Fourneyron turbine

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Fourneyron turbine from 1834 in the Deutsches Museum in Munich
Schematic representation of a Fourneyron turbine. W ... circumferential bead, S ... blades of the diffuser

The Fourneyron turbine is the first functional water turbine .

The turbine was developed in 1826 as a result of a competition held by the French Society for Industrial Diligence, the condition of which was to develop a water wheel that could be driven at more than one point. The 24-year-old Frenchman Benoît Fourneyron won the award with the turbine named after him. In this case, the water flowed axially downwards, coming from above, into a diffuser made of curved blades, which firstly deflects the water radially outwards, secondly with a twist, and thirdly releases it into an external impeller . The oppositely curved blades of the impeller ideally reduce the swirl of the incoming water to zero - for high efficiency - and discharge the water radially outwards. As the turbine axis protrudes above the water level of the inlet, there is no need for a performance-sapping and sealing water pressure seal on the axis. The lower bearing of the axle takes place in the wet.

The first Fourneyron turbine was used in the St. Blasien factory from 1832 to 1864 . It delivered 40 HP with 2300 revolutions per minute and was "the first usable overpressure turbine (reaction turbine) that could be regulated with good efficiency " and was considered the first continental overpressure turbine. As a prototype, it served as a model for power generation at Niagara Falls .

source

  • Propylaea history of technology

Web links

Individual evidence

  1. Die Acht mit Herz (Badische Zeitung) No. 23, 1987.