a function of adsorption capacity. The maximum adsorption capacity was found to be 1.92 kgR134a/kg carbon at 20℃after 1200 s. The experimental results also show that the increase of heat transfer area improves the adsorption capacity per kg of adsorber, which leads to the design of a finned tubes heat exchanger adsorption unit.