波浪能海水淡化的关键技术研究

项目名称： 波浪能海水淡化的关键技术研究

项目编号： No.51279088

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 水利工程

项目作者： 张永良

作者单位： 清华大学

项目金额： 80万元

中文摘要： 采用理论分析、数值模拟和试验研究相结合的方法，对海洋波浪能淡化海水的关键技术进行研究。基于波浪理论、流体-结构-泵的动力相互作用、管流理论，建立波浪能淡化海水装置系统的数学模型；分析在各种海洋动力条件下液压能随波浪要素变化而变化的规律；研究波能采集器和波浪能压力泵耦合的动力特性，探索波浪要素、波能采集器和波浪压力泵物理和几何特性对反渗透膜法生产淡水的影响规律；揭示在复杂海洋动力条件下波浪能淡化海水装置的运行特性；提出波浪能淡化海水装置系统的优化理论，优化波浪能海水淡化装置；研究小比例实海况下波浪能淡化海水装置的工作性能，进一步揭示提高系统淡化海水效率的途径和方法。通过理论分析、数值仿真和小比例实海况试验等手段解决波浪能淡化海水装置的关键技术问题，降低海水淡化成本，具有重要的科学意义和巨大的应用价值。

中文关键词： 波浪；波浪能转换器；海水淡化；反渗透膜；流体-结构相互作用

英文摘要： The key technology of sea water desalination utilizing ocean wave energy is studied by using the combined method of theoretical analysis,numerical simulation and experimental study. Based on wave theory,fluid-structure-pump dynamic inter -action and pipe flow theory, a mathematical model for the system of desalination utilizing ocean wave energy is established. Relationship between hydraulic pressure energy and wave parameters is analyzed for various marine hydrodynamic conditions. Dynamic characteristics of wave energy havestor-pressure pump coupling is investigated. Variation of salitated water quantity with wave parameters, wave energy harvestor's parameters and pressure pump's parameters is explored. Optimization theory for the system of sea water desalination utilizing ocean wave energy is presented. Operational characteristics of small scale system under real marine conditions is studied to reveal a way how to increase the efficiency of sea water desalination.Key problems for sea water desalination utilizing wave power are solved by using the combined methods of theoretical analysis, numerical simulation and small scale model tests in order to decrease the cost of desalinating sea water, this study has significan scientific importance and application.

英文关键词： wave；wave energy converter；sea water desalinization；reverse osmose membrane；fluid-structure interaction