The Influence of Shell-side Flows on Mass Transfer in Hollow Fiber Membrane Modules

壳程流动对中空纤维膜组件传质的影响

• 批准号: 9408414
• 负责人: G. Glenn Lipscomb
• 金额: $ 19.06万
• 依托单位: University of Toledo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9408414&HistoricalAwards=false
• 关键词: Influence; Shell; side; Flows; Mass

CTS-9408414 University of Toledo G. Glenn Lipscomb The research deals with mass transfer in hollow membrane modules, particularly the effect of flows external to the fiber bundle. Hollow fiber membranes are being used increasingly in a variety of separation processes such as filtration, reverse osmosis, dialysis, gas purification, and pervaporation. Theory will be developed to predict the shell-side velocity fields. In particular, the effects of parameters such as fiber packing uniformity and module dimensions on the fluid residence time distribution will be determined. The model will be extended to include simultaneous mass transfer from fiber lumen to the shell. The theoretical results will be verified using hollow fiber artificial kidneys. The proposed research is expected to lead to improved designs of large-scale membrane modules based on engineering principles rather than trial-and-error experiments. An understanding of mass transfer and its effective control are necessary for wide scale application of membrane separations important to biotechnology, water treatment and hence civil infrastructure, environment and manufacturing.

托莱多大学G.格伦·利普斯科姆 研究了中空膜组件中的传质，特别是纤维束外部流动的影响。 中空纤维膜越来越多地用于各种分离过程，如过滤、反渗透、透析、气体纯化和渗透蒸发。 将发展理论来预测壳程速度场。 特别地，将确定诸如纤维填充均匀性和模块尺寸等参数对流体停留时间分布的影响。 该模型将扩展到包括从纤维腔到壳体的同时传质。 将使用中空纤维人工肾来验证理论结果。 预计拟议的研究将导致基于工程原理而不是试错实验的大型膜组件的改进设计。 了解传质及其有效控制对于膜分离技术的大规模应用是必要的，这对生物技术、水处理以及民用基础设施、环境和制造业都很重要。