Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept
The operation of hydrokinetic turbines under blockage conditions causes situations where the classical power coefficient does not adequately explain their energy extraction, often exceeding Betz’s limit, as it is referred only to the kinetic energy of the water flow in open field or without boundari...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-04-01
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| Series: | International Journal of Electrical Power & Energy Systems |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142061525000663 |
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| author | Manuel Rico-Secades Antonio Javier Calleja-Rodríguez Aitor Fernández-Jiménez Eduardo Álvarez-Álvarez Fher Said Macedo-Garcia Jaime Arau-Roffiel |
| author_facet | Manuel Rico-Secades Antonio Javier Calleja-Rodríguez Aitor Fernández-Jiménez Eduardo Álvarez-Álvarez Fher Said Macedo-Garcia Jaime Arau-Roffiel |
| author_sort | Manuel Rico-Secades |
| collection | DOAJ |
| description | The operation of hydrokinetic turbines under blockage conditions causes situations where the classical power coefficient does not adequately explain their energy extraction, often exceeding Betz’s limit, as it is referred only to the kinetic energy of the water flow in open field or without boundaries. The research presented defines the extended power coefficient as the fraction of the energy available, including kinetic and potential energy, obtained by the turbine in a rectangular water channel. The physical limits of the energy extraction are also determined. Even, a methodology has been developed to dynamically find the values of the extended power coefficient according to the blockage produced in the channel.Moreover, and based on this extended coefficient, a hydrokinetic turbine simulation model is presented to be applied in cases of flow blockage instead of the actual models of the electrical simulators based in the classical coefficient. The new simulation model has been validated through experimental tests with a micro-hydrokinetic turbine operating in a low-speed hydrodynamic tunnel. The design has been implemented in the LTSpice tool and tested allowing to obtain turbine operation data such as power produced, torque or rotational speed. |
| format | Article |
| id | doaj-art-ee07bf1ae5454f80a9c88ab0e4dd9522 |
| institution | Kabale University |
| issn | 0142-0615 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Electrical Power & Energy Systems |
| spelling | doaj-art-ee07bf1ae5454f80a9c88ab0e4dd95222025-02-09T04:59:35ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-04-01165110515Design of a new hydrokinetic turbine simulation model based on the extended power coefficient conceptManuel Rico-Secades0Antonio Javier Calleja-Rodríguez1Aitor Fernández-Jiménez2Eduardo Álvarez-Álvarez3Fher Said Macedo-Garcia4Jaime Arau-Roffiel5Universidad de Oviedo, Grupo de Electrónica de Potencia, Campus de Gijón edificio 3 planta 2 33204 Gijón, Asturias, Spain; Corresponding author.Universidad de Oviedo, Grupo de Electrónica de Potencia, Campus de Gijón edificio 3 planta 2 33204 Gijón, Asturias, SpainUniversidad de Oviedo. Centro Universitario de Investigación y Desarrollo del Agua (CUIDA), Campus de Mieres 33600 Mieres, Asturias, SpainUniversidad de Oviedo. Centro Universitario de Investigación y Desarrollo del Agua (CUIDA), Campus de Mieres 33600 Mieres, Asturias, SpainTecnológico Nacional de México, CENIDET, C.P. 62490 Cuernavaca, Morelos, MexicoTecnológico Nacional de México, CENIDET, C.P. 62490 Cuernavaca, Morelos, MexicoThe operation of hydrokinetic turbines under blockage conditions causes situations where the classical power coefficient does not adequately explain their energy extraction, often exceeding Betz’s limit, as it is referred only to the kinetic energy of the water flow in open field or without boundaries. The research presented defines the extended power coefficient as the fraction of the energy available, including kinetic and potential energy, obtained by the turbine in a rectangular water channel. The physical limits of the energy extraction are also determined. Even, a methodology has been developed to dynamically find the values of the extended power coefficient according to the blockage produced in the channel.Moreover, and based on this extended coefficient, a hydrokinetic turbine simulation model is presented to be applied in cases of flow blockage instead of the actual models of the electrical simulators based in the classical coefficient. The new simulation model has been validated through experimental tests with a micro-hydrokinetic turbine operating in a low-speed hydrodynamic tunnel. The design has been implemented in the LTSpice tool and tested allowing to obtain turbine operation data such as power produced, torque or rotational speed.http://www.sciencedirect.com/science/article/pii/S0142061525000663Water channel limitsLTSpice modelExtended power coefficientBlocking factor |
| spellingShingle | Manuel Rico-Secades Antonio Javier Calleja-Rodríguez Aitor Fernández-Jiménez Eduardo Álvarez-Álvarez Fher Said Macedo-Garcia Jaime Arau-Roffiel Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept International Journal of Electrical Power & Energy Systems Water channel limits LTSpice model Extended power coefficient Blocking factor |
| title | Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| title_full | Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| title_fullStr | Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| title_full_unstemmed | Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| title_short | Design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| title_sort | design of a new hydrokinetic turbine simulation model based on the extended power coefficient concept |
| topic | Water channel limits LTSpice model Extended power coefficient Blocking factor |
| url | http://www.sciencedirect.com/science/article/pii/S0142061525000663 |
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