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Seal, Self-priming pump, Circulation pump, Multi-stage pump, Vortex pump
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| Jupia Brazil | ||||||||||||||||||||||||||||||||||||||
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| The Power Station Jupia is located at the Parana river in the state of Sao Paulo in Brazil approximately 600 km upstream of Itaipu. Jupia is operated by the Companhia Energética de Sao Paulo (CESP) just like the Ilha Solteira Power Station. In the years 1963 to 1969 VA TECH HYDRO as a consortium partner delivered all Kaplan turbines which were equipped with 5 blade runners. In total 14 turbines are installed, each with 110.8 MW power output. At that time it was one of the largest hydropower stations ever built. In a Kaplan runner blade the concentration of the stresses has its peak at the intersection between blade and blade disc. To reduce these stress peaks, so called undercuts are milled at these sections. The blades for Jupia were the first ones to be designed and manufactured in this way according to a global patent. Today these undercuts are a worldwide standard. Additionally these blades were one of the first ones with anti cavitation lips. These anti cavitation lips are used to protect the base material and to reduce cavitation at the hydraulic important surfaces. Therefore, it can be stated that the turbines were at that time not only within the largest of their type, they were also the first ones where the newest and most advanced technology of VA TECH HYDRO was employed. |
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