A Pelton wheel is supplied with 12 kg/s of water at 20 m/s. The buckets rotate on a mean diameter of 250 mm at 800 rev/min. The deflection angle is 165o and friction is negligible. Determine the diagram power. The output torque of the turbine is 26.5 Nm. The pressure drop over the nozzles is 2.45 bar gauge. Assume the water density is 1000 kg/m3 . Calculate: 1. Mechanical efficiency. 2. Hydraulic efficiency 3. Overall efficiency
A Pelton wheel is supplied with 12 kg/s of water at 20 m/s. The buckets rotate on a mean diameter of 250 mm at 800 rev/min. The deflection angle is 165o and friction is negligible. Determine the diagram power. The output torque of the turbine is 26.5 Nm. The pressure drop over the nozzles is 2.45 bar gauge. Assume the water density is 1000 kg/m3 . Calculate: 1. Mechanical efficiency. 2. Hydraulic efficiency 3. Overall efficiency
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A Pelton wheel is supplied with 12 kg/s of water at 20 m/s. The buckets rotate on a
mean diameter of 250 mm at 800 rev/min.
mean diameter of 250 mm at 800 rev/min.
The deflection angle is 165o and friction is negligible. Determine the diagram
power.
The output torque of the turbine is 26.5 Nm.
The pressure drop over the nozzles is 2.45 bar gauge. Assume the water density
is 1000 kg/m3 . Calculate:
1.Mechanical efficiency.
2. Hydraulic efficiency
3. Overall efficiency
power.
The output torque of the turbine is 26.5 Nm.
The pressure drop over the nozzles is 2.45 bar gauge. Assume the water density
is 1000 kg/m3 . Calculate:
1.
2. Hydraulic efficiency
3. Overall efficiency
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