Detection and analysis of part load and full load instabilities in a real Francis turbine prototype
| Autor: | Carme Valero, David Valentin, Eduard Egusquiza, Alexandre Presas |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids, Universitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
History
Engineering Energies [Àrees temàtiques de la UPC] Energies::Energia hidràulica [Àrees temàtiques de la UPC] Turbines 01 natural sciences 7. Clean energy 010305 fluids & plasmas Education law.invention 010309 optics Enginyeria mecànica [Àrees temàtiques de la UPC] Control theory law 0103 physical sciences Enginyeria mecànica::Mecànica [Àrees temàtiques de la UPC] Motors hidràulics Point (geometry) Enginyeria mecànica::Motors::Motors hidràulics [Àrees temàtiques de la UPC] Turbines hidràuliques Hydraulic machinery Simulation Energies::Energia hidràulica::Centrals hidràuliques [Àrees temàtiques de la UPC] Hydraulic turbines business.industry Francis turbine Hydraulic motors Instantaneous energy Grid Computer Science Applications Power (physics) Hydroelectric power-plants business Scale model Centrals hidroelèctriques |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | Francis turbines operate in many cases out of its best effici ency point, in order to regulate their output power according to the instantaneous ener gy demand of the grid. Therefore, it is of paramount importance to analyse and determine the unst able operating points for these kind of units. In the framework of the HYPERBOLE project (FP7-E NERGY-2013-1; Project number 608532) a large Francis unit was investigated numericall y, experimentally in a reduced scale model and also experimen tally and numerically in the real prototype. This paper shows the unstable operating points identified during the experimental te sts on the real Francis unit and the analysis of the main characteristics of these instabilities. Fi nally, it is shown that similar phenomena have been identified on previous research in the LMH (Laboratory for Hydraulic Machines, Lausanne) with t he reduced scale model. |
| Databáze: | OpenAIRE |
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