Q2. Assume the pump has the performance plotted in Figure Q7Efficiency (%)10080604020CTotal head (ft)200,6045150Head100 3050 1500Efficiency5002000Power1000400015002000kW604530152500 (gal/min)8000 10000 (l/min)hp80TT6040206000Pump capacityFigure Q2Assume the pump was operating at a rotational speed of 1750 rpm for water y = 9810 N/m^3 and thatthe impeller diameter was 330 mm. The power required for this pump is 37 KW and the total head is 40m. find the performance of pump at a speed of 1250 rpm. Where 1 m^3-1000 L.Power

Given:The initial rotational speed of the pump:And initial total head available:Final rotational…

Q2. Assume the pump has the performance plotted in Figure Q7 Efficiency (%) 100 80 40 20 Total head (ft) 200,00 150 Head 45 A 10020 0 50 15 0 Efficiency 500 2000 Power 1000 1500 4000 6000 Pump capacity 2000 KW 60 45 30 15 2500 (gal/min) 8000 10000 (l/min) hp 80 60 40 20 Power Figure Q2 Assume the pump was operating at a rotational speed of 1750 rpm for water y = 9810 N/m^3 and that the impeller diameter was 330 mm. The power required for this pump is 37 KW and the total head is 40 m. find the performance of pump at a speed of 1250 rpm. Where 1 m^3-1000 L.

Q2. Assume the pump has the performance plotted in Figure Q7 Efficiency (%) 100 80 40 20 Total head (ft) 200,00 150 Head 45 A 10020 0 50 15 0 Efficiency 500 2000 Power 1000 1500 4000 6000 Pump capacity 2000 KW 60 45 30 15 2500 (gal/min) 8000 10000 (l/min) hp 80 60 40 20 Power Figure Q2 Assume the pump was operating at a rotational speed of 1750 rpm for water y = 9810 N/m^3 and that the impeller diameter was 330 mm. The power required for this pump is 37 KW and the total head is 40 m. find the performance of pump at a speed of 1250 rpm. Where 1 m^3-1000 L.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Q1: Find the dimensions of the centrifugal pump (diameter and width) if you know that the velocity of impeller is (20 m/s) and running with (900 r.p.m), whirl velocity is (5 m/s) and discharge is (0.15 m3/s). Jo 10:52
Q1/ liquid is pumped from a ground level reservoir to an overhead tank through a 5 cm ID pipe as shown in Fig. (1): i. What pressure developed by the pump to 45° elbow 8 m Fig. (1) Globe valve Tank 5 m supply water to the tank at the rate of 245 I/min? ii. What is the power required for the pump, if the pump is only 62% efficient? iii. Calculate the available NPSH. If the pump required 12 m NPSH is it suitable to prevent cavitation for this system? why? Given that: u = 0.0016 Pa.s; p 850 kg/m', e/d 0.0035, (Le/d) of Globe valve (open) = 240 (Le/d) of 45° ēlbow = 24 and Pv = 36.6 kPa 25 m 45° Reservoir 45° elbow
1 QUESTION 1 Consider a desired pump operating condition which adds 35 psi at a flowrate of 500 gpm to water (p= 62 11m/ft²³) Ignore any changes in Kinetic or potential energy and Tassume isothermal flow C.e. internal energy is constant, this is the normal assumption we make when analyzing fluid flows in piping systems). Apply the energy balance only across the pump with full energy Balance and simlifying to solve for the pump, Starting head symbolically. Then begin careful of units, Solve for pump head in feet. GIVEN: 35psi 500 gpm p=62 1bm/3 XA. 10.5 A B. 100.8 ft C. 50.1 ft D. 80.7f 35 500 62 (32.2) + 2(32.2) 35 + 500
5. Write down the Benoulli equation and explain the meaning of each terins 6. Water is flowing through a hole at the bottom of large tank filled with water. Tank is open to atmosphere. The level of water in the tank is 20 m Calculate velocity of flow. Assume steady flow and neglect viscous effects. 20 m 2 Tig.1 F. 1.0 P-100 kPa Handwriting not allow please
Calculate the NPSHA in ft for the following configuration of a pumping system. Pv=924.8Kpaa ... Vessel Pressure = 134.6 psia Minimum Operable Liquid Level 15 ft Water, 350F Datum Suction Line Losses = 5 ft (1.52m)
Q1. The pump with 96.52 cm in diameter characteristics shown in figure below is used to pump water to the system. Neglecting local losses, www a) Calculate flow rate and pump power. b) A new pump from the family with 60 cm in diameter is produced. It oparates with the speed of n=1500 rpm and used to pump gasoline (SG=0.86). Estimate discharge, head and power of the new pump. Note Pipe is cast iron with 0.5 m in diamater and 900 m in length. Fluid is water with density 1000 kg/m³. Take f=0.02 in the analysis. www (a) hil n=710 d'dak 72m 120 7.5 ENPY 105 - 105.4 cm çap 4.5 90 96.52 cm çap 75 - 88.9 cm çap 60 48m 45 30 0.25 0.50 0.75 1.00 1.25 1.50 1.75 Debi ms ENPY m 98 %88 1100 kW 900 kW 750kW Yak, m
1. Find the power input required by the pump if pump efficiency is 75%. Pa 60°F Pgs Pga Za- 50' (15.24 m) Zga = Zg. Ze- 6 (152.4 mm) Z, - 5' (1.524 m) ho - 25' (7.62 m) h3' (0.9144 m) 60°F H20
3. Based from the pump performance curve below, calculate the following: a) Specific speed b) Suction Specific speed. 250 100 MCSF 25.12 in Maximum 200 80 21.77 in Rated 150 60 Efficiency 20.08 in Minimum 100 40 NPSH3 50 2 20 50 100 150 200 250 300 350 400 450 Head - m NPSH3 - m Efficiency
a. the total dynamic head in meters b. the water power in kW c. the motor horsepower if the pump efficiency is 66%
A pump has a specific speed of 45 and 600rpm when it delivers 0.01m3/s. Find the head developed by the pump in ft. Ans. 926.07
Q-- Consider the following data relating toperformance of a centrifugal pump:speed 1200 rpm, flow rate 30 L/s, head 20 m, and power 5 kW. If the speed of the pump is increased to 1500 rpm, assuming the efficiency isunaltered, Find the new flow rate and head.
-Example the values. asystem total head. against for the initial condition, show below - give the Lallowiny data dynamic uiscosity of liquid Calculate capacity curve density S-1200 kgim3 Static head on Suction Side 7S-3m Static heac on discharge Side Zd= 7m inside diameter of pipe di = o.052m -pipe roughress E3D0.00045m. gas pressure aboue the liquid in the tank Side of the pump the Suction Ps= atmospheric pressure. gas pressure above the liquicd in the tank on discharge side of the pump. the dund Pd= atmesperic pressure