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<p>In this research work, a Zuppinger waterwheel was examined in a physical model. Tests were carried out at the Darmstadt University of Applied Sciences at different operating points. The operating points consisted of flow rate and speed at a stable underwater level. The resulting performance and efficiency curves were evaluated in terms of filling level and immersion. Both values play a decisive role in the design of Zuppinger waterwheels. To determine the filling level, the cell volumes were determined and the limit flow rates, which correspond to a filling level of 100%, were calculated. The findings were verified in the physical model using experiments. The investigations on immersion provide information on the water level difference between the last closed blade cell and tailwater, which promises high efficiency. This knowledge is helpful when designing Zuppinger waterwheels for a defined flow rate and known tailwater level.</p>

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Test eines Zuppinger-Wasserrades im hydraulischen Labor: Bewertung nach Füllgrad und Tauchung

  • 期刊论文

  • 发表日期：

    2026年1月6日

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  • Julius Maier,
  • Nicole Saenger,
  • Dirk M. Nuernbergk,
  • Patrick Ölke

摘要

In this research work, a Zuppinger waterwheel was examined in a physical model. Tests were carried out at the Darmstadt University of Applied Sciences at different operating points. The operating points consisted of flow rate and speed at a stable underwater level. The resulting performance and efficiency curves were evaluated in terms of filling level and immersion. Both values play a decisive role in the design of Zuppinger waterwheels. To determine the filling level, the cell volumes were determined and the limit flow rates, which correspond to a filling level of 100%, were calculated. The findings were verified in the physical model using experiments. The investigations on immersion provide information on the water level difference between the last closed blade cell and tailwater, which promises high efficiency. This knowledge is helpful when designing Zuppinger waterwheels for a defined flow rate and known tailwater level.