Page 1 of 1
(a) A draft tube is mostly installed at the exit of reaction turbine (Francis, Kaplan, etc.). Explain why this is done.
Posted: Sun Jul 10, 2022 11:42 am
by answerhappygod
- A A Draft Tube Is Mostly Installed At The Exit Of Reaction Turbine Francis Kaplan Etc Explain Why This Is Done 1 (34.35 KiB) Viewed 43 times
(a) A draft tube is mostly installed at the exit of reaction turbine (Francis, Kaplan, etc.). Explain why this is done. (b) Explain how cavitation damages hydraulic turbines. How is this detected whiles the turbine runs? (c) Discuss ways to improve the cavitation performance of a pump using the equation of Net Positive Suction Head NPSH. Give any two ways of increasing the available NPSH. (d) Define wheel efficiency of an impulse turbine. Use a graph to explain the gap between the theoretical and actual wheel efficiencies.