Prediction of sediment wear of francis turbine with high head and high sediment content
Wear of runner blades is a common problem affecting the operational reliability of turbines with high head and high sediment content. In order to accurately predict the wear of the turbine runner blade, based on the solid-liquid two-phase flow equation and turbulence model, the full channel numerica...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1117606/full |
| _version_ | 1797956151172661248 |
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| author | Jun Pan Jianfeng Ma Junzhao Han Ye Zhou Lielong Wu Weiliang Zhang |
| author_facet | Jun Pan Jianfeng Ma Junzhao Han Ye Zhou Lielong Wu Weiliang Zhang |
| author_sort | Jun Pan |
| collection | DOAJ |
| description | Wear of runner blades is a common problem affecting the operational reliability of turbines with high head and high sediment content. In order to accurately predict the wear of the turbine runner blade, based on the solid-liquid two-phase flow equation and turbulence model, the full channel numerical simulation of the internal water and sediment flow was carried out, and the sediment volume distribution and sand water velocity on the turbine runner blade were obtained. Then, according to the digital simulation results and the operating parameters of the turbine runner, the sediment wear test scheme for the turbine blade material specimen is designed, and the sediment wear test is carried out on the runner material. According to the test results, the sediment wear curve of runner blade material is obtained and applied to numerical simulation, and the main position and wear degree of turbine blade sediment erosion are predicted. The inspection results of the runner blade wear after the unit has operated for a flood season show that obvious wear can be seen at the outlet edge of the lower band of the runner blade, and the wear position and wear amount are basically consistent with the simulation values. The study is of great importance for predicting the wear of turbine runner blades with high drop height and high sediment content, and for turbine maintenance under complex conditions. |
| first_indexed | 2024-04-10T23:44:24Z |
| format | Article |
| id | doaj.art-1e993834b4a7458ab33375e402433322 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-10T23:44:24Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-1e993834b4a7458ab33375e4024333222023-01-11T04:54:53ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-01-011010.3389/fenrg.2022.11176061117606Prediction of sediment wear of francis turbine with high head and high sediment contentJun Pan0Jianfeng Ma1Junzhao Han2Ye Zhou3Lielong Wu4Weiliang Zhang5Zhejiang Province’s Key Laboratory of Reliability Technology for Mechanical and Electronic Product, Zhejiang Sci-Tech University, Hangzhou, ChinaZhejiang Province’s Key Laboratory of Reliability Technology for Mechanical and Electronic Product, Zhejiang Sci-Tech University, Hangzhou, ChinaZhejiang Province’s Key Laboratory of Reliability Technology for Mechanical and Electronic Product, Zhejiang Sci-Tech University, Hangzhou, ChinaDepartment of Operation Support, Institute of Hydraulic Machinery, China Institute of Water Resources and Hydropower Research, Beijing, ChinaHangzhou Resource Power Equipment Co.Ltd, Hangzhou, ChinaZhejiang Province’s Key Laboratory of Reliability Technology for Mechanical and Electronic Product, Zhejiang Sci-Tech University, Hangzhou, ChinaWear of runner blades is a common problem affecting the operational reliability of turbines with high head and high sediment content. In order to accurately predict the wear of the turbine runner blade, based on the solid-liquid two-phase flow equation and turbulence model, the full channel numerical simulation of the internal water and sediment flow was carried out, and the sediment volume distribution and sand water velocity on the turbine runner blade were obtained. Then, according to the digital simulation results and the operating parameters of the turbine runner, the sediment wear test scheme for the turbine blade material specimen is designed, and the sediment wear test is carried out on the runner material. According to the test results, the sediment wear curve of runner blade material is obtained and applied to numerical simulation, and the main position and wear degree of turbine blade sediment erosion are predicted. The inspection results of the runner blade wear after the unit has operated for a flood season show that obvious wear can be seen at the outlet edge of the lower band of the runner blade, and the wear position and wear amount are basically consistent with the simulation values. The study is of great importance for predicting the wear of turbine runner blades with high drop height and high sediment content, and for turbine maintenance under complex conditions.https://www.frontiersin.org/articles/10.3389/fenrg.2022.1117606/fullsediment wearsediment contentcomplex conditionsfrancis turbinewear depth |
| spellingShingle | Jun Pan Jianfeng Ma Junzhao Han Ye Zhou Lielong Wu Weiliang Zhang Prediction of sediment wear of francis turbine with high head and high sediment content Frontiers in Energy Research sediment wear sediment content complex conditions francis turbine wear depth |
| title | Prediction of sediment wear of francis turbine with high head and high sediment content |
| title_full | Prediction of sediment wear of francis turbine with high head and high sediment content |
| title_fullStr | Prediction of sediment wear of francis turbine with high head and high sediment content |
| title_full_unstemmed | Prediction of sediment wear of francis turbine with high head and high sediment content |
| title_short | Prediction of sediment wear of francis turbine with high head and high sediment content |
| title_sort | prediction of sediment wear of francis turbine with high head and high sediment content |
| topic | sediment wear sediment content complex conditions francis turbine wear depth |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.1117606/full |
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