Fluid Mechanics Final Exam Question: Energy Equation Analysis of Pumped Storage

MEC516/BME516 Fluid Mechanics I: Solution to a past final exam. This question involves the solution of the Bernoulli equation with a pump, turbine and head losses i.e., the general energy equation. The analysis of pumped energy storage.
All the videos in this course and a copy (pdf) of this fluid mechanics presentation can be downloaded at: www.drdavidnaylor.net
Course Textbook: F.M. White and H. Xue, Fluid Mechanics, 9th Edition, McGraw-Hill, New York, 2021.

[@FluidMatters]

All the videos for this introductory Fluid Mechanics course are now available at: www.drdavidnaylor.net/

[@Mehdiranjb]

🌹🌹

[@caffrey1996]

Thank you, is the electrical power required by the pump always higher than the electrical output from the turbine?

[@FluidMatters]

If the flow rate was higher during the power generation phase, the power output from the turbine could exceed the power input from the pump. However, total energy production will always be less than the input.

[@MuhammadQasim-th3ed]

Sir ❤❤😍🙋👍🤲

[@muhtasimrahman2083]

why the pump energy is negative?

[@FluidMatters]

It is not.

[@1light4love]

This is the PERFECT Exam review question!! Thank you! Very clear, straight forward and applicable to life outside college🤓🙏🫶

[@FluidMatters]

Thanks for the kind words. Glad to hear it was helpful. Good luck with your studies.