Integrity and life estimation of turbine runner cover in a hydro power plant
Apstrakt
This paper presents integrity and life estimation of turbine runner cover in a vertical pipe turbines, Kaplan 200 MW nominal output power, produced in Russia, and built in six hydro-generation units of hydroelectric power plant „Đerdap 1” in Serbia. Fatigue and corrosion-fatigue interaction have been taken into account using experimentally obtained material properties, as well as analytical and numerical calculations of stress state, to estimate appropriate safety factors. Fatigue crack growth rate, da/dN, was also calculated, indicated that internal defects of circular or elliptical shape, found out by ultrasonic testing, do not affect reliable operation of runner cover.
Ključne reči:
Runner cover / Hydro power plant / Fatigue / CorrosionIzvor:
Frattura ed Integrita Strutturale, 2016, 10, 36, 63-68Izdavač:
- Gruppo Italiano Frattura
Institucija/grupa
Institut za ispitivanje materijalaTY - JOUR AU - Sedmak, Aleksandar AU - Bošnjak, Srđan AU - Arsić, Miodrag AU - Sedmak, S.A. AU - Savić, Zoran PY - 2016 UR - http://rims.institutims.rs/handle/123456789/304 AB - This paper presents integrity and life estimation of turbine runner cover in a vertical pipe turbines, Kaplan 200 MW nominal output power, produced in Russia, and built in six hydro-generation units of hydroelectric power plant „Đerdap 1” in Serbia. Fatigue and corrosion-fatigue interaction have been taken into account using experimentally obtained material properties, as well as analytical and numerical calculations of stress state, to estimate appropriate safety factors. Fatigue crack growth rate, da/dN, was also calculated, indicated that internal defects of circular or elliptical shape, found out by ultrasonic testing, do not affect reliable operation of runner cover. PB - Gruppo Italiano Frattura T2 - Frattura ed Integrita Strutturale T1 - Integrity and life estimation of turbine runner cover in a hydro power plant EP - 68 IS - 36 SP - 63 VL - 10 DO - 10.3221/IGF-ESIS.36.07 ER -
@article{ author = "Sedmak, Aleksandar and Bošnjak, Srđan and Arsić, Miodrag and Sedmak, S.A. and Savić, Zoran", year = "2016", abstract = "This paper presents integrity and life estimation of turbine runner cover in a vertical pipe turbines, Kaplan 200 MW nominal output power, produced in Russia, and built in six hydro-generation units of hydroelectric power plant „Đerdap 1” in Serbia. Fatigue and corrosion-fatigue interaction have been taken into account using experimentally obtained material properties, as well as analytical and numerical calculations of stress state, to estimate appropriate safety factors. Fatigue crack growth rate, da/dN, was also calculated, indicated that internal defects of circular or elliptical shape, found out by ultrasonic testing, do not affect reliable operation of runner cover.", publisher = "Gruppo Italiano Frattura", journal = "Frattura ed Integrita Strutturale", title = "Integrity and life estimation of turbine runner cover in a hydro power plant", pages = "68-63", number = "36", volume = "10", doi = "10.3221/IGF-ESIS.36.07" }
Sedmak, A., Bošnjak, S., Arsić, M., Sedmak, S.A.,& Savić, Z.. (2016). Integrity and life estimation of turbine runner cover in a hydro power plant. in Frattura ed Integrita Strutturale Gruppo Italiano Frattura., 10(36), 63-68. https://doi.org/10.3221/IGF-ESIS.36.07
Sedmak A, Bošnjak S, Arsić M, Sedmak S, Savić Z. Integrity and life estimation of turbine runner cover in a hydro power plant. in Frattura ed Integrita Strutturale. 2016;10(36):63-68. doi:10.3221/IGF-ESIS.36.07 .
Sedmak, Aleksandar, Bošnjak, Srđan, Arsić, Miodrag, Sedmak, S.A., Savić, Zoran, "Integrity and life estimation of turbine runner cover in a hydro power plant" in Frattura ed Integrita Strutturale, 10, no. 36 (2016):63-68, https://doi.org/10.3221/IGF-ESIS.36.07 . .