Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines
The design of radial blade cascades, with the intent to become turbine guide vanes, lies in the basis of satisfying turbine runner needs for a particular turbine design point of interest. For conventional turbine operation, the hydrodynamic parameters in the pre-runner space can be relatively easily...
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Savez energetičara
2021-09-01
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| Series: | Energija, Ekonomija, Ekologija |
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| Online Access: | https://doi.ub.kg.ac.rs/2021/10-46793-eee21-3-31s/ |
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| author | Filip Stojkovski Zoran Markov |
| author_facet | Filip Stojkovski Zoran Markov |
| author_sort | Filip Stojkovski |
| collection | DOAJ |
| description | The design of radial blade cascades, with the intent to become turbine guide vanes, lies in the basis of satisfying turbine runner needs for a particular turbine design point of interest. For conventional turbine operation, the hydrodynamic parameters in the pre-runner space can be relatively easily estimated. For variable speed turbine operation at the constant head, these parameters change in a way that cannot be easily predicted using conventional techniques. In this paper, the guide vanes, as crucial turbine sub-system which needs to perform efficient runner flow feeding for these operating ranges, are numerically tested in various geometrical shapes and configurations, to observe the cascades behaviour, in a way of estimating which cascade configuration satisfies certain hydrodynamic and efficiency considerations of the operating points of interest. The criteria which the guide vanes need to meet are based on hydrodynamic parameters and expansion of the turbine operating range. |
| format | Article |
| id | doaj-art-114ad33da4d74949a4585c39e13280f2 |
| institution | Kabale University |
| issn | 0354-8651 2812-7528 |
| language | English |
| publishDate | 2021-09-01 |
| publisher | Savez energetičara |
| record_format | Article |
| series | Energija, Ekonomija, Ekologija |
| spelling | doaj-art-114ad33da4d74949a4585c39e13280f22025-01-07T15:07:50ZengSavez energetičaraEnergija, Ekonomija, Ekologija0354-86512812-75282021-09-01233313610.46793/EEE21-3.31SInfluence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis TurbinesFilip Stojkovski0https://orcid.org/0000-0001-8876-7158Zoran Markov1https://orcid.org/0000-0001-7302-8280Saints Cyril and Methodius University in Skopje Faculty of Mechanical EngineeringSaints Cyril and Methodius University in Skopje Faculty of Mechanical EngineeringThe design of radial blade cascades, with the intent to become turbine guide vanes, lies in the basis of satisfying turbine runner needs for a particular turbine design point of interest. For conventional turbine operation, the hydrodynamic parameters in the pre-runner space can be relatively easily estimated. For variable speed turbine operation at the constant head, these parameters change in a way that cannot be easily predicted using conventional techniques. In this paper, the guide vanes, as crucial turbine sub-system which needs to perform efficient runner flow feeding for these operating ranges, are numerically tested in various geometrical shapes and configurations, to observe the cascades behaviour, in a way of estimating which cascade configuration satisfies certain hydrodynamic and efficiency considerations of the operating points of interest. The criteria which the guide vanes need to meet are based on hydrodynamic parameters and expansion of the turbine operating range.https://doi.ub.kg.ac.rs/2021/10-46793-eee21-3-31s/guide vanescfdfrancis turbinesvariable speed operation (vso) |
| spellingShingle | Filip Stojkovski Zoran Markov Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines Energija, Ekonomija, Ekologija guide vanes cfd francis turbines variable speed operation (vso) |
| title | Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines |
| title_full | Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines |
| title_fullStr | Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines |
| title_full_unstemmed | Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines |
| title_short | Influence of Particular Design Parameters of Radial Guide Vane Cascades on Their Hydraulic Performance at Variable Speed Operated Francis Turbines |
| title_sort | influence of particular design parameters of radial guide vane cascades on their hydraulic performance at variable speed operated francis turbines |
| topic | guide vanes cfd francis turbines variable speed operation (vso) |
| url | https://doi.ub.kg.ac.rs/2021/10-46793-eee21-3-31s/ |
| work_keys_str_mv | AT filipstojkovski influenceofparticulardesignparametersofradialguidevanecascadesontheirhydraulicperformanceatvariablespeedoperatedfrancisturbines AT zoranmarkov influenceofparticulardesignparametersofradialguidevanecascadesontheirhydraulicperformanceatvariablespeedoperatedfrancisturbines |