Friction factor in case of turbulant flow is given by Colebrook-White equation, so i used solution of that equation given by Swamee-Jain for obtaining Darcy's friction factor.
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(7) An air conditioning system requires 0.0001 m/s of R-12 refrigerant to be pumped through a...
Q3 (40 pts): Water is pumped through a 60-m-long, 0.3-m-diameter pipe from a lower reservoir to a higher reservoir, which has a water surface 10 m above the lower one. When the pump adds 40 kW to the water the flowrate is 0.20 m/s. Assume the following coefficients of minor losses: • Entrance: Kentrance = 0.5 Exit: Kexit = 1 Each elbow: Kelbow = 1.5 • Valve: K= 6 Part A (20 pts) Determine the pipe roughness ε. Part B...
Water (density 998 kg/m', absolute viscosity 1.12x10 Ns/m2) is pumped from a lake into a reservoir at a rate of 0.7 m/s. The water flows through a re-entrant opening, a valve, and a sharp-edged exit, which have loss coefficients of 0.8, 10, and 1, respectively. The pipe has an absolute roughness of 1x104m and di of 0.30 m. The pump efficiency is 65%. A) Is the flow in the pipe laminar or turbulent? (2 points) B) What is the power...
Water (density 998 kg/mº, dynamic viscosity 0.001 Pa s) is pumped between two reservoirs at a volumetric flow rate of 0.006 m/s through a 120-m long pipe of 5 cm diameter. The roughness ratio of the pipe is a/d = 0.001. There are some fittings and valves in the pipe system, as shown in Figure Q1. The loss coefficients of the valves and fittings can be found in Table Q1. The Darcy friction factor can be found in the Moody...
Water is being pumped from reservoir A to reservoir F through a 30-m long PVC pipe (e 0) of diameter 0.150 m. There is an open gate valve located at C; 90 bends (threaded) located at B. D and E; and a pump shown with the letter P. The pump is required to deliver 0.25 m'/s of water to reservoir F from A. NOTE: p. 1000 kg/m. y=9.80 kN/m, v= 1.12 x 10 m/s L-30-m to' -0.25m %2 10 m...
8-C) As shown below water is pumped and sprayed through a nozzle into the atmosphere at 20 m/s at an elevation 10 m above the reservoir surface. The mass flow rate is 40 kg/s and the volumetric flow rate is 0.040 m3/s. The large diameter inlet pipe total length is 50 m. The pump effidency is 65%. The longer smaller diameter pipe leaving the pump is 200 m in total length. The pipes have different diameters as indicated below. The...
Task 1: You were asked to check up the status of the water system. Water at 24 °C is to be pumped from a Lower reservoir with 100 m elevation to another reservoir at a higher elevation 112 m through 150-m-long pipe as shown in Figure (1). The pipe is made of steel, and the diameter of the pipe is equal to 30 cm. Water is to be pumped by a 72% efficient motor-pump combination that draws 33 A of...
(100 points) Water at 25°C is pumped at a rate of 0.075m's from a reservoir 20m above a pump to a free 1. discharge (this means discharged to atmosphere) 35m above the pump. The pressure on the intake side of the pump is 150kPa and the pressure on the discharge side of the pump is 450kPa. The pipe between the reservoir and the pump is 3 meters of Sin diameter cast iron. From the pump to the discharge the pipe...