A water irrigation pump running at 1200 rpm produces a head of 50m and a flow...
A water irrigation pump running at 1200 rpm produces a head of 50m and a flow rate of 40m³/h. The NPSHr at this duty point is 3m.
1) If the discharge pressure is to be increased to 540kPa, calculate the speed required to achieve this pressure.
2) Estimate the NPSHr required by the pump at the new speed.
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A water irrigation pump running at 1200 rpm produces a head of
50m and a flow...
A centrifugal pump operating at 1200 rpm is delivering 10 m^3/h of water at 10 bars...
A centrifugal pump operating at 1200 rpm is delivering 10 m^3/h
of water at 10 bars and requires 6 kW of shaft power at the best
efficiency point.
a. Determine the effiecincy of the pump
b. Deterine the flow rate, discharge pressire, and required
shaft power at the corresponding point of 1800 rpm.
4. A centrifugal pump operating at 1200 rpm is delivering 18 m2/h of water at 10 bars and requires 6 kW of shaft power at the best...
A water pump has been operating at a pump station at speed 1000 rpm. The pipeline...
A water pump has been operating at a pump station at speed 1000 rpm. The pipeline system characteristics at the station are as follows. Head loss in pipeline: 80 1 Discharge (LS) 0 20 40 60 Head (m) 4 10 20 The static head is 20 m. The pump characteristics at speed 1000 rpm are provided by the manufacturer and given as follows. Discharge (IS) 0 20 40 50 60 Head (m) 50 45 14 Efficiency (%) 60 69 60...
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%? 4) If a 60kW pump is o...
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
A 6.5-in pump, running at 3500 rpm, has the measured performance for water. If this pump...
A 6.5-in pump, running at 3500 rpm, has the measured performance for water. If this pump is rescaled in water to require 20 hp for break horsepower input at BEP point while running at 3000 rpm, determine the appropriate (a) impeller diameter; (b) flow rate; and (c) efficiency for this new condition. 50 100 150 200 250 400 450 Q, gal/min: H, ft: 201 200 194 189 156 300 350 181 169 80 81 198 64 139 72 29 50...
When a water pump was tested at a rotation rate of 1500 rpm, the following data...
When a water pump was tested at a rotation rate of 1500 rpm, the following data was obtained: Q (I/s) 0 10 20 30 40 50 H(m) 10.0 10.5 10.0 8.5 6.0 2.5 n (%) 0 0.40 0.64 0.72 0.64 0.40 It is proposed to use this pump to draw water from an open well and deliver it to a tank 5.5 m above. The delivery pipe is 20.0 m long and 100 mm diameter, and has a friction factor...
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...
1. A centrifugal pump performance data are shown in the following table for water. Pump speed-250...
Mechanical Lab II. Please answer asap with clear work. Thank
you!
1. A centrifugal pump performance data are shown in the following table for water. Pump speed-2500 RPM Pa or P2 (bar) P. or Pi (bar) Volume of water(L Time (sec) Input-Power (W) -0.3 20 60 100 For this data set, calculate the following i. Pump discharge capacity Q (LUs and GPM) ii. Pump head H (m and ft) iii. Fluid power Pr (Watt) iv. Brake power Pb (Watt) v....
3. A centrifugal pump performance data are shown in the following table for water. Pump speed...
3. A centrifugal pump performance data are shown in the following table for water. Pump speed 2500 RPM Pe or P2 (bar) P or Pi (bar) Volume of water (L) Time (sec) Input-Power (W -0.3 20 60 100 For this data set, calculate the following: i. Pump discharge capacity Q (L/s and GPM) ii. Pump head H (m and f) iii. Fluid power Pr(Watt) iv. Brake power Pb (Watt) v. Pump overall efficiency η (%) vi. Flow rate coefficient Ca...
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet....
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at...
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at 80 ft of head when the pump speed is 3000 rpm. This rating is for the best operating point of the pump: the efficiency at this point is 59 percent. (be careful with units) (a) Calculate the specific speed of the pump. (b) What is the horsepower required to operate the pump at the manufacturers rating? (c) A 1.8 horsepower motor with a speed...
A centrifugal pump operating at 1200 rpm is delivering 10 m^3/h
of water at 10 bars and requires 6 kW of shaft power at the best
efficiency point.
a. Determine the effiecincy of the pump
b. Deterine the flow rate, discharge pressire, and required
shaft power at the corresponding point of 1800 rpm.
4. A centrifugal pump operating at 1200 rpm is delivering 18 m2/h of water at 10 bars and requires 6 kW of shaft power at the best...
A water pump has been operating at a pump station at speed 1000 rpm. The pipeline system characteristics at the station are as follows. Head loss in pipeline: 80 1 Discharge (LS) 0 20 40 60 Head (m) 4 10 20 The static head is 20 m. The pump characteristics at speed 1000 rpm are provided by the manufacturer and given as follows. Discharge (IS) 0 20 40 50 60 Head (m) 50 45 14 Efficiency (%) 60 69 60...
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
4) If a 60kW pump is operating at 1200 RPM, and has a Head of 250 ft, and an 8 impeller, what happens to the Head, Power, and speed if the impeller is increased by 50%?
A 6.5-in pump, running at 3500 rpm, has the measured performance for water. If this pump is rescaled in water to require 20 hp for break horsepower input at BEP point while running at 3000 rpm, determine the appropriate (a) impeller diameter; (b) flow rate; and (c) efficiency for this new condition. 50 100 150 200 250 400 450 Q, gal/min: H, ft: 201 200 194 189 156 300 350 181 169 80 81 198 64 139 72 29 50...
When a water pump was tested at a rotation rate of 1500 rpm, the following data was obtained: Q (I/s) 0 10 20 30 40 50 H(m) 10.0 10.5 10.0 8.5 6.0 2.5 n (%) 0 0.40 0.64 0.72 0.64 0.40 It is proposed to use this pump to draw water from an open well and deliver it to a tank 5.5 m above. The delivery pipe is 20.0 m long and 100 mm diameter, and has a friction factor...
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...
Mechanical Lab II. Please answer asap with clear work. Thank
you!
1. A centrifugal pump performance data are shown in the following table for water. Pump speed-2500 RPM Pa or P2 (bar) P. or Pi (bar) Volume of water(L Time (sec) Input-Power (W) -0.3 20 60 100 For this data set, calculate the following i. Pump discharge capacity Q (LUs and GPM) ii. Pump head H (m and ft) iii. Fluid power Pr (Watt) iv. Brake power Pb (Watt) v....
3. A centrifugal pump performance data are shown in the following table for water. Pump speed 2500 RPM Pe or P2 (bar) P or Pi (bar) Volume of water (L) Time (sec) Input-Power (W -0.3 20 60 100 For this data set, calculate the following: i. Pump discharge capacity Q (L/s and GPM) ii. Pump head H (m and f) iii. Fluid power Pr(Watt) iv. Brake power Pb (Watt) v. Pump overall efficiency η (%) vi. Flow rate coefficient Ca...
A pump operating at 1170 rpm discharges 2000 gpm at a total head of 109 feet. If the pump speed is increased to 1770 rpm, what is the brake horsepower (BHP, in kW) if the pump efficiency is 72% at the new pump speed? Water temperature is 70 °F. Round your answer to the nearest whole kilowatt. (Conversion factor: 1 horsepower = 745.7 W)
3. The manufacturers rating for a centrifugal pump shows that the pump delivers 160 gpm at 80 ft of head when the pump speed is 3000 rpm. This rating is for the best operating point of the pump: the efficiency at this point is 59 percent. (be careful with units) (a) Calculate the specific speed of the pump. (b) What is the horsepower required to operate the pump at the manufacturers rating? (c) A 1.8 horsepower motor with a speed...
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