Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’
Abstract
Vertical Kaplan turbines, manufactured in Russia and with nominal power of 200 MW, have been installed in 6 hydroelectric generating units at ’Djerdap 1’. During the refurbishment of hydroelectric generating sets A4, A5 and A6, non-destructive and destructive tests were carried out on parent material and weld metal in order to complete the state analysis and assessment of damage level and causes of damage occurrence at vital structures and components, which showed that the selection of suitable material has a crucial role regarding the safe operation of hydroelectric power plants. This paper contains comparative results of mechanical tests performed in order to obtain mechanical properties of materials used for the fabrication of the upper rings of guide vane apparatus installed in 1973 and made of steel St 3 (GOST 977-88) and those recently made through the use of steel S 235 (EN 10025-2), as well as for turbine covers, made of steels S 355 NL (EN 10025-2) and S 355 NL + Z25 + N (EN 1...0025-3).
Keywords:
Refurbishment / turbine equipment / hydromechanical equipment / steel selectionSource:
Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society, 2015, 558-564Publisher:
- Faculty of Mechanical Engineering, University of Belgrade
Funding / projects:
- Sustainability and improvement of mechanical systems in energetic, material handling and conveying by using forensic engineering, environmental and robust design Одрживост и унапређење машинских система у енергетици и транспорту применом форензичког инжењерства, еко и робуст дизајна Održivost i unapređenje mašinskih sistema u energetici i transportu primenom forenzičkog inženjerstva, eko i robust dizajna (RS-MESTD-Technological Development (TD or TR)-35006)
- Development of new revitalization methodologies for hydro power plant turbine and hydro-mechanical equipment in relation to causes of material degradation (RS-MESTD-Technological Development (TD or TR)-35002)
Collections
Institution/Community
Mašinski fakultetTY - CONF AU - Arsić, Miodrag AU - Sedmak, Aleksandar AU - Bošnjak, Srđan AU - Mladenović, M. AU - Savić, Zoran PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5250 AB - Vertical Kaplan turbines, manufactured in Russia and with nominal power of 200 MW, have been installed in 6 hydroelectric generating units at ’Djerdap 1’. During the refurbishment of hydroelectric generating sets A4, A5 and A6, non-destructive and destructive tests were carried out on parent material and weld metal in order to complete the state analysis and assessment of damage level and causes of damage occurrence at vital structures and components, which showed that the selection of suitable material has a crucial role regarding the safe operation of hydroelectric power plants. This paper contains comparative results of mechanical tests performed in order to obtain mechanical properties of materials used for the fabrication of the upper rings of guide vane apparatus installed in 1973 and made of steel St 3 (GOST 977-88) and those recently made through the use of steel S 235 (EN 10025-2), as well as for turbine covers, made of steels S 355 NL (EN 10025-2) and S 355 NL + Z25 + N (EN 10025-3). PB - Faculty of Mechanical Engineering, University of Belgrade C3 - Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society T1 - Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’ EP - 564 SP - 558 UR - https://hdl.handle.net/21.15107/rcub_machinery_5250 ER -
@conference{ author = "Arsić, Miodrag and Sedmak, Aleksandar and Bošnjak, Srđan and Mladenović, M. and Savić, Zoran", year = "2015", abstract = "Vertical Kaplan turbines, manufactured in Russia and with nominal power of 200 MW, have been installed in 6 hydroelectric generating units at ’Djerdap 1’. During the refurbishment of hydroelectric generating sets A4, A5 and A6, non-destructive and destructive tests were carried out on parent material and weld metal in order to complete the state analysis and assessment of damage level and causes of damage occurrence at vital structures and components, which showed that the selection of suitable material has a crucial role regarding the safe operation of hydroelectric power plants. This paper contains comparative results of mechanical tests performed in order to obtain mechanical properties of materials used for the fabrication of the upper rings of guide vane apparatus installed in 1973 and made of steel St 3 (GOST 977-88) and those recently made through the use of steel S 235 (EN 10025-2), as well as for turbine covers, made of steels S 355 NL (EN 10025-2) and S 355 NL + Z25 + N (EN 10025-3).", publisher = "Faculty of Mechanical Engineering, University of Belgrade", journal = "Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society", title = "Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’", pages = "564-558", url = "https://hdl.handle.net/21.15107/rcub_machinery_5250" }
Arsić, M., Sedmak, A., Bošnjak, S., Mladenović, M.,& Savić, Z.. (2015). Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’. in Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society Faculty of Mechanical Engineering, University of Belgrade., 558-564. https://hdl.handle.net/21.15107/rcub_machinery_5250
Arsić M, Sedmak A, Bošnjak S, Mladenović M, Savić Z. Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’. in Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society. 2015;:558-564. https://hdl.handle.net/21.15107/rcub_machinery_5250 .
Arsić, Miodrag, Sedmak, Aleksandar, Bošnjak, Srđan, Mladenović, M., Savić, Zoran, "Selection of steels for vital structures and turbine components of the hydro power plant ’Djerdap 1’" in Proceedings of TEAM 2015, 7th International Scientific and Expert Conference of the International TEAM Society (2015):558-564, https://hdl.handle.net/21.15107/rcub_machinery_5250 .