A water main of 1.5 m diameterand 20 mm thick is subjected toan pressure of 1.5 N/mm2.Calculate the circumferentialstress induced in the pipe. *60.85 N/mm2O 78.65 N/mm2O 56.25 N/mm268.45 N/mm2

Given that Diameter (d)=1.5m=1500mm Thickness(t)=20mm Pressure(P)=1.5 N/mm2 Circumferential stress…

Answered: A water main of 1.5 m diameter and 20…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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The ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 10 m3 / hr. The pipe length is 35m and there are 2 elbows. Calculate the power requirements of the pump. The properties of the solution are density 975 kg / m3 and viscosity 4x 10-4 Pa s. a. Reynold number = Answer b. Loss of Energy along the straight pipe = Answer J / kg. c. Losing Energy at curves = Answer J / kg. d. Total energy to overcome friction = Answer J / kg. e. Energy to increase water according to height = Answer J / kg. f. The theoretical energy requirement of the pump ethanol / second = Answer J / kg. g. Actual pump power requirement = Answer watt.
Problem 3 As shown in the figure below, water (kinematic viscosity of water v =10m's) flows out of a reservoir (minor loss coefficient at A, KL = 0.7) into a system of two pipes discharging into another reservoir. The first pipe, which goes from A to B has a diameter D=0.12m and is 12 m long. The V %3D second pipe, which goes from B to C has a diameter D2=0.32m and is 13m long. The Darcy-Weisbach friction factor is the same for each pipe and is approximately equal to Hi 2=0.017. The water level Pn into the upstream reservoir is H,=10 m and the volumetric flow rate in the Datum z=0 system is Q=0.02 m³/s. 3.1) Sketch the Hydraulic Grade Line (HGL) and the Energy Grade Line (EGL) considering all losses (abrupt expansion K, = (1- ) %3D Compute the gauge pressure Pn read by the Bourdon manometer right downstream of the sudden expansion (assume the centre of gravity of the manometer is located at z=2.5m). 3.2)
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The ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 8 m3/hour. The length of the pipe is 35m and there are 2 elbows. Calculate the pump power requirement. The properties of the solution are density 975 kg/m3 and viscosity 4x 10-4 Pa s. a. Reynolds number = b. Energy Loss along a straight pipe = J/kg. c. Energy Loss in turns = J/kg. d. Total energy to overcome friction = J/kg. e. Energy to raise water to height = J/kg. f. Theoretical energy requirement of the pump kg ethanol/second = J/kg. g. Actual pump power requirement = watt.
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3:'A hydraulic oil is flowing in a horizontal drawn steel hydraulic tube ( ɛ = 1.5 x 10-6m) with an ID of 0.047m. A pressure difference of 68 kPa is || observed between two points in the tube 30 meters apart. The oil has a specific gravity of 0.90 and a dynamic viscosity of 3.0 × 10¬³P ·s. Calculate the velocity of the flow of oil using Method Il-C iteration.
Question 8 download image D The water in a large tank exits through a horizontal circular pipe of diameter D=0.01m and length L=94m. The centre of the exit of the pipe is h=1.0m below the water surface. We can assume that the flow entrance to the pipe is smooth so that there are no minor losses. The flow in the pipe is laminar, the friction factor can be assumed constant and can be found from h fD=64/Rep where the Reynolds number is based on the pipe diameter and mean flow speed in the pipe. Taking frictional losses into account, solve the resulting quadratic equation to calculate the speed of the flow out of the pipe. Give your answer in m/s to 2 decimal places. Use: kinematic viscosity given by v=0.00000114 m²/s density of water given by 1000 kg/m3 acceleration due to gravity of 9.81 m/s² A Moving to another question will save this response. >>
Answer the problem correctly and provide complete and readable solutions. If you can explain the process (briefly), please do so. Thank you!
4. A venturi meter with a 10.16 cm throat is installed in a 15.24 cm pipe which is inclined upward at an angle of 45 degrees to the horizontal. If the distance between the pressure tape along the pipe is 1.5 m, the differential pressure is 70kPa, and the water temperature is 70°C, what is the discharge of water in m3/sec?. Assume coefficient of 0.985.
The loss coefficients for the pipe shown is: up to A it is 0.8, from A to B it is 1.2, from B to C it is 0.8, from C to D it is 2.2. Estimate the flow rate and the pressures at A, B, C, and D. The elevations are shown. al 10m al. 3m O P₁ B U Solution: 1. The energy equation can be simplified to 02₁-22= 1 el. 12 m P2 D 3 cm dia. 4. Pressure at A, PA= m; 5. Pressure at B, PB= m; 10 28 2g o The total energy loss occurred through this system is calculated as: h= o Relationship between Upipe and Vexit 2. Thus, velocity in the pipe is Upipe 3. Calculate the flow rate Q= -m; = is:-Vexit= m³/s; m/s; Upipe i kPa; (energy equation from surface to A) kPa; (energy equation from surface to B) Upipe 2g
The above pipe is exchanged for a parallel pipe with a cross sectional area of 0.3m2 and is 20 m long, with a surface roughness coefficient of 0.005. The dynamicviscosity of the water is 1.002 x 10-3 Ns/m. Find the Reynold’s number of the flowand use Haarland’s formula to find the friction coefficient and Darcy’s formula todetermine the frictional pressure loss. Then determine the pressure at the outlet ofthe pipe.

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A water main of 1.5 m diameter and 20 mm thick is subjected to an pressure of 1.5 N/mm2. Calculate the circumferential stress induced in the pipe. * O 60.85 N/mm2 O 78.65 N/mm2 O 56.25 N/mm2 O 68.45 N/mm2