Question

1) A two-cell intake tower located in a warm climate reservoir is being designed for a design flow rate of 5,000 m3/d. the tower will have three ports at three different elevations in each cell. Each port must be able to deliver the design flow rate operating alone. Determine the area of each port opening? Answer: with v = 2 m/s, A = 0.29 m2

2) For problem 1, if bar rack screens are installed on the ports with a clear opening of 6 cm and a bar 2 cm in width (opening is square). Determine the area of each port? Answer: A = 0.36 m2

3) Determine the diameter of a new unlined steel conduit to transport water from the intake tower in problem 1 to a lifting station. The slope of energy grade line between the tower and the lifting station is 0.0035. (Assume life-expectancy design capacity). Answer: D = 0.35 m

Answer 1