Problem 3: Civic WaterworksConsider the historic fountain in Ferril Lake in Denver's CityPark. According to Friends of the Electric Fountain, it is poweredby two 125 horsepower pumps, and it can spray water up to 65feet above the lake surface.Part AAssuming the upward jet of water has a cross-sectional area of0.050 ft² and the pump has an efficiency of n = 0.60, whatelectrical power is required to achieve the full 65 ft height?Part BAssume the fountain runs for 12 hours/day and for 3 months/yearand electricity costs 10c per kilowatt-hour (kWhr). Use yourresult from Part A to calculate the annual electricity cost [S].http://t

Answered: Image /qna-images/answer/d845e280-e966-493f-9d0c-a6a7692b831c.jpg

Problem 3: Civic Waterworks Consider the historic fountain in Ferril Lake in Denver's City Park. According to Friends of the Electric Fountain, it is powered by two 125 horsepower pumps, and it can spray water up to 65 feet above the lake surface. Part A Assuming the upward jet of water has a cross-sectional area of 0.050 ft2 and the pump has an efficiency of n = 0.60, what electrical power is required to achieve the full 65 ft height? Part B Assume the fountain runs for 12 hours/day and for 3 months/year and electricity costs 10c per kilowatt-hour (kWhr). Use your result from Part A to calculate the annual electricity cost [S]. http://t

Problem 3: Civic Waterworks Consider the historic fountain in Ferril Lake in Denver's City Park. According to Friends of the Electric Fountain, it is powered by two 125 horsepower pumps, and it can spray water up to 65 feet above the lake surface. Part A Assuming the upward jet of water has a cross-sectional area of 0.050 ft2 and the pump has an efficiency of n = 0.60, what electrical power is required to achieve the full 65 ft height? Part B Assume the fountain runs for 12 hours/day and for 3 months/year and electricity costs 10c per kilowatt-hour (kWhr). Use your result from Part A to calculate the annual electricity cost [S]. http://t

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

4. A submersible pump delivers 350 gpm of water to a height of 5 ft from the ground. The pump was installed 120 ft below the ground level and a draw down of 8 ft during the operation. If water level is 25 ft above the pump, determine the pump power.
A 4in3 hydraulic motor has a mechanical efficiency of .91 and a volumetric efficiency of .83. It produces 700lb∙in of torque at 1120 rpm. System flow is provided by a piston pump that has a theoretical flow rate of 37 gpm and a mechanical efficiency of .91. The pump is driven by an electric motor with a .81 efficiency. Find the electric horsepower and kilowatts required to operate the system. What is the overall efficiency of the system?
Find the annual electricity cost based on the annual operating time of the pump system, which is (ÖN+5)*500 hours and theelectricity price of 4 TL/kWeh ÖN=5
What size pump is needed to supply 10 gpm to a cylinder when the electric motor is rotating at 1725 rpm? Assume 100% efficiency and state your answer in in3/rev to two decimal places.?
A submersible pump deliver 350 gpm of water to a height of 5ft from the ground. the pump was installed 120 ft. below the ground level and a draw down of 8 ft. during the operation, if water level is 25 ft. above the pump, determine the pump power
Use the Goulds Pump Selection System to find a pump capable of delivering at least 500 gpm against an elevation gain of 120 ft. Use 150 ft as the pump head to be safe.
A pump discharges 50 tons of water per hour to a height of 8 m, overall efficiency of the pumping system being 69%, what is the input and output power?
Draw the right diagram for the problem. Show complete solution. Water at 60 F from a lake through 500 ft if 4in ID cast iron pipe at a water turbine 250 ft below the surface of the lake. After flowing from the turbine, the water is discharged into the atmosphere through a horizontal 50 ft section of the same pipe. The turbine power output is 10hp when the water in the discharged pipe is flowing at 5 ft/s. a. What is the turbine efficiency defined as the actual power output of the turbine divided by the power output that would be withdrawn if there are no friction within the turbine? b. If the turbine were by passed, what would be the flow rate of water through the 500 ft of 4in pipe?
2. A pump draws water from a lake delivered to a height of 50 meters above the lake and encounters 15 meters of headloss. Determine the pump power requirement in Kilo-Watts to deliver a constant supply of 500 Liters per second? The correct answer has a margin of 1 from exact answer. Velocity head is neglected.
Theoretical horsepower required to pump water at 100 GPM from a larger reservoir to the surface of another reservoir 400 feet higher is?
Provide the diagram for the problem. Choose the correct answer and provide complete solution. Water at 60 F from a lake through 500 ft if 4in ID cast iron pipe at a water turbine 250 ft below the surface of the lake. After flowing from the turbine, the water is discharged into the atmosphere through a horizontal 50 ft section of the same pipe. The turbine power output is 10hp when the water in the discharged pipe is flowing at 5 ft/s. A. What is the turbine efficiency defined as the actual power output of the turbine divided by the power output that would be withdrawn if there are no friction within the turbine? a. 86%b. 65%c. 77%d. 50% B. If the turbine were by passed, what would be the flow rate of water through the 500 ft of 4in pipe. a. 45 lb/sb. 37 lb/sc. 52 lb/sd. 29 lb/s
A 10-hectare rice land is to be irrigated at the peak water requirement of 10 mm/day. The source of water is pump from a river with outlet discharge directly to the irrigation canal. If the pump operates at 10 hours per day, what should be the capacity of the pump? What should be the size of engine if the total dynamic head is 10 meters. Assume pump efficiency to be 80 percent and engine to be 75 percent.