ADSORPTION CHARACTERISTICS AND HEAT OF ADSORPTION MEASUREMENTS OF R-134a ON GRANULAR ACTIVATED CARBON

被引：5
作者：
Attalla, M. [1 ]
Sadek, S. [1 ]
El-Fadeel, W. Abd [2 ]
机构：
[1] South Valley Univ, Fac Engn, Mech Power Dept, Qena 83251, Egypt
[2] Aswan Univ, Fac Energy Engn, Mech Power Stn Dept, Aswan, Egypt
来源：
INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION | 2014年 / 22卷 / 03期
关键词：
Adsorption; activated carbon; R-134a; isosteric heat;
D O I：
10.1142/S201013251450014X
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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 degrees C 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 AC 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/kgcarbon at 20 degrees C after 1200 s. The experimental results also shows that the increase of heat transfer area improves the adsorption capacity per kg of adsorber, which lead to the design of a finned tubes heat exchanger adsorption unit.
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页数：9
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