Modeling of a flat plate membrane-distillation system for liquid desiccant regeneration in air-conditioning applications

被引：30
|
作者：
Rattner, Alexander S. [1 ]
Nagavarapu, Ananda Krishna [1 ]
Garimella, Srinivas [1 ]
Fuller, Thomas F. [2 ]
机构：
[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[2] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2011年 / 54卷 / 15-16期
关键词：
Liquid desiccants; Desiccant air conditioning; Membrane distillation; Waste heat recovery; HVAC APPLICATIONS; DEHUMIDIFIER; LITHIUM; ENERGY;
D O I：
10.1016/j.ijheatmasstransfer.2011.02.064
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermally driven flat plate air gap membrane distillation liquid desiccant regenerator for lithium chloride in dehumidification applications is modeled. Operating conditions and device geometry are optimized, and it is found that membrane materials have little influence on regenerator performance. It is shown that radiation heat transfer across the air gap cannot be neglected. The regenerator removes 11.4 g min(-1) cm(-3) of moisture with a COP 01 0.372 for an inlet solution concentration of 0.38, solution flow rate of 50 ml min(-1), and heated solution temperature of 135 degrees C. This design has negligible desiccant carry-over losses and operates without a blower. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3650 / 3660
页数：11
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