A Kaplan turbine develops 1480 kW under a head of 7 m. The turbine is…
Previous year question for Fluid Machinery.
Question
A Kaplan turbine develops 1480 kW under a head of 7 m. The turbine is set 2.5 m above the tailrace level. A vacuum gauge inserted at the turbine outlet records a suction head of 3.1 m. If the hydraulic efficiency is 85%, what would be the efficiency of draft tube having inlet diameter of 3 m? What would be the reading of suction gauge if power developed in reduced to half (740 kW), the head and speed remaining constant.
- Year: 2022
- Subject: Fluid Machinery