Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant

乞炳蔚; 王越; 王照成; 张燕平; 徐世昌; 王世昌

doi:10.1016/S1004-9541(13)60625-4

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Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant

流体力学与传递现象 | Updated：2026-01-06

- Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant
- Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant
- 中国化学工程学报（英文版） 2013年21卷第11期页码：1216-12231004-954160625-4
- Affiliations：
  
  Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60625-4
  中图分类号：
- 纸质出版：2013
- Accepted：
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乞炳蔚, 王越, 王照成, 等. Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant[J]. 中国化学工程学报（英文版）, 2013,21(11):1216-12231004-954160625-4.

QI Bingwei, WANG Yue, WANG Zhaocheng, ZHANG Yanping, XU Shichang, WANG Shichang. Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant[J]. Chin.J.Chem.Eng., 2013, 21(11): 1216-1223.
乞炳蔚, 王越, 王照成, 等. Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant[J]. 中国化学工程学报（英文版）, 2013,21(11):1216-12231004-954160625-4. DOI： 10.1016/S1004-9541(13)60625-4.

QI Bingwei, WANG Yue, WANG Zhaocheng, ZHANG Yanping, XU Shichang, WANG Shichang. Theoretical Investigation on Internal Leakage and Its Effect on the Efficiency of Fluid Switcher-Energy Recovery Device for Reverse Osmosis Desalting Plant[J]. Chin.J.Chem.Eng., 2013, 21(11): 1216-1223. DOI： 10.1016/S1004-9541(13)60625-4.

摘要

Abstract

This work is focused on the theoretical investigation of internal leakage of a newly developed pilot-scale fluid switcher-energy recovery device (FS-ERD) for reverse osmosis (RO) system. For the purpose of increasing FS-ERD efficiency and reducing the operating cost of RO

it is required to control the internal leakage in a low level. In this work

the internal leakage rates at different leakage gaps and retentate brine pressures are investigated by computational fluid dynamics (CFD) method and validating experiments. It is found that the internal leakage has a linear relationship with the retentate brine pressure and a polynomial relationship with the scale of leakage gap. The results of the present work imply that low internal leakage and high retentate brine pressure bring benefits to achieve high FS-ERD efficiency.

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