集成于海水淡化系统的盐差能发电系统性能分析

Performance analysis of the salinity gradient power generation system integrated into the seawater desalination system

海水淡化是解决淡水紧缺的一个重要途径。目前,海水淡化技术存在能耗大、成本高等问题。海洋中存在丰富的盐差能,而且在各种海洋能存在形式中能量密度最大,具有很好的应用前景。传统的盐差能发电系统存在对选址有特殊要求、效率低等问题,应用受到局限。针对这些问题,文章把盐差能发电系统和海水淡化系统结合在一起,提出了一种集成于海水淡化系统的盐差能发电系统,希望能为今后的海水淡化和盐差能利用提供参考。论文详细阐述了该系统的工作原理,分析了具体工作过程,并对系统的产能和能耗情况进行了估算。在合理的设计范围内,可以利用海洋盐差能发电补偿海水淡化过程中的大部分电能消耗。

Seawater desalination is an important way to solve the shortage of fresh water. At present,there are several problems in desalination technology, such as huge energy consumption, high production cost and so on. Among various forms of ocean energy, salinity gradient energy processes the highest energy density, which has a good application prospect. Application of traditional salinity gradient power generation system are limited due to special site demand as well as low efficiency. In this paper, the salinity gradient power generation system is combined with seawater desalination system. The proposed salinity gradient generation system integrated into the seawater desalination system is advanced to some extent, offering a reference for the future utilization of seawater desalination and salinity gradient power generation. The paper elaborates the working principle of the system, analyzes the specific working process, and estimates the energy production and consumption of the system. It is proved that on the basis of a reasonable design, the salinity gradient power generation system could realize the self-sufficiency during the process of seawater desalination.