The Jonval turbine is a water turbine design invented in France in 1837 and introduced to the United States around 1850 and were widely used. The Jonval turbine is a "mixed-flow" turbine design. Mixed-flow designs were well suited for the low-head applications common in the eastern United States. The smaller size, higher speed, higher power, lower cost, and ability to operate efficiently with variable water levels caused these and other types of hydraulic turbines to replace the vertical waterwheel as the primary source of power in American industries.
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| - Jonval-Turbine (de)
- Turbina Jonval (es)
- Turbine Jonval (fr)
- Jonval turbine (en)
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| - Die Jonval-Turbine, auch Henschel-Jonval-Turbine, ist eine im Jahr 1837 von dem deutschen Ingenieur Carl Anton Henschel entwickelte und 1843 in Frankreich vom Ingenieur Nicolas J. Jonval patentierte Wasserturbine. (de)
- La turbina Jonval, inventada en Francia en 1843, es un tipo de turbina hidráulica en la que el agua desciende a través de ranuras curvas fijas que dirigen el flujo a un rotor de álabes curvados e inclinados. Debe su nombre a su inventor, . Esta turbina incorporó ideas de ingenieros y matemáticos europeos, incluyendo el uso de álabes curvados. Curiosamente, tenía el "inconveniente" de que no permitía ver el rotor en movimiento, un problema relativo en aquella época. (es)
- La turbine Jonval est une des configurations de turbine hydraulique ; elle est principalement utilisée en Europe et n'est pas présente en Amérique. Tout dépend du spectre d'action de la turbine, c'est le débit du cours d'eau évalué et quelques autres paramètres qui déterminent quel type de turbine est utilisable pour un projet d'hydroélectricité. (fr)
- The Jonval turbine is a water turbine design invented in France in 1837 and introduced to the United States around 1850 and were widely used. The Jonval turbine is a "mixed-flow" turbine design. Mixed-flow designs were well suited for the low-head applications common in the eastern United States. The smaller size, higher speed, higher power, lower cost, and ability to operate efficiently with variable water levels caused these and other types of hydraulic turbines to replace the vertical waterwheel as the primary source of power in American industries. (en)
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| - Die Jonval-Turbine, auch Henschel-Jonval-Turbine, ist eine im Jahr 1837 von dem deutschen Ingenieur Carl Anton Henschel entwickelte und 1843 in Frankreich vom Ingenieur Nicolas J. Jonval patentierte Wasserturbine. (de)
- La turbina Jonval, inventada en Francia en 1843, es un tipo de turbina hidráulica en la que el agua desciende a través de ranuras curvas fijas que dirigen el flujo a un rotor de álabes curvados e inclinados. Debe su nombre a su inventor, . Esta turbina incorporó ideas de ingenieros y matemáticos europeos, incluyendo el uso de álabes curvados. Curiosamente, tenía el "inconveniente" de que no permitía ver el rotor en movimiento, un problema relativo en aquella época. (es)
- The Jonval turbine is a water turbine design invented in France in 1837 and introduced to the United States around 1850 and were widely used. The Jonval turbine is a "mixed-flow" turbine design. Mixed-flow designs were well suited for the low-head applications common in the eastern United States. The smaller size, higher speed, higher power, lower cost, and ability to operate efficiently with variable water levels caused these and other types of hydraulic turbines to replace the vertical waterwheel as the primary source of power in American industries. The Jonval turbine is a horizontal waterwheel. The water descends through fixed curved guide vanes which direct the flow sideways onto curved vanes on the runner. It is named after , who invented it. The Jonval incorporated ideas from European mathematicians and engineers, including the use of curved blades. This new turbine failed to satisfy the public interest in seeing the water wheels in action, which was likely accepted as a minor drawback at that time. This type is efficient at full gate, but at partial gate some Francis turbine designs are more efficient. The usual orientation of the wheel was horizontal and the first devices were even alternatively named as "horizontal water wheels". However, some sources mention turbines with both vertical and horizontal shafts. N.F. Burnham, an American turbine manufacturer, patented numerous improved designs in the second half of 19th century. His turbines had greater efficiency than the Jonval, especially at partial gate, and fewer maintenance problems. (en)
- La turbine Jonval est une des configurations de turbine hydraulique ; elle est principalement utilisée en Europe et n'est pas présente en Amérique. Tout dépend du spectre d'action de la turbine, c'est le débit du cours d'eau évalué et quelques autres paramètres qui déterminent quel type de turbine est utilisable pour un projet d'hydroélectricité. (fr)
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