Three reservoirs A, B, and C are connected respectively with pipes 1, 2, and 3 joining at a common junction P. Reservoir A is at elevation 80 m, reservoir B at elevation 70 m and reservoir C is at elevation 60 m. The properties of each pipe are as follows:
Pipe 1: L = 5000 m, D = 300 mm
Pipe 2: L = 4000 m, D = 250 mm
Pipe 3: L = 3500 m
The flow from reservoir A to junction P is 0.045 m3/s and f for all pipes is 0.018.
Find the elevation of the energy grade line at P in m.
Determine the flow on pipe 2 in m3/s.
Compute the diameter appropriate for pipe 3 in mm.
A reservoir 10 ft. deep is in the form of a frustum of inverted square pyramid with bases of 100 and 90 ft. on a side respectively. How long will it require an inlet pipe to fill the reservoir if the water pours in at the rate of 200 gal. per min.? (One gal. = 231 cu. in.)