2.3. Designing Steel Pipe Diameter

Try these first

1. 1.

   Define major losses in pipe flow.

   Hint

   Consider what happens as fluid flows through a pipe.

2. 2.

   What is the Darcy-Weisbach equation used for?

   Hint

   Think about energy loss in pipes.

3. 3.

   What are the two types of losses in pipe flow?

   • Major and minor
   • Minor and negligible
   • Major and significant

   Hint

   Think about the sources of energy loss.

4. 4.

   True or False: The Darcy-Weisbach equation is used to find head loss in fluid flows.

   • True
   • False

   Hint

   Consider if the equation relates energy and flow.

5. 5.

   Design a pipe system to carry oil with a given viscosity through a 500 m length while keeping head loss below 5%. Calculate the necessary diameter, given the effective roughness height.

   Hint

   Consider conservation of energy principles.

6. 6.

   A 200 mm diameter pipe carries water at 3 m/s. Determine the head loss if the effective roughness is 0.1 mm over a 200 m length.

   Hint

   Don't forget the units while calculating!