In the figure shown, it is desired to pump 40 L/s of water from a natural stream to a small reservoir. The stream is connected to the small reservoir using 3 pipes with properties provided in the table. The overall pump efficiency is 70%. Neglect minor losses. a) Calculate the flow rates in pipes 2 and 3. b) Calculate the mechanical head supplied by the pump to the flow. c) Compute the electric power input required by the pump. Pipe Length Diameter Friction (m) (mm) Factor 1 1000 250 0.015 El. 90 m 2 500 160 0.022 600 200 0.025 El. 30 m 3 3

In the figure shown, it is desired to pump 40 L/s of water from a natural stream to a small reservoir. The stream is connected to the small reservoir using 3 pipes with properties provided in the table. The overall pump efficiency is 70%. Neglect minor losses. a) Calculate the flow rates in pipes 2 and 3. b) Calculate the mechanical head supplied by the pump to the flow. c) Compute the electric power input required by the pump. Pipe Length Diameter Friction (m) (mm) Factor 1 1000 250 0.015 El. 90 m 2 500 160 0.022 600 200 0.025 El. 30 m 3 3

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 water pump develops a total head of 200 ft. The pump efficiency is 80% and the motor efficiency is 87.5%. If the power rate is 1.5 cents per kw-hr, what is the power cost for pumping 1000 gal/hr?
A mini-hydroelectric power plant is under a head of 275 feet. The turbine efficiency is 0.85 and the generator efficiency is 0.80. If the turbine speed is limited to 450 rpm, calculate the generator kW output. Complete solution with given please. Thanks
For the hydraulic system of Figure, the following data are given: The pump is adding2.984kW to the fluid.(a) Pump flow is 0.00158 m3. (b) The pipe inside diameter is 0.01905m.(c) The specific gravity of the oil is 0.9.(d) The oil tank is vented to the atmosphere.(e) The head loss HL between station 1 and 2 is 12.19m.(f) The elevation difference between stations 1 and 2 is 6.096m.Find the pressure available at the inlet to the hydraulic motor(station 2).
A certain hydropower plant is being supplied by river flow of 900 cubic ft/sec and the head on the site is 200 ft. To develop maximum capacity it was proposed to install 2 turbines, one of which is 1.5 times the capacity of the other. Both turbine units are assumed to have efficiency of 85%. Determine (a) the total power developed, (b) what is the power developed by turbine #1 and by turbine #2 and (c) Rotative speed of each turbine unit assuming specific speed equal to 70 rpm.
A pipe handles a flow rate of 0.002 m³/s. Find the minimum inside diameter that will provide an average fluid velocity not to exceed 6.1 m/s.
In the system, 900 L/min of oil is pumped with (s=0.92), from an underground storage tank to the first stage of a processing system. If the loss in the suction line is 1.5m and the loss in the discharge line is 4.5m. The suction line is 2.5” and the discharge line is 1.5”. Determine a) the outlet pressure in psi of the pump. b) The power in hp of the pump
As seen in Figure 3 below, the water from the tank 1 is pumped to the tank 2 with a flow rate of 5,664 liters/s, passing through a pipe with a diameter of 50.8 mm and a length of 121.92 m. Some of the local losses in the system are also shown on the figure. Calculate the effective power of the pump by taking the relative roughness ɛ / d = 0.001 Note: For all questions, pwater = 1000 kg/m³, g=9.81m/s^2 , the kinematic viscosity of water is 1.0219x106 m²/s and the questions can be solved by accepting the values that are not given.
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.
Water at 60°F is pumped from a reservoir to the top of a mountain through a 6-in. Schedule 120 pipe at an average velocity of 12 ft/s. The pipe discharges into the atmosphere at a level 3,000 ft above the level in the reservoir. The pipeline itself is 4,500 ft long. If the overall efficiency of the pump and the motor driving it is 70 percent and the cost of electric energy to the motor is 4 cents per kilowatt hour, what is the hourly energy cost for pumping this water?
Looking for the calculations / unit analysis for ... 1.) Inlet Potential Energy 2.) Outlet Potential Energy 3.) Pump Energy (Ep) 4.) Friction Loss in (1" dia pipe) Thanks
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?
A centrifugal pump having an overall efficiency of 75%, delivers 1850 liters of water per minute to a height of 20 m through a pipe 10 cm diameter and 100 m long. If f=0.012, calculate the hp to drive the pump.