Experimental analysis of the vibration on the draft tube of a Francis hydraulic turbine during operation at different power levels
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| Format: | Artículo científico |
| Langue: | en |
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Universidad de Antioquia
2010
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| _version_ | 1876456260059004928 |
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| author | Fernando Casanova García |
| author_facet | Fernando Casanova García |
| contents | Experimental analysis of the vibration on the draft tube of a Francis hydraulic turbine during operation at different power levels Fernando Casanova García Carlos Alberto Mantilla Viveros Ingeniería vortex vibrations Power plant dynamic stress analysis Severe vibrations are present on the draft tube of a 95 MW hydraulic turbine operating at partial load. Frequent failures on structural elements of the power plant are produced, due to the hydraulic instability inside the draft tube; mainly when the machine operates at partial load. Pressure inside the draft tube and stress on the external draft tube wall were measured at several power levels to identify the power where the conditions are critical for the structure. Also, measurements were conducted at partial load with air injection over the stay vanes and pressure relief on the spiral case. It was found that air injection effectively reduced vibrations while the pressure relief on the spiral case did not produce any useful effect. 2010 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43019328009 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.55 |
| format | Artículo científico |
| id | redalyc_43019328009 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Universidad de Antioquia |
| spellingShingle | Experimental analysis of the vibration on the draft tube of a Francis hydraulic turbine during operation at different power levels Fernando Casanova García Ingeniería vortex vibrations Power plant dynamic stress analysis Experimental analysis of the vibration on the draft tube of a Francis hydraulic turbine during operation at different power levels Fernando Casanova García Carlos Alberto Mantilla Viveros Ingeniería vortex vibrations Power plant dynamic stress analysis Severe vibrations are present on the draft tube of a 95 MW hydraulic turbine operating at partial load. Frequent failures on structural elements of the power plant are produced, due to the hydraulic instability inside the draft tube; mainly when the machine operates at partial load. Pressure inside the draft tube and stress on the external draft tube wall were measured at several power levels to identify the power where the conditions are critical for the structure. Also, measurements were conducted at partial load with air injection over the stay vanes and pressure relief on the spiral case. It was found that air injection effectively reduced vibrations while the pressure relief on the spiral case did not produce any useful effect. 2010 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43019328009 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.55 |
| title | Experimental analysis of the vibration on the draft tube of a Francis hydraulic turbine during operation at different power levels |
| topic | Ingeniería vortex vibrations Power plant dynamic stress analysis |
| url | https://www.redalyc.org/articulo.oa?id=43019328009 |