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Flow Characteristics and Power Generation Effect of a Seawater Intake Caisson Integrated with a Wave-Energy Converter
| 题名： | Flow Characteristics and Power Generation Effect of a Seawater Intake Caisson Integrated with a Wave-Energy Converter |
| 正文语种： | eng |
| 作者： | Zhe Ma;Mingyue Gao;Gangjun Zhai;Deshuai Tian |
| 作者单位： | State Key Laboratory of Coastal and Offshore Engineering Dalian Univ. of Technology Dalian 116000 People's Republic of China;Deepwater Engineering Research Centre Dalian Univ. of Technology Dalian 116000 People's Republic of China;State Key Laboratory of Coastal and Offshore Engineering Dalian Univ. of Technology Dalian 116000 People's Republic of China;POWERCHINA Chengdu Engineering Corporation Limited Chengdu 611130 People's Republic of China. |
| 关键词： | Seawater intake caisson; Water purification; Electric self-compensation; Flow velocity |
| 摘要： | Seawater intake caissons are a kind of structure widely used in seawater extraction. Many existing seawater intake caissons have problems with poor water quality and large power consumption. In this paper, a new type of seawater intake caisson with an oscillating water column wave-energy conversion device is proposed to improve water quality and electricity compensation. A wave-energy conversion device at the front end of the structure can reduce the disturbance of wave energy to the rear water intake area, which is conducive to sediment deposition. In the meantime, it can also realize a certain compensation for the electricity consumption required for pumping water. Based on the two-phase flow solver (OpenFOAM-4.x), through a comparison and analysis of streamlining and flow velocity in the rear water intake area, it was found that the water purification effects of the integrated structure proved more effective than those of the traditional structure, and the overall average velocity of the flow field reduced by 10%-40%. The optimal energy conversion efficiency of the integrated structure was obtained by optimizing different parameters such as the ratio of the chamber width to the wavelength, the orifice size, the draft of the front wall, and the draft of the intermediate baffle. |
| 出版年： | 2023 |
| 期刊名称： | Journal of Waterway, Port, Coastal and Ocean Engineering |
| 卷： | 149 |
| 期： | 3 |
| 页码： | 0402300.1-0402300.12 |
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