Question
A pump delivers 2.5 liters/ second of water at 30C via a pipe of 50 mm diameter and surface roughness 0.5mm. The water is drawn
A pump delivers 2.5 liters/ second of water at 30C via a pipe of 50 mm diameter and surface roughness 0.5mm. The water is drawn from a tank maintained at atmospheric pressure and delivered to a tank that is maintained at 2 bar (gage). The pump is 1 meter above the level of water in the suction tank and the length of the suction side of the pipe is 3 m. The delivery tank is located 2 meters above the pump and the length of the delivery side of the pipe is 17 m. The suction side has a foot value (minor loss coefficient = 7), a gate value (minor loss coefficient = 0.5) and an 90 elbow bend (minor loss coefficient = 0.5). The delivery side has two 90 elbow bends (minor loss coefficient = 0.5). The delivery side exits into the delivery tank with minor loss coefficient is 1.0. Kinematic viscosity is u = 0.8 x 10^{-6} m^2/s
What's the head (in m) due to the pressure difference between the supply and delivery tanks?
What's the total static head (in m)? Total static head is sum of pressure head and elevation head.
What's the velocity (in m/s) of water in the pipe?
What's the Reynold's number?
The flow in the pipe is turbulent. True or False?
6 1 point -2 The friction factor is given by f = fit if the flow is laminar and is f = 0.25 [log10 (2 + 4)] ED 3.7 5.74 Re0.9 if the flow is turbulent. Re Based on the values of Re, E and D, what's the value of the friction factor? Type your answer... 7 1 point What's the total major head loss (in m) in the system? Type your answer... 8 1 point What's the total minor loss (in m) in the system? Type your answer... 9 1 point What's the total head loss in the system? Type your answer... 10 1 point What's the head (in m) delivered by the pump? Type your answer... What's the power in watts) delivered by the pump? Type your answer... 12 1 point If the efficiency of the pump and motor is 85%, what's the power (in watts) consumed by the pump? Type your answer... 13 1 point What's the head loss on the suction side? Type your answer... 14 1 point What's the gage pressure (in m) at the inlet to the pump? Type your answer... 15 1 point What's the absolute pressure (in kPa) at the inlet to the pump? Type your answer... 16 1 point What's the absolute pressure (in m of water) at the inlet to the pump? Type yourStep by Step Solution
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