A storage reservoir supplies water to a pressure turbine under a head of 20 m. When the turbine draws 0.5 m^3/s of water, the head loss in the 300 mm-diameter supply line amounts to 2.5 m. -Determine the pressure intensity at the entrance of the turbine -If a negative pressure of 30 kPa exists at the 600mm-diameter section of the draft tube 1.5m below the supply line (point 3), estimate the energy absorbed by the turbine in kilowatts neglecting all frictional losses between the entrance and exit of the turbine. -Assuming a turbine efficiency of 85%, find the power output of the turbine
A storage reservoir supplies water to a pressure turbine under a head of 20 m. When the turbine draws 0.5 m^3/s of water, the head loss in the 300 mm-diameter supply line amounts to 2.5 m. -Determine the pressure intensity at the entrance of the turbine -If a negative pressure of 30 kPa exists at the 600mm-diameter section of the draft tube 1.5m below the supply line (point 3), estimate the energy absorbed by the turbine in kilowatts neglecting all frictional losses between the entrance and exit of the turbine. -Assuming a turbine efficiency of 85%, find the power output of the turbine
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A storage reservoir supplies water to a pressure turbine under a head of 20 m. When the turbine draws 0.5 m^3/s of water, the head loss in the 300 mm-diameter supply line amounts to 2.5 m.
-Determine the pressure intensity at the entrance of the turbine
-If a negative pressure of 30 kPa exists at the 600mm-diameter section of the draft tube 1.5m below the supply line (point 3), estimate the energy absorbed by the turbine in kilowatts neglecting all frictional losses between the entrance and exit of the turbine.
-Assuming a turbine efficiency of 85%, find the power output of the turbine.
Transcribed Image Text:reservoir
20m
300mm-dia
1.5m
-600mm-dia
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