Q3. In Fig. 3 below, the pump move water from tank A to pressurized Tank B at rate of 100 m³ in 5 min. Perform appropriate calculation to determine if the pump with 2.5 hp works for this purpose. Repeat the calculation and determine if the pump works with air pressure in Tank B of 2.5 atm instead 1.5 atm.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q3.
In Fig. 3 below, the pump move water from tank A to pressurized Tank B at rate of 100 m3 in 5 min. Perform
appropriate calculation to determine if the pump with 2.5 hp works for this purpose. Repeat the
calculation and determine if the pump works with air pressure in Tank B of 2.5 atm instead 1.5 atm.
B
P- 1.5 atm
Pressure
slow release
4 m
50 m
4 m
Pump
Figure 3 water supply system
Q4.
The elbow flow passage volume is 0.4 m3. The water volume flowrate at the inlet is 0.4 m³/s and the elbow
inlet pressure is 150 kPa and outlet pressure at point B and C are 50 kPa. The inlet velocity at point A is 18
m/s. Assume the diameter at point C equals the diameter at point B. The elbow mass is 12 kg. Calculate
the horizontal (x direction) and vertical (y direction) anchoring forces required to hold the elbow in place.
B
y
L.
18 m/s
Figure 4 Elbow flow
Transcribed Image Text:Q3. In Fig. 3 below, the pump move water from tank A to pressurized Tank B at rate of 100 m3 in 5 min. Perform appropriate calculation to determine if the pump with 2.5 hp works for this purpose. Repeat the calculation and determine if the pump works with air pressure in Tank B of 2.5 atm instead 1.5 atm. B P- 1.5 atm Pressure slow release 4 m 50 m 4 m Pump Figure 3 water supply system Q4. The elbow flow passage volume is 0.4 m3. The water volume flowrate at the inlet is 0.4 m³/s and the elbow inlet pressure is 150 kPa and outlet pressure at point B and C are 50 kPa. The inlet velocity at point A is 18 m/s. Assume the diameter at point C equals the diameter at point B. The elbow mass is 12 kg. Calculate the horizontal (x direction) and vertical (y direction) anchoring forces required to hold the elbow in place. B y L. 18 m/s Figure 4 Elbow flow
Q1.
A trapezoid-shaped tank used to supply potable water to a small area which includes 8 villas (Figure 1).
The tank bottom base is 3 m, while the top base is 5 m. The tank is partially submerged vertically in water
so that the top is 1 m above the surface and the bottom is 3 m below the surface. Determine the total
force exerted on the trapezoidal wall by the water.
Vertical Pipe line from overhear tank
Main distribution line
Overhead tank
Secondary distribution line
Villa
Villa
Valve
Villa
Villa
G.L.
Venturimeter
Villa
Villa
Villa
Villa
Junction
Figure 1. Water Supply and Distribution System
Q2.
The water flows through a horizontal Venturi-meter at section 2 in Figure 1. The inlet and throat diameters
are shown in Fig. 2 below. A mercury filled a U-tube manometer connected to the inlet and throat shows
a difference in mercury level of 300 mm. The specific gravity of mercury is 13.6. Determine the flow rate,
and the difference in pressure between the inlet and throat.
Throat
Area, AT
Aol 75mm dia
25mm dia
h= 300mm
Manometer
Mercury
Figure 2 Venturi-meter with U-tube manometer
中。
Transcribed Image Text:Q1. A trapezoid-shaped tank used to supply potable water to a small area which includes 8 villas (Figure 1). The tank bottom base is 3 m, while the top base is 5 m. The tank is partially submerged vertically in water so that the top is 1 m above the surface and the bottom is 3 m below the surface. Determine the total force exerted on the trapezoidal wall by the water. Vertical Pipe line from overhear tank Main distribution line Overhead tank Secondary distribution line Villa Villa Valve Villa Villa G.L. Venturimeter Villa Villa Villa Villa Junction Figure 1. Water Supply and Distribution System Q2. The water flows through a horizontal Venturi-meter at section 2 in Figure 1. The inlet and throat diameters are shown in Fig. 2 below. A mercury filled a U-tube manometer connected to the inlet and throat shows a difference in mercury level of 300 mm. The specific gravity of mercury is 13.6. Determine the flow rate, and the difference in pressure between the inlet and throat. Throat Area, AT Aol 75mm dia 25mm dia h= 300mm Manometer Mercury Figure 2 Venturi-meter with U-tube manometer 中。
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