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Title: Experimental investigation of activated carbon fibers/ethanol pairs for adsorption cooling system application
Authors: El-Sharkawy, I.I.
Kuwahara, K.
Saha, B.B.
Koyama, S.
Ng, K.C. 
Keywords: Activated carbon fiber
Adsorption characteristics
Cooling system
Issue Date: Jun-2006
Citation: El-Sharkawy, I.I., Kuwahara, K., Saha, B.B., Koyama, S., Ng, K.C. (2006-06). Experimental investigation of activated carbon fibers/ethanol pairs for adsorption cooling system application. Applied Thermal Engineering 26 (8-9) : 859-865. ScholarBank@NUS Repository.
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. © 2005 Elsevier Ltd. All rights reserved.
Source Title: Applied Thermal Engineering
ISSN: 13594311
DOI: 10.1016/j.applthermaleng.2005.10.010
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