(Solution)-MECH CE003A A draft tube leading from the discharge side of a turbine

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A draft tube leading from the discharge side of a turbine to the submerged discharge in the tailrace consists of pipe (? = 0.025) of constant diameter 0.8 m and length 10.0 m. The flow rate is 9.2 m3/s. If this draft tube was  to be replaced by a diverging tube 12.0 m long whose diameter increase linearly from D0=0.8 m to D1=2.5 mover the 12.0 m length and an identical surface roughness as the precedent draft tube, how much additionalhead would be developed by the replacement draft tube? Both draft tube will be considered straight withoutbend.

 

Solution ID:10086485 | Question answered on 16-Oct-2016

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