| 摘要: |
| 为解决海洋波浪能和潮流能耦合利用的问题, 提升浪流发电装置的发电效率, 上海海洋大学课题组设计了一种新型涵道双向泵叶轮浪流发电装置。主要对轴流泵的工作原理进行理论分析, 阐述将轴流泵排水原理应用于浪流发电装置捕获浪流能的可行性, 基于轴流泵叶片设计原理, 设计出一种可以双向捕获浪流能的叶片。经数据仿真和水槽实验进行验证, 得出涵道双向泵叶轮浪流发电装置可以在浪流流速v=0.5 m/s工况下浪即可启动, 满足低流速启动要求, 发电效率最高为23.7%。 |
| 关键词: 轴流泵 浪流能 海洋能 Fluent 仿真 真水槽实验 |
| DOI：10.11759/hykx20160828002 |
| 分类号: |
| 基金项目:国家海洋局2013 年海洋可再生能源专项(SHME2013JS01);上海市2014 年优秀技术带头人计划项目(14XD1424300); 上海教委产学研项目(15cxy29); 上海海洋大学青年基金(A1-2035-15-002124) |
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| Study of a Wave-flow Generation Device with ducted bidirectional pump impeller |
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WANG Shi-ming,WU Shuai-qiao,TIAN Ka,BAI Lian-ping
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| Abstract: |
| A new type of Wave-flow Generation Device with a ducted bidirectional pump impeller is constructed based on the design principle of the axial-flow pump. In this study, the working principle of the axial-flow pump is analyzed and the back-stepping approach is used to design the device. A comparison with data from theoretical calculations, a numerical simulation, and tank experiments relating to the device shows the power generation efficiency of the device in different working conditions. Results show that the device can be started at a flow rate of 0.5 m/s, its output power is close to rated power at a flow rate of 1.8 m/s, and its energy conversion rate is at its highest of up to 23.7% when the working flow rate is below 1.8 m/s. However, when the working flow rate exceeds 1.8 m/s, the energy conversion rate begins to decline because the increase in the tail flow field strongly increases the reversal force to the pump impeller. |
| Key words: axial-flow pump wave-flow energy ocean energy fluent simulation tank experiment |
