Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation
Depending on a dynamical energy market dominated by the influence of volatile energies, the operators of hydro-power plants are forced to extend the operating range of their hydraulic machines to stay competitive. High flexibility towards low-load, a rising number of start-ups and fast response time...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-07-01
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| Series: | International Journal of Turbomachinery, Propulsion and Power |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-186X/4/3/21 |
| _version_ | 1828735785953656832 |
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| author | Julian Unterluggauer Eduard Doujak Christian Bauer |
| author_facet | Julian Unterluggauer Eduard Doujak Christian Bauer |
| author_sort | Julian Unterluggauer |
| collection | DOAJ |
| description | Depending on a dynamical energy market dominated by the influence of volatile energies, the operators of hydro-power plants are forced to extend the operating range of their hydraulic machines to stay competitive. High flexibility towards low-load, a rising number of start-ups and fast response times are required for better control of the electrical grid. The major downside of these operating regions is that pressure pulsations, which are induced by the means of flow phenomena, lead to higher fatigue damage regarding the runner. Therefore, site measurements in combination with numerical methods can be used to gain a deeper understanding of the runner lifetime. This paper presents a numerical approach to understand the critical operation zones and access fatigue damage, including steady state, unsteady and transient computational fluid dynamic (CFD) one-way coupled with a transient finite element method (FEM). |
| first_indexed | 2024-04-12T23:13:33Z |
| format | Article |
| id | doaj.art-12af62ef167243d286a68e632bba657a |
| institution | Directory Open Access Journal |
| issn | 2504-186X |
| language | English |
| last_indexed | 2024-04-12T23:13:33Z |
| publishDate | 2019-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Turbomachinery, Propulsion and Power |
| spelling | doaj.art-12af62ef167243d286a68e632bba657a2022-12-22T03:12:44ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2019-07-01432110.3390/ijtpp4030021ijtpp4030021Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load OperationJulian Unterluggauer0Eduard Doujak1Christian Bauer2Institute for Energy Systems and Thermodynamics/E302, TU Wien, Getreidemarkt 9/BA, 1060 Vienna, AustriaInstitute for Energy Systems and Thermodynamics/E302, TU Wien, Getreidemarkt 9/BA, 1060 Vienna, AustriaInstitute for Energy Systems and Thermodynamics/E302, TU Wien, Getreidemarkt 9/BA, 1060 Vienna, AustriaDepending on a dynamical energy market dominated by the influence of volatile energies, the operators of hydro-power plants are forced to extend the operating range of their hydraulic machines to stay competitive. High flexibility towards low-load, a rising number of start-ups and fast response times are required for better control of the electrical grid. The major downside of these operating regions is that pressure pulsations, which are induced by the means of flow phenomena, lead to higher fatigue damage regarding the runner. Therefore, site measurements in combination with numerical methods can be used to gain a deeper understanding of the runner lifetime. This paper presents a numerical approach to understand the critical operation zones and access fatigue damage, including steady state, unsteady and transient computational fluid dynamic (CFD) one-way coupled with a transient finite element method (FEM).https://www.mdpi.com/2504-186X/4/3/21Francis turbinefatigue analysisnumerical simulation |
| spellingShingle | Julian Unterluggauer Eduard Doujak Christian Bauer Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation International Journal of Turbomachinery, Propulsion and Power Francis turbine fatigue analysis numerical simulation |
| title | Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation |
| title_full | Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation |
| title_fullStr | Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation |
| title_full_unstemmed | Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation |
| title_short | Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation |
| title_sort | numerical fatigue analysis of a prototype francis turbine runner in low load operation |
| topic | Francis turbine fatigue analysis numerical simulation |
| url | https://www.mdpi.com/2504-186X/4/3/21 |
| work_keys_str_mv | AT julianunterluggauer numericalfatigueanalysisofaprototypefrancisturbinerunnerinlowloadoperation AT eduarddoujak numericalfatigueanalysisofaprototypefrancisturbinerunnerinlowloadoperation AT christianbauer numericalfatigueanalysisofaprototypefrancisturbinerunnerinlowloadoperation |