中空纤维膜管束液体除湿再生过程中的热湿耦合传递

doi:10.3969/j.issn.0438-1157.2014.z1.005

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 27-31.DOI: 10.3969/j.issn.0438-1157.2014.z1.005

中空纤维膜管束液体除湿再生过程中的热湿耦合传递

黄斯珉, 陈佰满, 杨敏林, 肖汉敏

东莞理工学院能源与化工系, 广东省分布式能源系统研究重点实验室, 广东东莞 523808

收稿日期:2014-01-15 修回日期:2014-01-22 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 陈佰满
基金资助:
国家自然科学基金项目（51306038）；广东高校优秀青年创新人才培养计划项目（LYM11129）。

Coupled heat and moisture in hollow fiber membrane tube bank used for desiccant regeneration in liquid desiccant air dehumidification process

HUANG Simin, CHEN Baiman, YANG Minlin, XIAO Hanmin

Key Laboratory of Distributed Energy Systems of Guangdong Province, School of Energy and Chemical Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China

Received:2014-01-15 Revised:2014-01-22 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China (51306038) and Foundation for Distinguished Young Talents in Higher Education of Guangdong (LYM11129).

摘要/Abstract

摘要： 研究了中空纤维膜管束液体除湿再生过程中的热湿耦合传递特性。选择了两根膜纤维管及其管内部溶液流和管间空气流作为研究对象，建立了控制流体流动与传热传质过程的偏微分方程，并采用有限容积离散方法和贴体坐标转换方法进行求解，获得了计算单元内的阻力系数、Nusselt数和Sherwood数，分析了耦合边界条件下的Nusselt数和Sherwood数与相应等壁温和等热流密度边界条件下的相应准则数之间的差异。这些研究结果可以为用于液体除湿再生过程的中空纤维膜管束构成的膜接触器的结构设计提供理论基础。

关键词: 中空纤维膜管束, 液体除湿, 溶液再生, 逆流, 热湿耦合

Abstract: The coupled heat and moisture transfer in a counter flow hollow fiber membrane tube bank used for liquid desiccant regeneration are investigated. Two fibers, the solution stream inside the fibers, and the air stream surrounding the fibers are selected as the calculating domain. The partial differential equations governing the fluid flow and heat mass transports are established and solved by a controlled volume method and a body-fitted transform technology. The friction factor, Nusselt and Sherwood numbers in the unit cells during the desiccant regeneration process are obtained and analyzed. These fundamental data for the uniform temperature and heat flux boundary conditions are compared. The features of the heat and moisture transports for the solution regeneration are disclosed.

Key words: hollow fiber membrane tube bank, liquid desiccant air dehumidification, solution regeneration, counter flow, coupled heat and moisture transfer

中图分类号:

黄斯珉, 陈佰满, 杨敏林, 肖汉敏. 中空纤维膜管束液体除湿再生过程中的热湿耦合传递[J]. 化工学报, 2014, 65(S1): 27-31.

HUANG Simin, CHEN Baiman, YANG Minlin, XIAO Hanmin. Coupled heat and moisture in hollow fiber membrane tube bank used for desiccant regeneration in liquid desiccant air dehumidification process[J]. CIESC Journal, 2014, 65(S1): 27-31.

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中空纤维膜管束液体除湿再生过程中的热湿耦合传递

Coupled heat and moisture in hollow fiber membrane tube bank used for desiccant regeneration in liquid desiccant air dehumidification process

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