Hu Yanni, Tian Mei, Zhang Hong
Department of Nuclear Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang, China.
J Biomed Biotechnol. 2012;2012:419402. doi: 10.1155/2012/419402. Epub 2012 Mar 21.
Membrane distillation is a thermally driven membrane process for seawater desalination and purification at moderate temperatures and pressures. A hydrophobic micro-porous membrane is used in this process, which separates hot and cold water, allowing water vapor to pass through; while restricting the movement of liquid water, due to its hydrophobic nature. This paper provides an experimental investigation of heat and mass transfer in tubular membrane module for water desalination. Different operating parameters have been examined to determine the mass transport mechanism of water vapor. Based on the experimental results, the effects of operating parameters on permeate flux and the heat transfer analysis have been presented and discussed in details.
膜蒸馏是一种在中温及中压条件下用于海水淡化和提纯的热驱动膜过程。该过程使用疏水性微孔膜,这种膜可分离热水和冷水,允许水蒸气通过;同时因其疏水性限制液态水的移动。本文对用于水淡化的管式膜组件中的传热传质进行了实验研究。研究了不同的操作参数以确定水蒸气的传质机制。基于实验结果,详细介绍并讨论了操作参数对渗透通量的影响以及传热分析。