Performance enhancement of adsorption beds with silica-gel particles packed in aluminum foams

被引：35
作者：
Mohammed, Ramy H. [1 ,2 ]
Mesalhy, Osama [1 ,2 ]
Elsayed, Mohamed L. [1 ,2 ]
Chow, Louis C. [1 ]
机构：
[1] Univ Cent Florida, Dept Mech & Aerosp Engn, Orlando, FL 32816 USA
[2] Zagazig Univ, Dept Mech Power Engn, Zagazig 44159, Egypt
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2019年 / 104卷
基金：
美国国家科学基金会;
关键词：
Open-cell aluminum foam; Adsorption packed bed; Silica gel/water; Bed thermal conductivity; Cooling capacity; METAL-ORGANIC FRAMEWORKS; HEAT-PUMP APPLICATIONS; WATER-ADSORPTION; COOLING SYSTEM; MASS-TRANSFER; ADSORBENT; DRIVEN; GEL/WATER; CHILLER; COATINGS;
D O I：
10.1016/j.ijrefrig.2019.03.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Effective thermal conductivity of a silica-gel/water adsorption packed bed is significantly enhanced by placing silica-gel particles in a high-porosity aluminum foam. The enhancement leads to several folds increase in the specific cooling power (SCP), cooling capacity per unit volume (CPv) and coefficient of performance (COP) of an adsorption cooling (AD) chiller. The thermal response and adsorption kinetics of various silica-gel/aluminum foam beds under typical operating conditions are investigated experimentally and numerically. Effect of pores per inch (PPI) of the foam, silica-gel particle size, bed height and adsorption isotherm of different types of silica-gel on the bed performance are investigated. Based on the results, aluminum foam with 20 PPI is recommended for adsorption cooling applications due to its high surface area and small cell size. 20 PPI aluminum foam can deliver a SCP of 827 W/kg, a CPv of 517 W/m(3) and a COP of 0.75. (C) 2019 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：201 / 212
页数：12
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