Experimental investigation of activated carbon fibers/ethanol pairs for adsorption cooling system application

I. I. El-Sharkawy, K. Kuwahara, B. B. Saha, S. Koyama, K. C. Ng

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

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 ethanol onto Unitika activated carbon fiber (ACF) of types (A-20) and (A-15) have been measured and Dubinin-Radushkevich (D-R) equation is used to fit the experimental data. The pressure-temperature- concentration (P-T-X) diagrams of the pairs are also presented. It was found that ACF (A-20)/ethanol pair has considerably higher adsorption capacity than ACF (A-15)/ethanol pair. As combined heat and mass transfer plays the most important role on adsorption/desorption processes, the effect of the adsorbent bed apparent density on the adsorption rate is also studied. Experimental results show that the high apparent density improves the adsorption capacity per unit volume of the adsorber which may lead to the design a compact adsorption unit.

Original languageEnglish
Pages (from-to)859-865
Number of pages7
JournalApplied Thermal Engineering
Volume26
Issue number8-9
DOIs
Publication statusPublished - Jun 2006

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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