A Comparative Study of the Scale Effect on the S-Shaped Characteristics of a Pump-Turbine Unit

A Comparative Study of the Scale Effect on the S-Shaped Characteristics of a Pump-Turbine Unit

S-shaped characteristics in turbine mode are prone to instabilities in associated transient processes. A single value of the speed factor corresponds to multiple values of the discharge factor, having the possibility of changing the operating point among the turbine, turbine brake, and reverse pump...

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Bibliographic Details
Main Authors: Jun-Won Suh, Seung-Jun Kim, Hyeon-Mo Yang, Moo-Sung Kim, Won-Gu Joo, Jungwan Park, Jin-Hyuk Kim, Young-Seok Choi
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Energies
Subjects:
pump turbine
S-shaped characteristics
transient phenomena
scale effect
numerical analysis
experiment
Online Access:https://www.mdpi.com/1996-1073/14/3/525

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