● ● ● ● ● ● ● a) b) Example A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: e = 0.15 mm (absolute roughness), L=1500 m (length of pipe), Q=40 1/sec (design flow), Eb=2.1 x 10° N/m² (bulk modulus of water), Ep=2.1 x 10¹¹ N/m² (modulus of elasticity of cast iron), ε = 0.25 (poisson's ratio). p = 1000 kg/m³ T=15° C. Ho = 1 Valve Find AP, AH , f, and f, due to the water hammer produced for the following cases: Assuming rigid pipe when t. = 10 seconds, and to = 1.5 seconds. Assuming elastic pipe when t = 10 seconds, and to = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints.

● ● ● ● ● ● ● a) b) Example A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: e = 0.15 mm (absolute roughness), L=1500 m (length of pipe), Q=40 1/sec (design flow), Eb=2.1 x 10° N/m² (bulk modulus of water), Ep=2.1 x 10¹¹ N/m² (modulus of elasticity of cast iron), ε = 0.25 (poisson's ratio). p = 1000 kg/m³ T=15° C. Ho = 1 Valve Find AP, AH , f, and f, due to the water hammer produced for the following cases: Assuming rigid pipe when t. = 10 seconds, and to = 1.5 seconds. Assuming elastic pipe when t = 10 seconds, and to = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints.

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

2. As shown in the figure, two hydraulic cylinders are connected in series and driven by a hydraulic pump. It is known that the two hydraulic cylinders have the same size, piston diameter D=90mm, piston rod diameter d360mm, load F=F2=10KN, hydraulic pump output flow q=25L/min. Calculation: Regardless of the loss, the output pressure n. and nicton velocity v. and V2 of the hydraulic pump. | -Fp Figure 11
7. a. If the blood viscosity is 2.7x10-3 Pa.s, length of the blood vessel is 0.35 m, tubular resistance of a blood vessel is 38.5 GPa-s/m3 , What is the radius of the blood vessel in mm?b. If the blood pressure at the outlet of the above vessel is 30 mm Hg and the flow rate through the vessel is 100 ml/min, find the inlet pressure in mm Hg. Density of mercury = 13,550 kg/m3, acceleration due to gravity = 9.61 m/s2
Water discharge flow rate of 0.002 m3/s is delivered through the 20 mm commercial steel pipe? €=0.25 Water dynamic viscosity µ = 0.001 kg/m. s Water density 1000 kg/m3 For minor losses, take K for the Entrance: 0.1 Exit: 0.2 Valve 0.8 575 Use your last three digits of your ID number for the pipe length L m h L = D= 20 mm m Valve L.
QI/ A (300mm) diameter of pipe, if the discharge (90 L/sec), nozzle diameter (75mm) and pipe length from (1 to 2) was (100m) Determine the length of pipe from (2 to 3), and the pressure at point (2). (e=0.026mm, v =1.13* 10“ m²/sec). Fig(1). 6m 23m Fig.(1) Nozzle
4. Piping system as shown in the figure. Determine the amount of force required to pump 100 L/s of fluid (S=0.85,n=10-5 m^2/s).The pump operates with efficiency.Related n = 0,75. 'data given in the picture. Line 1: L=10 M,D=0.20 M,e=0.05mm ,K1=0.5 ,Kv =2 Line 2: L=500 M,D=0.25m ,e=0.05 mm , Ke=0,25 ,K2=1 el 20 m K, Line 2 el 10 m Line 1 K.,
A fluid is being pumped through a pipe. The density of fluid is 872 kg/m³. The viscosity is 2.8x102 Pa.s. The velocity in the pipe is 5.9 m/s. If the Reynolds number is 2100. a- What is the pipe cross-sectional area? b- If the pipe cross-sectional area increased 1.5 fold under same Reynold number, density and viscosity, what is the new velocity?
3. A seamless steel pipe carries 2000 m³ of steam per hour at a pressure of 1.2 N/mm². The velocity of flow is 28 m/s. Assuming the tensile stress as 40 MPa, find the inside diameter of the pipe and its wall thickness. [Ans. 160 mm; 5.4 mm] 4. Compute the dimensions of a flanged cast iron pipe 200 mm in diameter to carry a pressure of 0.7 N/mm².
Starting from Tw find T, 2 1 3 and proof the following equation f and Re using dimensional analysis: Fully Developed Pipe Flow Friction Factor • Tw = func(p, V, µ, D, ɛ) 8 = average roughness of the inside wall of the pipe pVD Re = 8Tw • I-analysis gives II1 = f %3D pV? II2 = Re €/D = roughness factor %3D Il3 D - II1 = func(II2, I3) |f = func(Re, e/D)|
7. Pump 50mm Þ 17m Data: f = 0.0067 Pressure at 3 = 194 kN/m² gauge Velocity at 3 = 2.7 m/s p = 830 kg/m³ Pump efficiency = 88% Motor efficiency = 84% Pressure at 1 is atmospheric Velocity at 1 is negligible Determine required input power to motor [1.64 kW] 8. 200mm turbine water gen Data: At 1, p = 230 kN/m² gauge, v = At 2, p = 0 = 0 gauge, v = 0 Turbine efficiency = 80% Generator efficiency = 90% 3.6 m/s %3D Determine output power from generator [19.3 kW]
Determine the pressure drop over a reducer with the following conditions: Fluid density: 25 kg/m3Fluid velocity: 1.5 m/sFluid viscosity: 0.001 Pa*sInlet diameter: 0.12 mOutlet diameter: 0.019 mPipe absolute roughness: 4e-4 m Give your final answer in Pa, rounded to the nearest whole number. [Ignore entrance/exit losses and velocity loss terms]
4.) Please help with equation, gravity is g=32.2 ft/sec^2 or g=9.81 m/sec^2
Water flows from a 20-mm-diameter pipe with a flowrate Q as shown in the figure below. What is the approximate diameter of the water stream, d, in units of cm, if the distance below the faucet is, h=2 m, and Q = 0.003 m³ /s? 20 mm O a. 1.83 m b. 2.07 m O c. 3.29 m d. 4.66 m O e. 5.29 m