CORC  > 清华大学
薄膜透湿特性实验研究
刘晓伟 ; 闵敬春 ; LIU Xiaowei ; MIN Jingchun
2010-06-07 ; 2010-06-07
关键词薄膜 水蒸气 传质阻力 吸附曲线 扩散系数 membrane water vapor mass transfer resistance sorption curves diffusivity TB383.2
其他题名Experimental study of moisture penetration through membranes
中文摘要An experimental set-up was designed and constructed to investigate the water vapor permeation through membranes.The test section mainly consisted of an airflow channel,a membrane,and a water tank,which formed a sandwich structure.The channel had a 5 mm� mm cross-section and a 800mm length.Flowing in the channel was an air fluid with a low humidity.The membrane was sandwiched between the channel and water tank,forming an air gap with a higher humidity between the water and membrane.Moisture was transferred from the water to the air stream in the channel through the air gap and membrane.Tests were conducted on two membranes that included the PVDF(polyvinylidene fluoride)and PES(poly ether sulfone)membranes.The water vapor permeations through membranes were investigated.The membrane resistance was obtained by subtracting the convective moisture resistance in the channel and the moisture resistance caused by the air gap from the total moisture resistance.Through combination with the sorption curves of membranes,the diffusivities of moisture in membranes were estimated.The results showed that the diffusivities of the PVDF and PES membranes were in the order of 10-6 kg穖-1穝-1,and the former was about 4 times as great as the latter.; 国家自然科学基金项目(50576040)~~
语种中文 ; 中文
内容类型期刊论文
源URL[http://hdl.handle.net/123456789/37538]  
专题清华大学
推荐引用方式
GB/T 7714
刘晓伟,闵敬春,LIU Xiaowei,等. 薄膜透湿特性实验研究[J],2010, 2010.
APA 刘晓伟,闵敬春,LIU Xiaowei,&MIN Jingchun.(2010).薄膜透湿特性实验研究..
MLA 刘晓伟,et al."薄膜透湿特性实验研究".(2010).
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace