Matches in SemOpenAlex for { <https://semopenalex.org/work/W4306175544> ?p ?o ?g. }
Showing items 1 to 62 of
62
with 100 items per page.
- W4306175544 endingPage "012038" @default.
- W4306175544 startingPage "012038" @default.
- W4306175544 abstract "Abstract Hydropower is a major renewable clean energy and is widely used worldwide. The reversible pump-turbine unit of the pumped-storage power station is able to work in two main operating modes as required by the power grid: turbine-mode for power generation and pump-mode for power storage. In order to absorb unstable energies such as wind and solar energy and improve the quality of the electricity, reversible pump-turbines need to frequently change operating conditions, and experience more start-stops under different operating modes in a short period. The unstable flow during these transient processes will lead to high-level stresses on the structural components of the pump-turbine units. Therefore, it is of great engineering and academic significance to study the flow characteristics and structural characteristics of the unit during the transient processes. This paper has established a numerical calculation model for a prototype reversible pump-turbine unit, has carried out the CFD calculations of the pump-turbine fluid domains during the pump shutdown transient process, and has analysed the corresponding structural dynamic characteristics of the stationary components of the unit with the fluid-structure coupling method. The pressure variation trend of the spiral case outlet during pump shutdown has the same trend as that of the spiral case domain, and the guide vane flow domain. The maximum flow-induced deformation and stress of the stationary structures have a strong correlation with the axial thrust values of the head cover. The maximum deformation occurs at the inner edge of the head cover, and the maximum stress appears in the fillet of the stay vane leading edge. An increase in the number of shutdowns will result in a higher real risk of fatigue damage to the stay vanes. The conclusions obtained are of great value for safe operation, field condition monitoring, fault diagnosis, and predictive maintenance of the pump-turbine units." @default.
- W4306175544 created "2022-10-14" @default.
- W4306175544 creator A5000493320 @default.
- W4306175544 creator A5004270837 @default.
- W4306175544 creator A5005756491 @default.
- W4306175544 creator A5017132636 @default.
- W4306175544 creator A5020969841 @default.
- W4306175544 creator A5037073652 @default.
- W4306175544 creator A5051215909 @default.
- W4306175544 date "2022-09-01" @default.
- W4306175544 modified "2023-09-30" @default.
- W4306175544 title "Fluid-Structure Coupling Analysis of a Pump-turbine unit during the Pump Shutdown Transient Process" @default.
- W4306175544 cites W1996733818 @default.
- W4306175544 cites W2725617623 @default.
- W4306175544 doi "https://doi.org/10.1088/1755-1315/1079/1/012038" @default.
- W4306175544 hasPublicationYear "2022" @default.
- W4306175544 type Work @default.
- W4306175544 citedByCount "0" @default.
- W4306175544 crossrefType "journal-article" @default.
- W4306175544 hasAuthorship W4306175544A5000493320 @default.
- W4306175544 hasAuthorship W4306175544A5004270837 @default.
- W4306175544 hasAuthorship W4306175544A5005756491 @default.
- W4306175544 hasAuthorship W4306175544A5017132636 @default.
- W4306175544 hasAuthorship W4306175544A5020969841 @default.
- W4306175544 hasAuthorship W4306175544A5037073652 @default.
- W4306175544 hasAuthorship W4306175544A5051215909 @default.
- W4306175544 hasConcept C111919701 @default.
- W4306175544 hasConcept C121332964 @default.
- W4306175544 hasConcept C127413603 @default.
- W4306175544 hasConcept C2778449969 @default.
- W4306175544 hasConcept C2780799671 @default.
- W4306175544 hasConcept C41008148 @default.
- W4306175544 hasConcept C57879066 @default.
- W4306175544 hasConcept C78519656 @default.
- W4306175544 hasConceptScore W4306175544C111919701 @default.
- W4306175544 hasConceptScore W4306175544C121332964 @default.
- W4306175544 hasConceptScore W4306175544C127413603 @default.
- W4306175544 hasConceptScore W4306175544C2778449969 @default.
- W4306175544 hasConceptScore W4306175544C2780799671 @default.
- W4306175544 hasConceptScore W4306175544C41008148 @default.
- W4306175544 hasConceptScore W4306175544C57879066 @default.
- W4306175544 hasConceptScore W4306175544C78519656 @default.
- W4306175544 hasIssue "1" @default.
- W4306175544 hasLocation W43061755441 @default.
- W4306175544 hasOpenAccess W4306175544 @default.
- W4306175544 hasPrimaryLocation W43061755441 @default.
- W4306175544 hasRelatedWork W1976823226 @default.
- W4306175544 hasRelatedWork W2141497921 @default.
- W4306175544 hasRelatedWork W2317206593 @default.
- W4306175544 hasRelatedWork W2898106581 @default.
- W4306175544 hasRelatedWork W3007875152 @default.
- W4306175544 hasRelatedWork W3131835179 @default.
- W4306175544 hasRelatedWork W3214493308 @default.
- W4306175544 hasRelatedWork W339928445 @default.
- W4306175544 hasRelatedWork W2040014518 @default.
- W4306175544 hasRelatedWork W2254246455 @default.
- W4306175544 hasVolume "1079" @default.
- W4306175544 isParatext "false" @default.
- W4306175544 isRetracted "false" @default.
- W4306175544 workType "article" @default.