The pump in the figure is used for washing the boiler pipes in a thermal power plant. When the pump takes 20 degrees Celsius water at a flow rate of 79 m3/h from the tank, which is open to the atmosphere 5 m below the pump level, and discharges it to the atmosphere through a nozzle with a 4 cm outlet diameter, a total head loss of 440 kPa occurs. The diameter of the pipes used in this system is 15 cm and the density of water at 20 degrees Celsius is 998 kg/m3. The pump's own height is neglected.

The pump in the figure is used for washing the boiler pipes in a thermal power plant. When the pump takes 20 degrees Celsius water at a flow rate of 79 m3/h from the tank, which is open to the atmosphere 5 m below the pump level, and discharges it to the atmosphere through a nozzle with a 4 cm outlet diameter, a total head loss of 440 kPa occurs. The diameter of the pipes used in this system is 15 cm and the density of water at 20 degrees Celsius is 998 kg/m3. The pump's own height is neglected.

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

The owners of a smallholding water their vegetable garden using collected rainwater from atank. Thetankhasadiameterofbm,itisam tall and sits on a 6 m tall stand. The inner diameter of the hose is c cm, and the hose is (20 +5d) m long. If the tank was initially filled to the brim, how long will it take before the tank is empty? Assume that there is a single ball valve (K = 0.05) in the line, and that the spray nozzle has a hole diameter that is 20 % of the diameter of the hose. You may ignore all other losses in the nozzle. a = 9 b = 8 c = 7 d = 1 Hint: Use an Excel spreadsheet or C program for the calculations.
A handheld bicycle pump can be used as an atomizer to generate a fine mist of paint or pesticide by forcing air at a high velocity through a small hole and placing a short tubebetween the liquid reservoir and the high-speed air jet whose low pressure drives the liquid up through the tube. In such an atomizer, the hole diameter is 0.3 cm, the vertical distance between the liquid level in the tube and the hole is 10 cm, and the bore (diameter) and the stroke of the air pump are 5 cm and 20 cm, respectively. If the atmospheric conditions are 20°C and 95 kPa, determine the minimum speed that the piston must be moved in the cylinder during pumping to initiate the atomizing effect. The liquid reservoir is open to the atmosphere
[CE Hydraulics] 5. For the case of turbulent flow in rough pipes, does the friction factor depend on the Reynolds number? Why?
Assume a horizontal shaft handling water at 65 deg C (Pv=2.503 KPa, Density=980.5 m3/kg). The suction nozzle is 1.64 m below the pump centerline and the pressure gauge reading at this point is 221Kpag. Determine the NPSHa if the head loss is 0.94 m.
Throughof the system that showsof the figure circlesa flow rate of 100L/slight oil(s=0.72), which ispowered by apump it upsupplies apower of 5.0 kW andworks with a85% efficiency.determine the timegauge mmdifferential
In Fig. the pipe entrance is sharp-edged. If the fl ow rateis 0.004 m3/s, what power, in W, is extracted by the turbine?
ME Board - October 2002 Water is to be raised to a height of 25 meters at 20 kg/s. Inlet diameter is 16 cm, exit diameter is 12 cm and heat loss is 2 kW. Determine the power input to the pump.
Q3// A 180 cm-diameter tank is 4 points initially filled with water 220 cm above the center of a sharp edged 15 cm diameter orifice. The tank water surface is open to the atmosphere, and the orifice drains to the atmosphere. Neglecting the effect of the kinetic energy correction factor, calculate (a) the initial velocity from the tank and (b) the time required to empty the tank. Does the loss coefficient of the orifice cause a significant increase in the draining time of the tank?
A fully-filled open storage tower of height 32 m and diameter 3.0m supplies water to a house. A horizontal pipe at the base of the tower has a diameter of 2.54cm. To satisfy the needs of the home, the supply pipe must be able to deliver water at a rate of 0.67 gal/s. a. If water were flowing at the maximum rate, what would be the pressure in the horizontal pipe?b. A smaller pipe, of diameter 1.27 cm supplies the second floor of the house, a distance of 7.2 m above the ground level. What are the flow speed and water pressure in this pipe?
Water with density of 998 kg/m3 flows through an inclined pipe with diameterof 8 cm. At section A, pressure and elevation level are 175 kPa and 23.5 m,respectively. Meanwhile, pressure and elevation level at section B are 255 kPa,and 8.5 m, respectively. Determine the head loss and show direction of flowingwater.
The pump , running at 880 r/min, is topump water at 20°C through 75 m of horizontal galvanizediron pipe. All other system losses are neglected. Determinethe flow rate and input power for (a) pipe diameter =20 cm and (b) the pipe diameter found to yield maximumpump efficiency.
EthanoL at 20c(8 = 789 kglm, M=00012 152/m.s) flow at a horizontal cast-iren pipe with L 12m 125 apm through and d= 5 cm , Neglecting entrance effect > estimaite A- the wall shear stress 3- tu precent reduction in friction factor if the pipe walls are polished to a smooth surface. ?