中空纤维膜除湿组件的热质传递特性

doi:10.11949/j.issn.0438-1157.20170547

化工学报 ›› 2017, Vol. 68 ›› Issue (S1): 96-104.DOI: 10.11949/j.issn.0438-1157.20170547

中空纤维膜除湿组件的热质传递特性

赵媛媛, 何奎, 李斯陶, 张立志

华南理工大学化学与化工学院, 广东广州 510640

收稿日期:2017-05-04 修回日期:2017-05-10 出版日期:2017-08-31 发布日期:2017-08-31
通讯作者: 张立志,lzzhang@scut.edu.cn
基金资助:
国家杰出青年科学基金项目（51425601）。

Heat and mass transfer in hollow fiber module for dehumification

ZHAO Yuanyuan, HE Kui, LI Sitao, ZHANG Lizhi

College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China

Received:2017-05-04 Revised:2017-05-10 Online:2017-08-31 Published:2017-08-31
Supported by:
supported by the National Science Fund for Distinguished Young Scholars (51425601).

摘要/Abstract

摘要：

中空纤维膜液体干燥剂空气除湿技术是一种结合液体除湿和膜分离技术的新型除湿技术，这种技术避免了气液直接接触，从本质上克服了传统液体除湿技术气液夹带的难题。中空纤维膜作为间接接触的介质，新风和除湿溶液通过膜进行共轭传质传热。探究南方湿热气候下该技术的可行性，根据南方气候条件下室内新风的特点设计并制造一种中空纤维膜除湿组件，建立相应的数学模型，研究不同进口新风工况和溶液工况下组件的除湿性能，分析组件内的传热传质机理，提出了组件性能的优化方向。研究结果可为中空纤维膜组件的设计提供基础理论。

关键词: 膜, 传热, 实验验证, 中空纤维膜组件, 液体除湿, 耦合热质传递, 传热单元数

Abstract:

Hollow fiber membrane-based dehumification technology is a new process which combines the liquid dehumification technology and membrane separation technology. It prevents the direct contact between the air and solution and thus solve the problem of liquid drop entrainment,which is harmful for human and metal. In this new process,the air and solution is separated. The heat and mass are coupled and exchanged through a selective permeable membrane. In this paper,the application possibility of this new technology in south China is investigated. The module and test condition are designed according to the features of fresh air in south China. A model is established for this model and it is validated via experiment. And the relation of module performance and inlet air flow rate,relative humidity,inlet solution flow rate and temperature are investigated. The heat and mass transfer mechanism in the module is discussed and performance optimization criteria is raised. The result provides basic theory for module design.

Key words: film, heat transfer, experimental validation, hollow fiber membrane module, liquid dehumification, coupled heat and mass transfer, NTU

中图分类号:

TQ028.8

赵媛媛, 何奎, 李斯陶, 张立志. 中空纤维膜除湿组件的热质传递特性[J]. 化工学报, 2017, 68(S1): 96-104.

ZHAO Yuanyuan, HE Kui, LI Sitao, ZHANG Lizhi. Heat and mass transfer in hollow fiber module for dehumification[J]. CIESC Journal, 2017, 68(S1): 96-104.

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中空纤维膜除湿组件的热质传递特性

Heat and mass transfer in hollow fiber module for dehumification

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