Abstract
The IEC model acceptance test code stipulates that there is no scale effect in Pelton turbines[1]. One of the primary reasons why the scale effect in Pelton turbines is ignored, so far, is that the complicated unsteady free water-sheet flow on Pelton buckets prevents to numerically analyze the loss mechanism. Another reason is that the positive scale effect in the closed conduit flow from the turbine inlet to the nozzle outlet tends to compensate for the negative scale effect in free water-sheet flow on the buckets.
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References
IEC (1994), 411111CDV.
Grein,H. et al. (1986), Efficiency scale effects in Pelton turbines, IAHR-Montreal, 76.
Nonoshita T.,Matsumoto Y., HanedaY. and Kubota T. (1993), Behavior of the Jet from a Pelton Turbine Nozzle, Proc. 4th Asian Int. Conf. Turbo Machinery, Suzhou, 499–503.
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© 1996 Springer Science+Business Media Dordrecht
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Nakanishi, Y., Kubota, T. (1996). Scale Effect of Jet Interference in Multinozzle Pelton Turbines. In: Cabrera, E., Espert, V., MartÃnez, F. (eds) Hydraulic Machinery and Cavitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9385-9_33
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DOI: https://doi.org/10.1007/978-94-010-9385-9_33
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