24.3.1. Orifice Meter Functionality

Try these first

1. 1.

   What is an orifice meter?

   Hint

   Think about how the flow is measured.

2. 2.

   What does Bernoulli's equation relate?

   Hint

   Consider the properties of fluid under motion.

3. 3.

   What is the primary function of an orifice meter?

   • To measure pressure
   • To measure fluid flow
   • To increase fluid velocity

   Hint

   Consider how fluids are physically measured.

4. 4.

   True or False: The coefficient of discharge is a measure of the ratio of actual discharge to theoretical discharge.

   • True
   • False

   Hint

   Think about what 'coefficient' means.

5. 5.

   An orifice meter measures the flow of water with a theoretical discharge of 120 L/s. If due to turbulence, the actual discharge is recorded at 100 L/s, calculate the coefficient of discharge.

   Hint

   Make sure to use the ratio formula correctly.

6. 6.

   A pipeline has a flow with velocity profiles that follow a parabolic distribution. If the velocity at the center is 3 m/s and the average velocity calculated was 2.5 m/s, determine the kinetic energy correction factor (α).

   Hint

   Think about what happens to velocities in different flow regimes.