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b) A radial vaned centrifugal compressor delivers 0.3 m3/s against a head of 20 m. The...
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...
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...
2.4 A centrifugal pump delivers 26 I/s against a total head of 16 m at 1450...
2.4 A centrifugal pump delivers 26 I/s against a total head of 16 m at 1450 rpm. The impeller diameter is 0.5m. A gcometrically similar pump of 30 cm diameter is running at 2900rpm. Calculate head and discharge required assuming equal efficiencies between the two pumps (11.52 m, 11.23 l/s)
QUESTION 2 A 30 Watt brake horsepower centrifugal blower rotates at 1200 rpm and delivers air...
QUESTION 2 A 30 Watt brake horsepower centrifugal blower rotates at 1200 rpm and delivers air at 0.4 m3/s. The air enters the impeller radially and exits at an angle ?2-34° from radial. The impeller inlet radius is 40 mm and the outlet radius is 100 mm. Assuming 100% efficiency, determine the net head produced by this blower, the tangential velocity component at the outlet (Ved, the outlet blade width and the exit blade angle (Pa). [Use for air: Pai...
The flow in the impeller of a centrifugal pump is modeled by the superposition of a...
The flow in the impeller of a centrifugal pump is modeled by the superposition of a source flow and a free vortex flow. The impeller has an outer diameter of 0.5 m and an inner diameter of 0.3 m. At the outlet from the impeller, the flowing water has the following velocity components, relative to the impeller: radial component 1 m/s and tangential component 6 m/s. Determine! 1) the velocity potential and stream function for the superposition, the strength of...
QUESTION 1 A centrifugal compressor delivers 10 kg/s with total pressure rise of 5:1, and operates...
QUESTION 1 A centrifugal compressor delivers 10 kg/s with total pressure rise of 5:1, and operates at a speed of 15000 rpm. The inlet conditions are 1 bar, 27 °C and 140 m/s. Assume slip factor =0.92, isentropic efficiency = 0.81 match the correct answer for the following: - The rise in total temperature in K - The speed of the compressor Uz in m/s - Blade tip diameter in mm - The power to drive the compressor in kW...
A medium-size centrifugal air compressor has 32 radial blades and the inlet vanes allow air suction...
A medium-size centrifugal air compressor has 32 radial blades and the inlet vanes allow air suction with no pre. whirl. The rotor speed is 7800 rpm and the tip radius is r2 = 0.25 m. Air is sucked in at a static temperature T1 = 305 K with an absolute velocity V1 = 80 m/s and a mass flow rate of 1.65 kg/s. The total-to total efficiency of the compressor is 80% and the power input factor is w =...
A hydraulic pump delivers 0.5 m³/s of water against a head of 5.5 m. If the...
A hydraulic pump delivers 0.5 m³/s of water against a head of 5.5 m. If the power needed to drive the pump is 33 KW, calculate the efficiency
(b) A centrifugal pump rotates at 750 rpm. Water enters the impeller normal to the blades...
(b) A centrifugal pump rotates at 750 rpm. Water enters the impeller normal to the blades (GJ 0°) and exits at an angle of 35° from radial (α,- 35°). The inlet radius is r12.0 cm, at which the blade width bi 18.0 cm. The outlet radius is r2 24.0 cm, at which the blade width b 16.2 cm. The volume flow rate is 0.573 m/s. Assuming 100 percent efficiency. Given density of water to be 998 kg/m3 i Calculate the...
The centrifugal pump as described in Q5.8 is operating with a pre-whirl of 10° (i.e. Ui is inclin...
The centrifugal pump as described in Q5.8 is operating with a pre-whirl of 10° (i.e. Ui is inclined by 10° from the radial axis in the rotational direction). The centrifugal pump delivers 0.45 m3/s ofwater when it is running at the angular velocity of ω-1200 rpm Sketch the velocity triangles at inlet and exit of the impeller and hence determine the following items by assuming (a) negligible losses; and (b) Vi enters the impeller with θ| and V2 leaves with...
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...
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...
2.4 A centrifugal pump delivers 26 I/s against a total head of 16 m at 1450 rpm. The impeller diameter is 0.5m. A gcometrically similar pump of 30 cm diameter is running at 2900rpm. Calculate head and discharge required assuming equal efficiencies between the two pumps (11.52 m, 11.23 l/s)
QUESTION 2 A 30 Watt brake horsepower centrifugal blower rotates at 1200 rpm and delivers air at 0.4 m3/s. The air enters the impeller radially and exits at an angle ?2-34° from radial. The impeller inlet radius is 40 mm and the outlet radius is 100 mm. Assuming 100% efficiency, determine the net head produced by this blower, the tangential velocity component at the outlet (Ved, the outlet blade width and the exit blade angle (Pa). [Use for air: Pai...
The flow in the impeller of a centrifugal pump is modeled by the superposition of a source flow and a free vortex flow. The impeller has an outer diameter of 0.5 m and an inner diameter of 0.3 m. At the outlet from the impeller, the flowing water has the following velocity components, relative to the impeller: radial component 1 m/s and tangential component 6 m/s. Determine! 1) the velocity potential and stream function for the superposition, the strength of...
QUESTION 1 A centrifugal compressor delivers 10 kg/s with total pressure rise of 5:1, and operates at a speed of 15000 rpm. The inlet conditions are 1 bar, 27 °C and 140 m/s. Assume slip factor =0.92, isentropic efficiency = 0.81 match the correct answer for the following: - The rise in total temperature in K - The speed of the compressor Uz in m/s - Blade tip diameter in mm - The power to drive the compressor in kW...
A medium-size centrifugal air compressor has 32 radial blades and the inlet vanes allow air suction with no pre. whirl. The rotor speed is 7800 rpm and the tip radius is r2 = 0.25 m. Air is sucked in at a static temperature T1 = 305 K with an absolute velocity V1 = 80 m/s and a mass flow rate of 1.65 kg/s. The total-to total efficiency of the compressor is 80% and the power input factor is w =...
(b) A centrifugal pump rotates at 750 rpm. Water enters the impeller normal to the blades (GJ 0°) and exits at an angle of 35° from radial (α,- 35°). The inlet radius is r12.0 cm, at which the blade width bi 18.0 cm. The outlet radius is r2 24.0 cm, at which the blade width b 16.2 cm. The volume flow rate is 0.573 m/s. Assuming 100 percent efficiency. Given density of water to be 998 kg/m3 i Calculate the...
The centrifugal pump as described in Q5.8 is operating with a pre-whirl of 10° (i.e. Ui is inclined by 10° from the radial axis in the rotational direction). The centrifugal pump delivers 0.45 m3/s ofwater when it is running at the angular velocity of ω-1200 rpm Sketch the velocity triangles at inlet and exit of the impeller and hence determine the following items by assuming (a) negligible losses; and (b) Vi enters the impeller with θ| and V2 leaves with...
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