Investigation on submarine reverse osmosis seawater desalination system assisted by ocean thermal energy

被引：0
|
作者：
Wang J. [1 ]
Zhang D. [1 ]
Liu X. [1 ]
机构：
[1] Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, MOE, School of Mechanical Engineering, Tianjin University, Tianjin
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 10期
关键词：
Desalination; Hydrostatic pressure; Ocean thermal energy; Reverse osmosis;
D O I：
10.19912/j.0254-0096.tynxb.2019-1076
中图分类号：
学科分类号：
摘要：
This research proposes a new type of submarine reverse osmosis-conveyor system. The working cycle of the conveyor is obtained by thermodynamic method. The optimal design solution with the goal of minimizing the energy consumption per unit water production (SEC) is obtained. The results show that the optimal SEC decreases when the operating pressure decreases and the recovery rate increases. The SEC of the proposed system, the submarine RO-pump system and the land-based RO system are compared. The results show at the recovery rate of 0.5, the SEC of the submarine RO-pump system is about 50% which is lower than that of the land-based RO system due to the effect of hydrostatic pressure. With the help of ocean thermal energy, SEC of the submarine RO-conveyor system is further lower 10%-18% than that of the submarine RO-water pump system. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：394 / 398
页数：4
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