Experimental investigation on activated carbon-ethanol pair for solar powered adsorption cooling applications

被引：118

作者：

El-Sharkawy, I. I. ^{[1
,2
]}

Saha, B. B. ^{[1
]}

Koyama, S. ^{[1
]}

He, J. ^{[3
]}

Ng, K. C. ^{[3
]}

Yap, C. ^{[3
]}

机构：

[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga Koen 6-1, Kasuga, Fukuoka 8168580, Japan

[2] Mansoura Univ, Fac Engn, Dept Power Mech Engn, Mansoura, Egypt

[3] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2008年 / 31卷 / 08期

关键词：

Cooling; Adsorption system; Activated carbon; Ethanol; Heating; Solar energy; Experiment; Modelling; Simulation; Performance;

D O I：

10.1016/j.ijrefrig.2008.03.012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Adsorption equilibrium uptake of ethanol onto a highly porous activated carbon based adsorbent, namely Maxsorb III, has been experimentally investigated using a thermogravimetric analyzer (TGA) unit over adsorption temperatures ranging from 20 to 60 degrees C. The Dubinin-Astakhov (D-A) equation has been used to correlate the experimental data. Isosteric heat of adsorption is also estimated by using the Clausius-Clapeyron equation. Employing a thermodynamically equilibrium model, the performance of the ideal adsorption cooling cycle has also been studied and compared to that of activated carbon fiber (ACF)-ethanol pair. Experimental results show that Maxsorb III can adsorb up to 1.2 kg of ethanol per kilogram of adsorbent. Theoretical calculations show that, the Maxsorb III-ethanol adsorption cycle can achieve a specific cooling effect of about 420 kJ kg(-1) at an evaporator temperature of 7 degrees C along with a heat source of temperature 80 degrees C and thus the pair is recommended for solar cooling applications. (C) 2008 Elsevier Ltd and IIR. All rights reserved.

引用

页码：1407 / 1413

页数：7

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