QUESTION 6 The nozzle of a 4-jet Pelton wheel turbine each have a diameter of 130 mm and the velocity of each water jet is 96,5 m/s. The available head at the nozzle is 520 m. The blade velocity is 46% of the jet velocity and has a turbine hydraulic efficiency of 85% (i.e. nozzles included). The friction across the buckets is 7% from entry to exit. Calculate: 6.1 The flow rate through the turbine. 6.2 The nozzle velocity coefficient. ( 6.3 The bucket outlet angle. 6.4 The hydraulic power generated by the turbine. 6.5 The hydraulic efficiency of the wheel (i.e. nozzles excluded)
QUESTION 6 The nozzle of a 4-jet Pelton wheel turbine each have a diameter of 130 mm and the velocity of each water jet is 96,5 m/s. The available head at the nozzle is 520 m. The blade velocity is 46% of the jet velocity and has a turbine hydraulic efficiency of 85% (i.e. nozzles included). The friction across the buckets is 7% from entry to exit. Calculate: 6.1 The flow rate through the turbine. 6.2 The nozzle velocity coefficient. ( 6.3 The bucket outlet angle. 6.4 The hydraulic power generated by the turbine. 6.5 The hydraulic efficiency of the wheel (i.e. nozzles excluded)
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Transcribed Image Text:QUESTION 6
The nozzle of a 4-jet Pelton wheel turbine each have a diameter of 130 mm and the velocity of
each water jet is 96,5 m/s. The available head at the nozzle is 520 m. The blade velocity is 46%
of the jet velocity and has a turbine hydraulic efficiency of 85% (i.e. nozzles included). The
friction across the buckets is 7% from entry to exit.
Calculate:
6.1 The flow rate through the turbine.
6.2
The nozzle velocity coefficient. (
6.3
The bucket outlet angle.
6.4
The hydraulic power generated by the turbine.
6.5
The hydraulic efficiency of the wheel (i.e. nozzles excluded)
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