18.1.1. Energy Losses in Pipe Flow

Try these first

1. 1.

   What is head loss in a pipe system?

   Hint

   Think about energy dissipation as water flows.

2. 2.

   Name two factors that impact energy loss in pipes.

   Hint

   Consider what influences flow resistance.

3. 3.

   What does head loss in pipe flow refer to?

   • Increase in energy
   • Decrease in pressure due to friction
   • Constant energy level

   Hint

   Think about what happens to energy in flowing fluids.

4. 4.

   Is turbulence likely to increase energy loss in pipe flow?

   • True
   • False

   Hint

   Recall the impact of flow characteristics.

5. 5.

   A pipe has a diameter of 0.2 m, a length of 250 m, and flows with a velocity of 4 m/s. Calculate the head loss using a friction factor of 0.015. Show your calculations.

   Hint

   Don’t forget to use g = 9.81 m/s² in your calculation.

6. 6.

   Discuss how increasing the roughness of a pipe affects energy losses and the Reynolds number. Provide examples.

   Hint

   Consider the relationship between friction factors and flow regimes.