Numerical and experimental analysis of hydraulic and mechanical phenomena that occur in centrifugal and doble suction pump working as a turbine for micro generation
A methodology was proposed to know the behavior of a double suction or split casing centrifugal pump working as a turbine. To validate this methodology, an experimental setup was carried out that includes sensors of hydraulic variables, mechanical variables, and dynamic sensors. With these methodolo...
- Autores:
-
Tobon Espinosa, Daniel Felipe
- Tipo de recurso:
- Doctoral thesis
- Fecha de publicación:
- 2025
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/48002
- Acceso en línea:
- https://hdl.handle.net/10495/48002
- Palabra clave:
- Monitoring
Renewable energy sources
Recursos energéticos renovables
Computational fluid dynamics
Turbina
Turbines
Pump as a Turbine (PAT)
Dynamic Analysis
http://id.loc.gov/authorities/subjects/sh99005651
http://id.loc.gov/authorities/subjects/sh85112837
http://id.loc.gov/authorities/subjects/sh2007008173
http://vocabularies.unesco.org/thesaurus/concept13604
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- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-sa/4.0/
| Summary: | A methodology was proposed to know the behavior of a double suction or split casing centrifugal pump working as a turbine. To validate this methodology, an experimental setup was carried out that includes sensors of hydraulic variables, mechanical variables, and dynamic sensors. With these methodologies, it was possible to find the operating curve in turbine mode, both for power and efficiency, thus finding the areas of maximum efficiency. These maximum efficiency zones are large and stable for various rotation speeds, heights, and flows, which implies larger operating areas. Thanks to the installed sensors and the numerical models analyzed, two instabilities of interest were identified, the vortex rope and the rotating stall, for which an area was defined where they occur and it is recommended not to operate the machine in these regions. It should be noted that they also found cavitation areas. With a height of 17 meters and a flow rate of 16 l/s, a mechanical power of 2 kW could be generated with an efficiency of 60 %. |
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