![2. A homologous model of a centrifugal pump runs at 500 rpm against a head of 7m, drawing4 kW of power. If a prototype, 6 times the size of the model is to develop a head of 36m, and the overall efficiency of the model and prototype is 0.75 and 0.8 respectively, determine the rotational speed, discharge and power. (10 marks]](http://img.homeworklib.com/questions/22554760-51a5-11eb-8708-c7eed91f45d6.png?x-oss-process=image/resize,w_560)
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Fluid Mechanics
2. A homologous model of a centrifugal pump runs at 500 rpm against a...
A 1/4-scale model centrifugal pump is tested to pump water with density of 1000 kg/m under...
A 1/4-scale model centrifugal pump is tested to pump water with density of 1000 kg/m under a head of 7.5 m at speed of 500 rpm. It was found that 7.5 kW was needed to drive the model. Assuming the pumps is geometrical similar and similar mechanical efficiency, determine; (i) speed and power required by the prototype when pumping against a head of 44 m; ratio of the discharges between model and prototype; and head, capacity and power coefficient of...
fluid Q2: A centrifugal pump with an impeller diameter of 220 mm has to pump 0.02...
fluid
Q2: A centrifugal pump with an impeller diameter of 220 mm has to pump 0.02 mº/s of brackish water to an RO unit with following performance data at the best efficiency point: impeller speed =3000 rpm, total head= 68 m, net positive suction head=1.8 m, input power=16 hp. Evaluate the performance of a homologous pump with twice the impeller diameter operating at half the impeller speed. (15 Marks) 2016)
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...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure of a liquid in order to move it through a piping system. The pump is driven by a motor, which must provide sufficient power to operate the pump at the desired conditions. You wish to find the pressure developed by a pump operating at a flow rate of 300 gpm with an oil having a specific gravity (SG) of 0.8 and a viscosity of...
13. A centrifugal pump whose outer diameter is twice the inner diameter, runs at 600 rpm....
13. A centrifugal pump whose outer diameter is twice the inner diameter, runs at 600 rpm. The radial gh the pump is constant at 2.5 m/s and the flow is radial at the pump inlet. The rotor vanes are curved back at exit at an angle of 40° to the tangent. If the outer diameter of the rotor is 500 mm and the blade width is 50 mm at exit, the tangential component of absolute velocity at rotor exit (in...
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...
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....
A centrifugal pump with a 700 mm diameter rotor runs at 1800 rpm. The water enters...
A centrifugal pump with a 700 mm diameter rotor runs at 1800 rpm. The water enters without whirl (Q1 = 90°) and a2 = 60 (a is the angle between the absolute velocity and the local tangent to the circumference). The outlet (absolute) velocity magnitude is 6 m/s. The local gravitational field is 9.81 m/s². (a) From the Euler formula, calculate the theoretical head produced by the pump (20%), (b) if the actual head measured is 17 m, calculate the...
PAGE 2 ME2135/ME2135E QUESTION 1 A centrifugal pump of 0.37 m diameter, is pumping water (of dens...
PAGE 2 ME2135/ME2135E QUESTION 1 A centrifugal pump of 0.37 m diameter, is pumping water (of density 998 kg/m) at 2160 rpm and produces the following performance data (where the symbols used have their usual meaning): Q (m3/s) | 0.0 H (m)105 P (kW) 100 0.05 104 115 0.10 102 135 0.15 0.20 95 202 0.25 85 228 0.30 67 249 100 Determine (a) the best efficiency point (BEP) and (b) the maximum possible discharge estimated from the tabulated performance...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
A 1/4-scale model centrifugal pump is tested to pump water with density of 1000 kg/m under a head of 7.5 m at speed of 500 rpm. It was found that 7.5 kW was needed to drive the model. Assuming the pumps is geometrical similar and similar mechanical efficiency, determine; (i) speed and power required by the prototype when pumping against a head of 44 m; ratio of the discharges between model and prototype; and head, capacity and power coefficient of...
fluid
Q2: A centrifugal pump with an impeller diameter of 220 mm has to pump 0.02 mº/s of brackish water to an RO unit with following performance data at the best efficiency point: impeller speed =3000 rpm, total head= 68 m, net positive suction head=1.8 m, input power=16 hp. Evaluate the performance of a homologous pump with twice the impeller diameter operating at half the impeller speed. (15 Marks) 2016)
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...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure of a liquid in order to move it through a piping system. The pump is driven by a motor, which must provide sufficient power to operate the pump at the desired conditions. You wish to find the pressure developed by a pump operating at a flow rate of 300 gpm with an oil having a specific gravity (SG) of 0.8 and a viscosity of...
13. A centrifugal pump whose outer diameter is twice the inner diameter, runs at 600 rpm. The radial gh the pump is constant at 2.5 m/s and the flow is radial at the pump inlet. The rotor vanes are curved back at exit at an angle of 40° to the tangent. If the outer diameter of the rotor is 500 mm and the blade width is 50 mm at exit, the tangential component of absolute velocity at rotor exit (in...
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...
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....
A centrifugal pump with a 700 mm diameter rotor runs at 1800 rpm. The water enters without whirl (Q1 = 90°) and a2 = 60 (a is the angle between the absolute velocity and the local tangent to the circumference). The outlet (absolute) velocity magnitude is 6 m/s. The local gravitational field is 9.81 m/s². (a) From the Euler formula, calculate the theoretical head produced by the pump (20%), (b) if the actual head measured is 17 m, calculate the...
PAGE 2 ME2135/ME2135E QUESTION 1 A centrifugal pump of 0.37 m diameter, is pumping water (of density 998 kg/m) at 2160 rpm and produces the following performance data (where the symbols used have their usual meaning): Q (m3/s) | 0.0 H (m)105 P (kW) 100 0.05 104 115 0.10 102 135 0.15 0.20 95 202 0.25 85 228 0.30 67 249 100 Determine (a) the best efficiency point (BEP) and (b) the maximum possible discharge estimated from the tabulated performance...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
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