Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 2 (Q.No. 27)
27.
If the Francis turbine is run below 50 percent head for a long period, it will not only lose its efficiency but also the cavitation danger will become more serious.
Discussion:
2 comments Page 1 of 1.
Yash said:
7 years ago
As the head decreases, the amount of energy available to be converted to pressure head decreases. So, there is a higher possibility that the pressure head at the inlet of draft tube is less than the vapour pressure head.
Sambhu jana said:
8 years ago
Please give me the explanation.
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