1.2.1. Energy Losses in Pipes

Try these first

1. 1.

   What are the two types of energy losses in pipes?

   Hint

   Think of how friction and fittings affect the flow.

2. 2.

   What does the Reynolds number indicate?

   Hint

   Recall the critical value of 2000.

3. 3.

   What are major losses primarily caused by?

   • Reynolds number
   • Friction
   • Gravity

   Hint

   Think about what opposes fluid flow in a pipe.

4. 4.

   True or False: Minor losses are not significant compared to major losses in pipe flow.

   • True
   • False

   Hint

   Consider the effects of fittings.

5. 5.

   A water system uses pipes in series with various diameters and lengths. Given that the first pipe has a head loss of 2.5m and the second pipe has a head loss of 3.5 m, determine the flow efficiency of the system considering minor losses are negligible.

   Hint

   Utilize energy conservation principles for your calculations.

6. 6.

   In a parallel pipe system, if the energy losses in Pipe A are 1.2m and Pipe B has 0.8m, how would the surge pressure be affected if the diameter of Pipe B is increased?

   Hint

   Consider the relationship between diameter and velocity when computing your answer.