Experimental studies on heat and mass transfer in a packed bed of burnt clay impregnated with CaCl2 liquid desiccant and exploring the use of gas side resistance model

被引：10

作者：

Hiremath, C. R. ^{[1
]}

Kadoli, Ravikiran ^{[1
]}

机构：

[1] Natl Inst Technol Karnataka, Dept Mech Engn, Mangalore 575025, India

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 50卷 / 01期

关键词：

Burnt clay particles; Calcium chloride; Dehumidification; Gas side resistance model; COMPOSITE ADSORBENT; SILICA-GEL; SOLAR; SYSTEM; AIR;

D O I：

10.1016/j.applthermaleng.2012.08.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental and theoretical study on the transient adsorption characteristics of porous clay-CaCl2 bed is presented. In the experimental work, the spherical particles of burnt clay of 10 mm average diameter impregnated with liquid CaCl2 desiccant of 0.50 (wt.%) concentration are used as working desiccant in a vertical adsorption column. The bed properties are experimentally estimated. Measurements are made for transient values of exit air relative humidity and temperature. The influence of superficial velocity, inlet humidity ratio and bed height on the adsorption performance is investigated. In the theoretical study, governing equations for heat and mass transfer based on gas side resistance model is used. The numerical results obtained are compared with the results available in literature and the present experimental study. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1299 / 1310

页数：12

共 18 条

[11] MOISTURE TRANSPORT IN SILICA-GEL PACKED-BEDS .1. THEORETICAL-STUDY [J].

PESARAN, AA ;

MILLS, AF .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1987, 30 (06) :1037-1049

[12]

Pradip Majumdar, 1998, J SOL ENERGY, V629, P1

[13] Study of heat and mass transfer in a dehumidifying desiccant bed with macro-encapsulated phase change materials [J].

Rady, M. A. ;

Huzayyin, A. S. ;

Arquis, E. ;

Monneyron, P. ;

Lebot, C. ;

Palomo, E. .

RENEWABLE ENERGY, 2009, 34 (03) :718-726

[14] A new generation cooling device employing CaCl2-in-silica gel-water system [J].

Saha, Bidyut Baran ;

Chakraborty, Anutosh ;

Koyama, Shigeru ;

Aristov, Yu I. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2009, 52 (1-2) :516-524

[15] A solar-regenerated desiccant dehumidifier for the aeration of stored grain in the humid tropics [J].

Thoruwa, TFN ;

Grant, AD ;

Smith, JE ;

Johnstone, CM .

JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 1998, 71 (03) :257-262

[16] Novel, low cost CaCl2 based desiccants for solar crop drying applications [J].

Thoruwa, TFN ;

Johnstone, CM ;

Grant, AD ;

Smith, JE .

RENEWABLE ENERGY, 2000, 19 (04) :513-520

[17] Sorption and desorption characteristics of a packed bed of clay-CaCl2 desiccant particles [J].

Tretiak, C. S. ;

Ben Abdallah, N. .

SOLAR ENERGY, 2009, 83 (10) :1861-1870

[18]

YU QF, 2009, J CHEM ENG, V4, P612, DOI DOI 10.1002/APJ.301

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