2. Determine the water horsepower and the mechanical efficiency of a centrifugal water pump which has an input of 2611watts, if the pump has an 8 in.nominal size suction and 6 in.nominal size discharge and handles 150 gpm of water at 150 deg.F(specific volume is 0.01634 ft3/Ibm). The suction line gage shows 4 in.Hg vacuum, and the discharge gage shows 26 psi. Thedischarge gage is located 2 ft above the center of the discharge pipe line and the pump inlet and discharge lines are at the sameelevation.

2. Determine the water horsepower and the mechanical efficiency of a centrifugal water pump which has an input of 2611 watts, if the pump has an 8 in.nominal size suction and 6 in.nominal size discharge and handles 150 gpm of water at 150 deg.F (specific volume is 0.01634 ft3/lbm). The suction line gage shows 4 in.Hg vacuum, and the discharge gage shows 26 psi. The discharge gage is located 2 ft above the center of the discharge pipe line and the pump inlet and discharge lines are at the same elevation.

2. Determine the water horsepower and the mechanical efficiency of a centrifugal water pump which has an input of 2611 watts, if the pump has an 8 in.nominal size suction and 6 in.nominal size discharge and handles 150 gpm of water at 150 deg.F (specific volume is 0.01634 ft3/lbm). The suction line gage shows 4 in.Hg vacuum, and the discharge gage shows 26 psi. The discharge gage is located 2 ft above the center of the discharge pipe line and the pump inlet and discharge lines are at the same elevation.

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

A pump delivers 20 cfm of water having a density of 62 lbs. per cubic foot. The suction anddischarge gage reads 5 inches Hg vacuum and 30 psi respectively. The discharge gage is 5 ft abovethe suction gage. If pump efficiency is 70%, what is the motor power?
2. A centrifugal pump installation draws water from an underground well whose free surface is 50 m below ground level. Water is pump to a reservoir 6 m above ground. Suction pipe diameter is 150 mm and the discharge pipe diameter is 100 mm. The required capacity of the pump is 250 liter/sec. If the pump efficiency is 82%, determine the required brake power for the motor drive. a. brake power Answer : _______________ kW
The BEP for a pump operating at 1750 RPM with a 13-inch impeller is 1000 gpm, 150 ft. Using the pump affinity laws, determine what this pump head would correspond to if pump speed were changed to 2500 RPM.
in designing a ram pump, make computations where the Source Elevation = 50 meters. Target User Elevation = 85 meters. Target output = 230 Liters/min
A pump delivering 5000 g.p.m. of 60° F. water has a 16-in.-diameter suc- tion pipe and a 14-in. discharge pipe. The suction vacuum gage, which is 3 in.) below the pump centerline, reads 5 in. of mercury (below atmospheric pressure). The discharge gage, which is 18 in. above the pump centerline, reads 10.6 lb. per sq. in. ga. What is the head of the pump? The specific gravity of mercury is 13.6.
A centrifugal pump has NPSH required of 20 ft. The water temperature is 90 deg. F and the friction loss at suction is 1.6 ft. The pump takes water from an open tank below the pump centerline. Determine the maximum static elevation at suction if the pump is located at 1500ft above sea level. (Note: @90 deg.F: Saturation pressure = 0.69 psia and specific volume = 0.01608 cubic ft/lb). Determine the maximum suction elevation in feet below pump centerline 9.141 8.941 5.248
Compute the water horsepower and electrical power needed for the pump and motor with the following assumptions: a.) Fluid is oil with specific gravity of 0.8 (specific gravity = density of oil/density of water) b.) oil needs to be pumped at a height of 20m, neglect friction loss c.) the volumetric flow rate of the pump = 20 GPM d.) assuming the following efficiences, pump efficiency = 75%, motor efficiency = 90%. NEEDS COMPLETE SOLUTION, AS SOON AS POSSIBLE. THANK YOU.
A centrifugal pump has a constant speed of 1500 RPM and has a head of 75 m. what is the effect of the head of the pump if the impeller diameter is reduced from 280mm to 230mm A. 72.6m B. 65.6m C. 25.6m D. 50.6m
A 20-KW motor with 80% efficiency drives a centrifugal pump delivery 0.08m3/sec against a head of 20m. Determine the pump efficiency
ASAP A centrifugal pump that is used in pumping water to a tank operates at a rate of 1 gpm. The pump is driven directly by an electric motor with an input power of 1.5 hp running at a speed of 1700 rpm. The total head loss of the system is 10 m. If the motor drives the pump at 2200 rpm, what is the rate of flow of the pump?
A centrifugal pump installation delivers water at the rate of 50 kg/s. The suction pressure gage reads 60 kPa gage and located 0.95 m below the pump centerline. The discharge pressure gage reads 400 kPa and located 1.5 m above the pump centerline. Suction pipe diameter is 350 mm and discharge pipe is 300 mm. If the overall pump efficiency is 75%, determine the brake kW required by the installation. a. brake power Answer : _______________ kW
The rate of flow of water in a pump installation is 60.6 kg/sec. The intake static gage is located 1.22m below the pump center line and reads 68.95 Kpa gage; the discharge static gage is 0.61m below the pump centerline and reads 344.76 Kpa gage. The gages are located close to the pump as much as possible. The areas of the intake and discharge pipes are 0.093m^2 and 0.069 m^2, respectively. The pump efficiency is 70%. Take the specific gravity of water as 0.99. What is the hydraulic horsepower?