Determine the energy loss due to a sudden enlargement from a 50 mm OD × 2.4 mm wall plastic pipe to a 90 mm OD × 2.8 mm wall plastic pipe when the velocity of flow is 3 m/s in the smaller pipe.
Determine the energy loss due to a sudden enlargement from a standard DN 25 Schedule 80 steel pipe to a DN 90 mm Schedule 80 steel pipe when the rate of flow is 3*10^-3 m3/ s.