9. Work & Energy
Power
12PRACTICE PROBLEM
A prototype in an engineering school demonstrating a new design of water turbines uses water from a tank located 15.0 m above the turbine. Take the turbine design to be 72% efficient in transforming the potential energy of water to the kinetic energy of the shaft. Determine the water flow rate (in kg/s) required to supply the turbine shaft with energy at a rate of 20 MW. This is a realistic value during electricity generation.
A prototype in an engineering school demonstrating a new design of water turbines uses water from a tank located 15.0 m above the turbine. Take the turbine design to be 72% efficient in transforming the potential energy of water to the kinetic energy of the shaft. Determine the water flow rate (in kg/s) required to supply the turbine shaft with energy at a rate of 20 MW. This is a realistic value during electricity generation.