Effect of wettability on nanoporous ceramic membrane for condensate transport performance

LI Yun; HU Haowei

doi:10.11949/j.issn.0438-1157.20170101

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Effect of wettability on nanoporous ceramic membrane for condensate transport performance

更新时间：2025-12-10

- Effect of wettability on nanoporous ceramic membrane for condensate transport performance
- CIESC Journal Issue 9, Pages: 3474-3481(2017)
- 作者机构：
  
  1. 安徽建筑大学机械与电气工程学院,安徽,合肥,230601
  2. 安徽建筑大学环境与能源工程学院,安徽,合肥,230601
  3. 热流科学与工程教育部重点实验室, 西安交通大学,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170101
  CLC： K121
- Online First：05 September 2017，
  
  Published：05 September 2017
- 稿件说明：
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LI Yun, HU Haowei. Effect of wettability on nanoporous ceramic membrane for condensate transport performance[J]. CIESC Journal, 2017, (9): 3474-3481.
DOI：

LI Yun, HU Haowei. Effect of wettability on nanoporous ceramic membrane for condensate transport performance[J]. CIESC Journal, 2017, (9): 3474-3481. DOI： 10.11949/j.issn.0438-1157.20170101.

摘要

为了实现复杂环境中高效回收水资源，采用先进的膜技术，基于建立的半连续超临界相反应改性实验装置对纳米多孔陶瓷膜分别进行亲水和疏水表面改性，通过接触角测量、微观结构观测等方法对润湿改性前后的纳米多孔陶瓷膜进行表征。基于单管管外水蒸气冷凝传热实验系统，对润湿改性前后的纳米多孔陶瓷膜进行了冷凝液输运特性的实验研究，揭示了混合气体温度、冷却水流速、跨膜压差和水蒸气体积分数等典型运行参数对纳米多孔陶瓷膜的冷凝液输运通量的影响规律与机理。同时，采用分子动力学方法，构建了水在不同润湿性纳米孔内输运模拟体系，研究水分子在不同润湿性纳米孔内的输运规律。

Abstract

To recover the residual water efficiently in the complex environment

the advanced membrane technology was employed. Based on the experiment apparatus of the semicontinuous supercritical reactions

the wettability-modified nanoporous ceramic membranes were achieved by using semicontinuous supercritical reactions. The microstructure and characterization of both hydrophilic and hydrophobic nanoporous membranes were investigated by the methods of the contact angle measurement

electron microscope scan and electron spectroscopy analysis. Based on the experimental system of vapor condensation heat transfer on a single tube

the investigation of condensate transport through the nanoporous membrane with and without wettability modificaion was carried out. The effects of typical parameters including coolant flow rate

mixture gas temperature

transmembrane pressure and water vapor volume fraction on heat and mass transfer performance are studied. To explore the mechanism of water transport in nanoscale channels with different surface wettability

the method of molecular dynamics simulation was employed. The transport of water through a single nanopore was simulated.

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