The numbers in the bottom corner are the answers. 6. A pump draws water from a well 4m below its centreline through 8m of 125mm diameterpipe. It delivers freely at 22m above the pump centreline through 60m of 75mm diameter pipe.Both pipes are "smooth".(a) What are the pressures at the pump inlet and outlet when the flow is 20L/s?(b) What energy is added to the flow by the pump?(c) What power is required to drive the pump at this flow rate if the pump efficiency is 70%?(-41.9kPa, 331kPa, 382J/kg, 10.9kW)

Answered: 6. A pump draws water from a well 4m…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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At night, water is pumped from a treatment plant reservoir through distributing piping to an elevated storage tank. Assume no other withdrawals from the system. The water surface in the supply reservoir is at 3m elevation, the lift pump elevation is 6m, the water elevation in the elevated tank is 42m. The pipe network maybe considered equivalent to 1500m of 250mm diameter. Use C=100. There is a supply of 60 Liters/sec. to the tank.a. Compute the head loss of the 250mm diameter pipe. b. Compute the pump discharge pressure required to supply a flow of 60L/s to the tank, c. Compute the slope of the energy gradient.
3. A pump is used to transport water at the rate of 0.075 m³/s from a reservoir 20 m above the pump to a free discharge 35 m above the pump. The pressure on the intake side of the pump is 150 kPa and the pressure on the discharge side is 450 kPa. All pipes are commercial steel of 15 cm inner diameter. Determine (a) The head supplied by the pump (b) The total head loss between the pump discharge and point of free discharge. Z₁=20 m 1 P₂ = 150 kPa 2 面 3 D=15 cm A P3=450 kPa 4 Free Discharge Z4 = 35 m
A pipeline 200 meters long delivers water from an impounding reservoir to a service reservoir with the difference in water levels of 20 meters. The pipeline of commercial steel is 400 mm in diameter. It has two 90 degree flanged elbows, a check valve, and an orifice (K_m= 2.5). Determine the flow through the pipe. Use a water temperature of 20 degrees Celcius.
Determine the available NPSH for the system shown in Fig. 13.38 (b). The fluid is water at 80°C and the atmospheric pressure is 101.8 kPa. The water level in the tank is 2.0 m below the pump inlet. The vertical leg of the suction line is a DN 80 Schedule 40 steel pipe, whereas the horizontal leg is a DN 50 Schedule 40 pipe, 1.5 m long. The elbow is of the long-radius type. Neglect the loss in the reducer. The foot valve and strainer are of the hingeddisk type. The flow rate is 300 L/min.
Pipe A) is 100 8-96 A certain part of cast iron piping of a water distribu- tion system involves a parallel section. Both parallel pipes have a diameter of 30 cm, and the flow is fully turbulent. One of the branches (pipe A) is 1000 m long while the other branch (pipe B) is 3000 m long. If the flow rate through pipe A is 0.4 m³/s, determine the flow rate through pipe B. Disre- gard minor losses and assume the water temperature to be 15°C. Show that the flow is fully rough, and thus the friction factor is independent of Reynolds number. Answer: 0.231 m³/s KIAU A B I 30 cm 30 cm 1000 m 3000 m 0.4 m³/s
Time: 60 Q1: pump puts 2kw in to the system. Find: b. The pressure in the pipe on section side of the pump (at C). a. Discharge. C 5 kPa L = 200 m 10m ↓ Air Water 55 marks 15 m P L = 50m D = 6 cm f = 0.025 D = 8 cm f = 0.030
A pump is used to draw water from an open reservoir to an open tank on thetop of a building. The discharge flow rate is 50 lps. The static suction head of the pump is6 m and the static discharge head is 20 m. The cast iron, schedule 40, pipe in the suctionline is 4 inches nominal diameter and 20 m long. The cast iron, schedule 40, pipe in thedischarge line is 6 inches nominal diameter and 65 m long. The fittings and valvesinstalled in the suction line are the following: two 90o standard elbow and one gate valve.For the discharge line, are the following: one check valve, one gate valve, and three 90ostandard elbows. Assuming a water viscosity of 0.001002 Pa-s, and a pump efficiency of82 %. Determine: a) the total dynamic head b) the pump brake power. Show the neat schematic diagram of pumping system. Note: Use Moody’s equation for the value of friction factor; and table for determining the equivalent length of the components.
The energy loss between points 1 and 2 is 3.40 lb-ft/lb and the pump delivers 40 gal/min of fluid having a specific weight of 60.0 lb/ft3. What is the required hp of the pump? The inside diameter for the 2-in and 3-in schedule 40 steel pipes are 2.067 inches and 3.068 inches respectively
Pls answer with complete solution . Thank you
Give the solution.
Q-3. Water at 10 °C flows from a large reservoir to a smaller one though a 5-cm diameter cast iron piping system as shown in the figure below. Determine the elevation z₁ for a flow rate of 6 liters/second. 2₁ = ? O Sharp-edged entrance, K₁ = 0.5 D = 5 cm 9 m -Control volume boundary Standard elbow, flanged, K₂ = 0.3 Gate valve, fully open K₁=0.2- 2₂ = 4 m 80 m Data: The density and dynamic viscosity of water at 10 °C are: p=999.7 kg/m³ and μ = 1.307x10³ kg/m.s. The roughness of cast iron pipe, & = 0.00026 m. -Exit, K₁= 1.06

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