Homework Answers
A pump that is 80% efficient pumps water from the lower tank to the upper tank...
A pump that is 80% efficient pumps water from the lower tank to the upper tank at a flow rate of 0.01 m/s through 70 meters of 10-cm diameter pipe. In this system there are two regular, screwed 90 degree elbows and a fully open screwed angle valve. Assume the reservoir exits and entrances are sharp. The friction factor,f, of the pipe is 0.02. What horsepower pump is needed to achieve this flow rate? Use: Pwater = 998 kg/m2; Mwater...
A pump draws water from a well through a 153mm vertical tube. The pump has a...
A pump draws water from a well through a 153mm vertical tube. The pump has a horizontal discharge tube of 102mm in diameter, which is 3.23m above the water level in the well. While the flow rate is 0.035m³ / s, pressure gauges near the pump at the inlet and outlet indicate -31.44Kpa and 176.51Kpa respectively. The discharge indicator is 1.91 m above the suction indicator. Determine the power supplied by the pump. Use for the questions below g =...
A centrifugal pump test yields the following data: Pump Head Flow (m)(L/min) 30 25 20 40 The pump...
A centrifugal pump test yields the following data: Pump Head Flow (m)(L/min) 30 25 20 40 The pump curve can be approximated by a parabola. This pump draws water from a large reservoir. The discharge of the pump feeds 150 m of 1.5 cm inside diameter pipe and then 225 m of 3 cm inside diameter pipe.. The two pipes both have a roughness of 0.5 mm The 3 cm pipe discharges to atmosphere a distance 40 m below the...
You need to pump water at 20 C from an open reservoir at flow rate of...
You need to pump water at 20 C from an open reservoir at flow rate of 1.4 x 10^-3 m3/s through a pipe with an inside diameter of 0.03m, using a centrifugal pump having an (NPSH)aq =2.5 m and the equivalent length on the suction side is 3m. There are several minor losses: four standar 90 flanged elbows, and fully open flanged globe valve, fully open flanged gate valve, and the Entrance. What is the the maximum distance above the...
Q4. A pump draws water from a large reservoir and delivers it to another reservoir whose water surface is 10 m higher than the pump centreline and that the pump is 1.5 meter above the suction reservo...
Q4. A pump draws water from a large reservoir and delivers it to another reservoir whose water surface is 10 m higher than the pump centreline and that the pump is 1.5 meter above the suction reservoir. The total suction and deliver pipe used is 21.1 m in length, 9 cm in diameter and has a Darcy friction factor f0.0339. The pump operates at 750 rpm and its characteristic performances are given in table below: Q (m3 s H (m)15...
Please answer question 3 and 4 Question 3: Water flows from a reservoir through a 16-inch...
Please answer question 3 and
4
Question 3: Water flows from a reservoir through a 16-inch
diameter pipe and then discharges at a 2-inch nozzle. If the
velocity in the pipe is 5 ft/sec, what is the velocity in the
nozzle, in ft/sec?
Question 4: A water deliver company is trying to decide which
size pipe to use. They need to deliver 500 GPM and keep their
velocity below the 15 ft/sec threshold. What minimum size pipe
should they use?...
Water at 15° is flowing at the rate of 14.4m²/hr (Fig. 2). The head added by...
Water at 15° is flowing at the rate of 14.4m²/hr (Fig. 2). The head added by the pump is equivalent to 80 m. Both tanks are vented. Suction line is 15m long and discharge line is 200m long. Both suction and discharge lines are standard 2-inch (5.1cm) clean steel pipe with roughness value of ε = 5.1 x 108m. Assume that the entrance from Tankl is through a rounded inlet with inlet radius of 10mm and that the elbows are...
A pump carries water at a temperature of 30 ° C from one tank (A) to...
A pump carries water at a temperature of 30 ° C from one tank
(A) to another (B). The diameter of the pipe leaving tank A and
reaching the pump is 4 inches. The diameter of the pipe leaving the
pump and reaching tank B is 3 inches. The pump motor increases the
fluid pressure by 3 kgf / cm2 (ΔP), and generates a power per unit
of mass of 300 J / kg. Calculate the height difference (ΔZ) between...
14-34 A water pump is used to pump water from one large reservoir to another large...
14-34 A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmo- spheric pressure, as sketched in Fig. P14-34. The dimen sions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expres- sion Havailable H av?, where the shutoff head H 40 m of water column, coefficient a = 0.053 m/Lpm?, available...
- + Fit to page LO (15 marks) Exercise 2 Water at 15° is flowing at...
- + Fit to page LO (15 marks) Exercise 2 Water at 15° is flowing at the rate of 14.4m/hr (Fig. 2). The head added by the pump is equivalent to 80 m. Both tanks are vented. Suction line is 15m long and discharge line is 200m long. Both suction and discharge lines are standard 2-inch (5.1cm) clean steel pipe with roughness value of s=5.1 x 10ʻm. Assume that the entrance from Tankl is through a rounded inlet with inlet...
A pump that is 80% efficient pumps water from the lower tank to the upper tank at a flow rate of 0.01 m/s through 70 meters of 10-cm diameter pipe. In this system there are two regular, screwed 90 degree elbows and a fully open screwed angle valve. Assume the reservoir exits and entrances are sharp. The friction factor,f, of the pipe is 0.02. What horsepower pump is needed to achieve this flow rate? Use: Pwater = 998 kg/m2; Mwater...
A centrifugal pump test yields the following data: Pump Head Flow (m)(L/min) 30 25 20 40 The pump curve can be approximated by a parabola. This pump draws water from a large reservoir. The discharge of the pump feeds 150 m of 1.5 cm inside diameter pipe and then 225 m of 3 cm inside diameter pipe.. The two pipes both have a roughness of 0.5 mm The 3 cm pipe discharges to atmosphere a distance 40 m below the...
Q4. A pump draws water from a large reservoir and delivers it to another reservoir whose water surface is 10 m higher than the pump centreline and that the pump is 1.5 meter above the suction reservoir. The total suction and deliver pipe used is 21.1 m in length, 9 cm in diameter and has a Darcy friction factor f0.0339. The pump operates at 750 rpm and its characteristic performances are given in table below: Q (m3 s H (m)15...
Please answer question 3 and
4
Question 3: Water flows from a reservoir through a 16-inch
diameter pipe and then discharges at a 2-inch nozzle. If the
velocity in the pipe is 5 ft/sec, what is the velocity in the
nozzle, in ft/sec?
Question 4: A water deliver company is trying to decide which
size pipe to use. They need to deliver 500 GPM and keep their
velocity below the 15 ft/sec threshold. What minimum size pipe
should they use?...
Water at 15° is flowing at the rate of 14.4m²/hr (Fig. 2). The head added by the pump is equivalent to 80 m. Both tanks are vented. Suction line is 15m long and discharge line is 200m long. Both suction and discharge lines are standard 2-inch (5.1cm) clean steel pipe with roughness value of ε = 5.1 x 108m. Assume that the entrance from Tankl is through a rounded inlet with inlet radius of 10mm and that the elbows are...
A pump carries water at a temperature of 30 ° C from one tank
(A) to another (B). The diameter of the pipe leaving tank A and
reaching the pump is 4 inches. The diameter of the pipe leaving the
pump and reaching tank B is 3 inches. The pump motor increases the
fluid pressure by 3 kgf / cm2 (ΔP), and generates a power per unit
of mass of 300 J / kg. Calculate the height difference (ΔZ) between...
14-34 A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmo- spheric pressure, as sketched in Fig. P14-34. The dimen sions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expres- sion Havailable H av?, where the shutoff head H 40 m of water column, coefficient a = 0.053 m/Lpm?, available...
- + Fit to page LO (15 marks) Exercise 2 Water at 15° is flowing at the rate of 14.4m/hr (Fig. 2). The head added by the pump is equivalent to 80 m. Both tanks are vented. Suction line is 15m long and discharge line is 200m long. Both suction and discharge lines are standard 2-inch (5.1cm) clean steel pipe with roughness value of s=5.1 x 10ʻm. Assume that the entrance from Tankl is through a rounded inlet with inlet...
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