Experimental and theoretical study on dehumidification potential of clay-additives based CaCl2 composite desiccants

被引：16

作者：

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

Kadoli, Ravikiran ^{[1
]}

Katti, V. V. ^{[2
]}

机构：

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

[2] Vishwanathrao Deshpande Rural Inst Technol, Haliyal, Karnataka, India

来源：

APPLIED THERMAL ENGINEERING | 2018年 / 129卷

关键词：

Burnt clay; Additives; CaCl2; Process air; Composite desiccant; PGC; LIQUID DESICCANT; PACKED-BED; HEAT; ADSORBENTS;

D O I：

10.1016/j.applthermaleng.2017.09.127

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Transported clay suitable for pot making is used as desiccant carrier. Additives like saw dust and horse dung are considered in particle preparation. Particles nearly spherical in shape are prepared manually and are dried under shadow and subsequently the particles are dried at different temperatures. These burnt particles are characterized for pore volume and surface area. The BET test reveals that clay particles subjected to 500 degrees C possess higher pore volume but clay-horse dung particles exhibit higher surface area. Heat treated particles of clay with additives are impregnated with CaCl2 solution of 50% concentration. The ratio of desiccant water content to surrounding layer water content varies from 14.09 to 75.34 for CaCl2 based composite desiccants. One dimensional PGC mass transfer model for process air through burnt clay - additives - CaCl2 desiccant bed is adopted. The RMSE of measured and predicted results for reduction of moisture content from the process air by composite desiccant beds are in the range of 3.26-13.2%. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：70 / 83

页数：14

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