Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants
This study investigates the reliability of Francis turbines and highlights the critical need for an improved deformation monitoring system for bolts that fasten a hydroturbine head-cover to its casing. During different operational stages of the hydraulic unit, such as start-up, partial load, and ful...
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| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/8/2548 |
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| author | Eddy Yujra Rivas Alexander Vyacheslavov Kirill V. Gogolinskiy Kseniia Sapozhnikova Roald Taymanov |
| author_facet | Eddy Yujra Rivas Alexander Vyacheslavov Kirill V. Gogolinskiy Kseniia Sapozhnikova Roald Taymanov |
| author_sort | Eddy Yujra Rivas |
| collection | DOAJ |
| description | This study investigates the reliability of Francis turbines and highlights the critical need for an improved deformation monitoring system for bolts that fasten a hydroturbine head-cover to its casing. During different operational stages of the hydraulic unit, such as start-up, partial load, and full load, the hydroturbine head-cover and its fastening bolts are subjected to static and cyclic loads. The loads generate vibrations and different deformations that must be monitored. Although various measuring instruments, such as vibration sensors and accelerometers, have been developed to monitor hydroturbine vibrations, only two systems—KM-Delta-8-CM and PTK KM-Delta—are currently applied to measure fastening bolt deformation. Furthermore, only one system, SKDS-SISH, was found to monitor the forces inducing this deformation. After analysis, it is evident that the described systems for monitoring the deformation of the fastening bolts do not guarantee the trustworthiness of the measuring sensors and there is a need for their improvement. The implementation of a self-checking function (including metrological features), the development of a digital twin of the sensor, and the application of technologies based on artificial intelligence could solve this problem. |
| format | Article |
| id | doaj-art-19be8daccdd6435d91deabcd8925625a |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-19be8daccdd6435d91deabcd8925625a2025-08-20T03:13:49ZengMDPI AGSensors1424-82202025-04-01258254810.3390/s25082548Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power PlantsEddy Yujra Rivas0Alexander Vyacheslavov1Kirill V. Gogolinskiy2Kseniia Sapozhnikova3Roald Taymanov4Department of Metrology, Instrumentation and Quality Management, Empress Catherine II Saint Petersburg Mining University, Saint Petersburg 199106, RussiaDepartment of Metrology, Instrumentation and Quality Management, Empress Catherine II Saint Petersburg Mining University, Saint Petersburg 199106, RussiaMaterials Science Department, Petersburg Nuclear Physics Institute, Gatchina 188300, RussiaLaboratory for Metrological Maintenance of Computerized Sensors and Measuring Systems, D. I. Mendeleyev Institute for Metrology, Saint Petersburg 199005, RussiaLaboratory for Metrological Maintenance of Computerized Sensors and Measuring Systems, D. I. Mendeleyev Institute for Metrology, Saint Petersburg 199005, RussiaThis study investigates the reliability of Francis turbines and highlights the critical need for an improved deformation monitoring system for bolts that fasten a hydroturbine head-cover to its casing. During different operational stages of the hydraulic unit, such as start-up, partial load, and full load, the hydroturbine head-cover and its fastening bolts are subjected to static and cyclic loads. The loads generate vibrations and different deformations that must be monitored. Although various measuring instruments, such as vibration sensors and accelerometers, have been developed to monitor hydroturbine vibrations, only two systems—KM-Delta-8-CM and PTK KM-Delta—are currently applied to measure fastening bolt deformation. Furthermore, only one system, SKDS-SISH, was found to monitor the forces inducing this deformation. After analysis, it is evident that the described systems for monitoring the deformation of the fastening bolts do not guarantee the trustworthiness of the measuring sensors and there is a need for their improvement. The implementation of a self-checking function (including metrological features), the development of a digital twin of the sensor, and the application of technologies based on artificial intelligence could solve this problem.https://www.mdpi.com/1424-8220/25/8/2548Francis turbinevibrationdeformationfastening boltsmonitoring system |
| spellingShingle | Eddy Yujra Rivas Alexander Vyacheslavov Kirill V. Gogolinskiy Kseniia Sapozhnikova Roald Taymanov Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants Sensors Francis turbine vibration deformation fastening bolts monitoring system |
| title | Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants |
| title_full | Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants |
| title_fullStr | Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants |
| title_full_unstemmed | Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants |
| title_short | Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants |
| title_sort | deformation monitoring systems for hydroturbine head cover fastening bolts in hydroelectric power plants |
| topic | Francis turbine vibration deformation fastening bolts monitoring system |
| url | https://www.mdpi.com/1424-8220/25/8/2548 |
| work_keys_str_mv | AT eddyyujrarivas deformationmonitoringsystemsforhydroturbineheadcoverfasteningboltsinhydroelectricpowerplants AT alexandervyacheslavov deformationmonitoringsystemsforhydroturbineheadcoverfasteningboltsinhydroelectricpowerplants AT kirillvgogolinskiy deformationmonitoringsystemsforhydroturbineheadcoverfasteningboltsinhydroelectricpowerplants AT kseniiasapozhnikova deformationmonitoringsystemsforhydroturbineheadcoverfasteningboltsinhydroelectricpowerplants AT roaldtaymanov deformationmonitoringsystemsforhydroturbineheadcoverfasteningboltsinhydroelectricpowerplants |