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To decrease the costs associated with wave energy conversion and improve the performance of wave energy converters (WECs), a multi-float WEC that also serves as a breakwater is proposed, and its hydrodynamic performance is explored through physical model tests. The control variable method was used to investigate the free water surface, the dynamic response of the floats, and the energy conversion of the device under different PTO damping loads and wave conditions. These tests allowed for an analysis of the wave energy capture, as well as the device’s ability to prevent and dissipate waves. The test results show that the device functions well as a breakwater, with an average transmittance of 0.48 under typical test conditions, meaning that less than a quarter of the wave energy is transmitted to the rear of the device. Moreover, the device can effectively convert wave energy, with Ke exceeding 20% within the range of 0.64≤kh≤1.39 under suitable PTO loads.

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为降低波浪能发电成本,优化波能装置性能,提出一种兼作防波堤的多浮子式波能装置,并通过物理模型试验,探究其水动力学性能。通过控制变量法探究不同动力输出负载阻尼和波浪条件作用下装置附近液面变化、浮子动态响应及装置能量转换情况,分析装置波浪能俘获与防浪消波性能。试验结果表明,装置可以很好地起到防波堤的作用,试验平均透射率为0.48,传递到装置后侧的波浪能量小于入射波的1/4。同时,通过合理配置动力输出负载阻尼,波能装置可有效转换波浪能,在0.64≤kh≤1.39范围内实现能量转换效率大于20%。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
彭伟(1983-),男,博士、副教授,研究方向为海洋可再生能源开发,E-mail:
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张颖男(1999-),女,硕士研究生,研究方向为港航海工结构及其与环境相互作用,E-mail:

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张颖男(1999-),女,硕士研究生,研究方向为港航海工结构及其与环境相互作用,E-mail:

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张颖男(1999-),女,硕士研究生,研究方向为港航海工结构及其与环境相互作用,E-mail:

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多浮子式波能装置水动力学性能研究
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张颖男 , 彭伟
水电能源科学 | 机电与控制工程 2023,41(8): 204-208
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水电能源科学 | 机电与控制工程 2023, 41(8): 204-208
多浮子式波能装置水动力学性能研究
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张颖男 , 彭伟
作者信息
  • 河海大学海岸灾害及防护教育部重点实验室,江苏 南京 210098
  • 张颖男(1999-),女,硕士研究生,研究方向为港航海工结构及其与环境相互作用,E-mail:

通讯作者:

彭伟(1983-),男,博士、副教授,研究方向为海洋可再生能源开发,E-mail:
Study on Hydrodynamic Performance of Multi-float Wave Energy Converter
Ying-nan ZHANG , Wei PENG
Affiliations
  • Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Hohai University, Nanjing 210098, China
出版时间: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20230467
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为降低波浪能发电成本,优化波能装置性能,提出一种兼作防波堤的多浮子式波能装置,并通过物理模型试验,探究其水动力学性能。通过控制变量法探究不同动力输出负载阻尼和波浪条件作用下装置附近液面变化、浮子动态响应及装置能量转换情况,分析装置波浪能俘获与防浪消波性能。试验结果表明,装置可以很好地起到防波堤的作用,试验平均透射率为0.48,传递到装置后侧的波浪能量小于入射波的1/4。同时,通过合理配置动力输出负载阻尼,波能装置可有效转换波浪能,在0.64≤kh≤1.39范围内实现能量转换效率大于20%。

波浪能  /  波能装置  /  防波堤  /  水动力性能  /  试验研究

To decrease the costs associated with wave energy conversion and improve the performance of wave energy converters (WECs), a multi-float WEC that also serves as a breakwater is proposed, and its hydrodynamic performance is explored through physical model tests. The control variable method was used to investigate the free water surface, the dynamic response of the floats, and the energy conversion of the device under different PTO damping loads and wave conditions. These tests allowed for an analysis of the wave energy capture, as well as the device’s ability to prevent and dissipate waves. The test results show that the device functions well as a breakwater, with an average transmittance of 0.48 under typical test conditions, meaning that less than a quarter of the wave energy is transmitted to the rear of the device. Moreover, the device can effectively convert wave energy, with Ke exceeding 20% within the range of 0.64≤kh≤1.39 under suitable PTO loads.

wave energy  /  wave energy converter  /  breakwater  /  hydrodynamic performance  /  experimental investigation
张颖男, 彭伟. 多浮子式波能装置水动力学性能研究. 水电能源科学, 2023 , 41 (8) : 204 -208 . DOI: 10.20040/j.cnki.1000-7709.2023.20230467
Ying-nan ZHANG, Wei PENG. Study on Hydrodynamic Performance of Multi-float Wave Energy Converter[J]. Water Resources and Power, 2023 , 41 (8) : 204 -208 . DOI: 10.20040/j.cnki.1000-7709.2023.20230467
  • 国家重点研发计划(2022YFB4200700)
2023年第41卷第8期
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doi: 10.20040/j.cnki.1000-7709.2023.20230467
  • 接收时间:2023-03-28
  • 首发时间:2026-01-28
  • 出版时间:2023-08-25
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  • 收稿日期:2023-03-28
  • 修回日期:2023-04-28
基金
国家重点研发计划(2022YFB4200700)
作者信息
    河海大学海岸灾害及防护教育部重点实验室,江苏 南京 210098

通讯作者:

彭伟(1983-),男,博士、副教授,研究方向为海洋可再生能源开发,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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