#### Mechanical Energy Balance: Summary

The answers to the ConcepTests are given below and will open in a separate window.
##### Key points from this module:
• The mechanical energy balance assumes an incompressible fluid and steady-state flow.
• An increase in fluid velocity corresponds to a decrease in the sum of the static pressure, potential energy and internal energy.
• For a fluid flowing horizontally, when the velocity increases, the pressure decreases.
• The Bernoulli equation is used when the there are no frictional losses and no shaft work.
• A Pitot tube can be used to measure fluid velocity by using the Bernoulli equation.
##### From studying this module, you should now be able to:
• Apply Bernoulli’s equations to determine flow rates.
• Know where to apply Bernoulli’s Equation in a system.
• Make assumptions based on the physical nature of the problem.
• Use Bernoulli’s equation to find velocity, pressure, and/or height at any point in the system.
• Use the continuity equation in conjunction with Bernoulli’s equation to relate two velocities.