Water flows in a steel pipe (ɛ = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D= 18 inches and the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z; = 100 feet above the datum. The elevation at section 2 is zą = 75 feet above the datum. The temperature of the water is 70°F. The kinematic viscosity of the water is 1.06 x 10 ft/s. The pressure at section 1 is pi = 90 psig (pounds per square inch gage). a) Determine the velocity v in feet per second (fps). b) Determine the Reynolds number Re. c) Classify the flow based on the Reynolds number Re. d) Determine the Darcy-Weisbach friction factor f. e) Determine the friction head loss hjaic in feet in the pipe between section 1 and section 2. f) Determine the pressure pz in psiq at section 2.

The gauge pressure of water at A is 150.5 kPa. Water flows through the pipe at A with a velocity of 18 m/s, and out the pipe at B and C with the same velocity v. Neglect the weight of water within the pipe and the weight of the pipe. The pipe has a diameter of 50 mm at A, and at B and C the diameter is 29 mm. pw = 1000 kg/m³. (Figure 1) Figure v B v y -X A 1 18 m/s 1 of 1 Part A Determine the x component of force exerted on the elbow necessary to hold the pipe assembly in equilibrium. Express your answer to three significant figures and include the appropriate units. F₁ = Submit Part B F₁ = μA Submit Value Request Answer Determine the y component of force exerted on the elbow necessary to hold the pipe assembly in equilibrium. Express your answer to three significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?

Answer the first question

Water is pumped up from a reservoir to a smaller holding tank. If the flow rate through the pipe is 50 LPM, find the NPSH available immediately before the pump. The length of the pipe from the reservoir to the pump is 13.1 meters, and its diameter is 2.8 cm. The distance is h2=6.8 m.  Assume a friction factor of 0.021. The vapor pressure of water at the current temperature is 2,399 Pa.  Current atmospheric pressure is 95,194 Pa.  The density of water is 991 kg/m^3