Figure 5 shows a pump connected to a large tank of water. Water flows out of the tank through the pump into a galvanized iron pipe of diameter D = 80 mm at a length, L= 40 m. At the end of the pipe, water exits through a nozzle of diameter D2 = 50 mm. With the height of water h, the pump adds 30 kW of power to the water resulting in a volumetric flowrate of Q=0.05 m³/s. Ignore the length of the nozzle and assume that the velocities are uniform. By using the same height of water and pipe, explain and justify with your calculation, which parameter(s) will be affected if the pump is to be removed from the system.

Figure 5 shows a pump connected to a large tank of water. Water flows out of the tank through the pump into a galvanized iron pipe of diameter D = 80 mm at a length, L= 40 m. At the end of the pipe, water exits through a nozzle of diameter D2 = 50 mm. With the height of water h, the pump adds 30 kW of power to the water resulting in a volumetric flowrate of Q=0.05 m³/s. Ignore the length of the nozzle and assume that the velocities are uniform. By using the same height of water and pipe, explain and justify with your calculation, which parameter(s) will be affected if the pump is to be removed from the system.

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

Water flows from tank A to tank B, as shown in Figure Q4. By neglecting all minor losses and assuming friction factor of 0.01 for all pipes, find the flowrate into tank B when the valve is opened to allow water to flow into tank C. Elevation = 2 15 m Diameter of each pipe = 0.10 m 60 m20 m 55 m Elevations=0
The cast iron pipe shown in Figure Q2 carries water at a rate of 200 liters per minute from the main pipe A. The point A is at an elevation of 6 m from the datum and the reservoir is on elevation of 30 m from the datum. The pipe is 5 cm in diameter and 75 m long. There are two 90° bends (each having a loss factor of K=0.9) and an open globe valve with a loss factor of K=10. The pipe has sharp edged entry (K=0.5) and exit (K=1). Determine: a) The velocity of fluid flow in the pipe in m/s (5marke) b) The friction factor c) The pressure losses including minor losses d) The gauge pressure in pipe A Water (K=1) Open globe valve (K=10) Elevation = 30 m 90 degree bends (K=0.9) (K=0.5) 5 cm cast iron pipe Elevation = 6 m Figure Q2
The flow rate of the water pump shown in the figure is equal to Q and the rotor transfers an E energy to the water flowing through the pump. Knowing that the difference between the levels of the surfaces of the reservoirs is H, determine the head and power losses across the system.
Problem 2. An engineer helps with the design of a rotating spray for a dishwasher. The spray has 4 identical jets spaced equally around the rim of a disc. Water enters though a hollow shaft and then flows radially out to the jets. The nozzle of the jet has a diameter D of 0.3 cm and makes an angle a = I (3 with the horizontal plane of the disc(See figure). The jets are oriented so that v2r=0. If the total flowrate Q=50 mL/s and the disc has radius R= 7.5 cm, determine the torque in dyne-cm required to keep the disc from rotating. Water jet R. Water flows radially inside dise to jet Water in View from top View from side
QUESTION 5 5.1 A pipe of diameter 300 mm and length 3 000 m is used for the transmission of power by water. The total head at the inlet of the pipe is 400 m. Find the maximum power available at the outlet of the pipe. Take f =0.005. 5.2 The head of water at the inlet of a pipe of length 1500 m and diameter 400 mm is 50 m. A nozzle of diameter 80 mm at the outlet, is fitted to the pipe. Find the velocity of water at the outlet of the nozzle if f = 0.01 for the pipe.
The pump whose characteristics are: H, = 80 – 60ov² n = -1500V² + 700V Elevation = 230 m | (2) (1) Elevation = 200 m 1000 m pipe 40 cm in diameter Pump Figure Q3 is used to pump water (µ=0.001kg/ms) a distance of 1000 m between two reservoirs the elevations of which are shown in Figure Q3 and remain constant. The pipe is 40 cm diameter commercial steel (ɛ=0.046 mm). Ignoring minor losses and assuming fully turbulent flow. Determine a) The friction factor b) The pressure loss expressed in terms of the volumetric flow rate c) The system losses (use Bernoulli) d) The volumetric flow rate e) The efficiency at the operating point
Calculate the flow rate of the system by accepting the fluid passing through the reservoir-pipe system shown in the figure as ideal. As D1 = 0.5 m, D2 = 0.30 m and D3 = 0.40 m, determine the velocity heights in each pipe. Calculate and show the water levels in the pressure gauge pipes (it will be taken into account that the pressure gauge pipes are externally connected to the 1st and 2nd pipes, but the end of the pressure gauge pipe on the 3rd pipe is turned to the flow direction). Draw the relative energy and relative piezometer lines of the system.
Oil is being pumped from an Open Tank A (elev = 110m) to another Open Tank B (elev = 220m) with a total head loss of 15m of Oil. The pump has a power rating of 210kW and an efficiency of 65%. Pipe 1 (D = 200mm) connects Tank A and the pump while Pipe 2 (D = 150mm) connects the pump and Tank B. Calculate the pump head, velocity of flow in Pipe 1, mass flowrate in Pipe 2, power output of the pump and volumetric flowrate of oil.
5.1 Water flows through the pipe reducer shown in the figure. If the elevation difference in the Piezometer Tubes reads Ah, find the volume flow rate Q in m3/sec. The diameters of the inlet and exit are D and d respectively. Take the following data: Ah = 1.35 m D = 240 mm d - 60 тm Ah
Question 8 Two reservoirs are connected by a pipe whose total length is 360m.From the upper reservoir the pipe is 300mm in diameterfor a length of 150m and the remaining 210m is 450mm in diameter.The difference in water levels between the two reservoirs are 8m.Take f=0.006 for the smaller pipe and f=0.005 for the larger pipe.If all the changes in pipe sections are sharp and sudden, calculate the flow rate which can be delivered.
The hydrostatic transmission shown in the figure, is used to move a pulley attached to the shaft of the hydraulic motor. The actual flow rate of the hydraulic pump is 10 gpm, and the actual flow rate of the hydraulic motor is 7.5 gpm. The relief pressure is 2500 psi and the pressure in the inlet port of the hydraulic motor is 1000 psi. Calculate the power loss across the relief valve.
A uniform cross-sectional water tank is placed in a cart as shown in figure. The cart is mounted on frictionless rollers and the water is discharged to atmosphere through an attached nozzle. However, the the water level the tank is maintained at a constant height h above the nozzle by an external supply at a volumetric flow rate Q. The cart is restrained from moving by the cable seen in figure . The mass of the tank, cart and water is M. In terms of the parameters h, Aj and the water density ρρ. derive expressions for (a) the volumetric flow rate Q and (b) the tensile force T in the cable. (c) At time t = 0, the cable is cut, and the cart begins to move to the left at a velocity Vc{t} that increases with time. Derive an expression for Vc{t}.