Draft Tube In Hydro Power Plant. A Draft tube is a kind of tube that acts as an important part of the reaction turbine and also acts as an intermediate between the exit of the turbine and the entry of the tailrace The water is discharged to the tailrace through a gradually expanding tube called the Draft tube.
Simulation of pressure surge in a hydro power plant caused by an elbow draft tube free download The flow in an elbow draft tube under part load conditions is investigated By means of CFD the unsteady behavior of the vortex rope is analyzed The calculated pressure distributions at certain locations are compared with measurement.
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February 9 2020 February 11 2020 Electric 0 Comments Draft tube is provided in hydropower plant to Compensate for water hammer effect Increase acting head Strength pen stock structure None of these Correct answer 2 Increase acting head.
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OverviewEfficiencyDraft tube and cavitationTypes of draft tubeDraft Tube is a diverging tube fitted at the exit of runner of turbine and used to utilize the kinetic energy available with water at the exit of runner ‘ This draft tube at the end of the turbine increases the pressure of the exiting fluid at the expense of its velocity This means that the turbine can reduce pressure to a higher extent without fear of back flow from the tail race Text under.
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Draft Tube and Tail Race of Hydroelectric Power Plants Water that has passed through the runners moves next through a carefully designed vertical channel called draft tube Draft tube recovers the kinetic energy of water by decelerating it before it exits the tailrace thus improving the hydraulic efficiency of the turbine.
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What Is A Draft Tube?Why Do We Require Draft Tube in Reaction Turbines?Do Pelton (or Impulse) Turbines Needs Draft Tube?Types of Draft TubesA draft tube is a kind of tube which connects (or acts as an intermediately) between the water turbineexit and tail race Image source NPTEL Note Tail race is the water channel that carries away water from the turbine exit A draft tube has an increasing crosssectional area from the inlet to the out let (as shown in figure).