Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement
Experimental tests on two tandem triangular prisms were accomplished in synergistic flow-induced motion (FIM) to collect ocean current energy (OCE) with varied spacing ratios and Reynolds number ranges. Typical FIM responses and energy conversion are discussed and presented. The effects of parameter...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-08-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1231966/full |
| _version_ | 1797741544622522368 |
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| author | Nan Shao Nan Shao Guobin Xu Zhichuan Wu Zhichuan Wu Fang Liu Xiang Yan Xiaoqun Wang Xiaoqun Wang |
| author_facet | Nan Shao Nan Shao Guobin Xu Zhichuan Wu Zhichuan Wu Fang Liu Xiang Yan Xiaoqun Wang Xiaoqun Wang |
| author_sort | Nan Shao |
| collection | DOAJ |
| description | Experimental tests on two tandem triangular prisms were accomplished in synergistic flow-induced motion (FIM) to collect ocean current energy (OCE) with varied spacing ratios and Reynolds number ranges. Typical FIM responses and energy conversion are discussed and presented. The effects of parameters (system stiffness, spacing ratio, and load resistance) were considered to improve the energy harvesting of the system. The main findings can be summarized as follows: 1) with varied spacing ratios between the two tandem prisms, the active power (Pharn) was up to 1.95 times that of the single triangular prism (STP); 2) In general, the harnessed OCE capacity of the upstream triangular prism (UTP) was improved, while the energy harvesting of the downstream triangular prism (DTP) was suppressed by the interaction of the two prisms, 3) In the tests, electricity was generated at U = 0.516 m/s, and the active power, which consistently increased as flow velocity increased, reached Pharn = 32.24 W, with a corresponding efficiency of ηharn = 10.31%; and 4) The best energy conservation performance for harvesting the OCE occurred at L/D = 5, and the optimal load resistance was found at RL = 11 Ω. |
| first_indexed | 2024-03-12T14:28:15Z |
| format | Article |
| id | doaj.art-4e2fface175f4ce58c5ddf8b023eaf51 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-03-12T14:28:15Z |
| publishDate | 2023-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-4e2fface175f4ce58c5ddf8b023eaf512023-08-17T22:08:43ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-08-011110.3389/fenrg.2023.12319661231966Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangementNan Shao0Nan Shao1Guobin Xu2Zhichuan Wu3Zhichuan Wu4Fang Liu5Xiang Yan6Xiaoqun Wang7Xiaoqun Wang8State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaSchool of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaSchool of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, ChinaSchool of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan, ChinaExperimental tests on two tandem triangular prisms were accomplished in synergistic flow-induced motion (FIM) to collect ocean current energy (OCE) with varied spacing ratios and Reynolds number ranges. Typical FIM responses and energy conversion are discussed and presented. The effects of parameters (system stiffness, spacing ratio, and load resistance) were considered to improve the energy harvesting of the system. The main findings can be summarized as follows: 1) with varied spacing ratios between the two tandem prisms, the active power (Pharn) was up to 1.95 times that of the single triangular prism (STP); 2) In general, the harnessed OCE capacity of the upstream triangular prism (UTP) was improved, while the energy harvesting of the downstream triangular prism (DTP) was suppressed by the interaction of the two prisms, 3) In the tests, electricity was generated at U = 0.516 m/s, and the active power, which consistently increased as flow velocity increased, reached Pharn = 32.24 W, with a corresponding efficiency of ηharn = 10.31%; and 4) The best energy conservation performance for harvesting the OCE occurred at L/D = 5, and the optimal load resistance was found at RL = 11 Ω.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1231966/fullflow-induced motionocean current energyspacing ratiotriangular prismgalloping |
| spellingShingle | Nan Shao Nan Shao Guobin Xu Zhichuan Wu Zhichuan Wu Fang Liu Xiang Yan Xiaoqun Wang Xiaoqun Wang Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement Frontiers in Energy Research flow-induced motion ocean current energy spacing ratio triangular prism galloping |
| title | Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement |
| title_full | Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement |
| title_fullStr | Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement |
| title_full_unstemmed | Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement |
| title_short | Experimental study on flow-induced motion and energy conversion for two triangular prisms in tandem arrangement |
| title_sort | experimental study on flow induced motion and energy conversion for two triangular prisms in tandem arrangement |
| topic | flow-induced motion ocean current energy spacing ratio triangular prism galloping |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1231966/full |
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