Water is retained in a small mountain lake whose surface is 280 ft above the inlet to the turbines in a power house. Surveyors have laid out the best line location for the piping system to bring the water down to the power house, the route being 3100 ft. What is the minimum standard diameter of pipe which may be used so that the natural flow will be 1000 gpm and the pressure at the turbine nozzles will be 100 psig? Th normal water temperature is 40°F. O 6 in sch 40 O 8 in sch 80 O 10 in sch 80 O 12 in sch 40

Problem 2 A pump is needed in a water supply system. The water is being pumped out of a ground-level storage reservoir with water surface elevation of 149.27 ft and needs to pass over a hill 2 miles away, where the pipe centerline is at elevation 200.00 ft. The flowrate is 22 mgd, pipe diameter is 24 inches, Hazen-Williams friction factor is 110, and pressure at the crest of the hill must be at least 20 psi. (a) What head must the pump provide? (b) How much power will be added to the water? (c) What size motor should be purchased if the pump/motor combination has an efficiency of 80 percent?

A pressurized tank and piping system are shown in the figure. The tank pressure is maintained at 175 kPa. The line is made of 12 m of 1 std type M copper tubing and it conveys gasoline (octane). What is the expected flow rate through the line? All fittings are soldered (same as flanged) and regular. 4 m 175 kPa 1 m

For the hydraulic system of Figure 8, the following data are given: The pump is adding2.984kW to the fluid.(a) Pump flow is 0.00158 m3(b) The pipe inside diameter is 0.0254m.(c) The specific gravity of the oil is 0.9.(d) The oil tank is vented to the atmosphere.(e) The head loss HL between station 1 and 2 is 12.19m.(f) The elevation difference between stations 1 and 2 is 6.096m.Find the pressure available at the inlet to the hydraulic motor(station 2).