Consider air flowing through the pipe network shown in the figure below. The flow through Section 1 and Section 2 of the network has a velocity of 1 m/s. The diameters of Section 1, Section 2, and Section 3 of the network are 10 cm, 8 cm, and 6 cm, respectively. The outlet of Section 2 is at atmospheric pressure. All pipes can be considered perfectly smooth, gravitational potential energy changes can be neglected, and minor losses in the tee can be neglected. The flow is turned in Section 1 of the network using a regular 90° threaded elbow. Calculate the gage pressure p₁ at the inlet of Section 1, the gage pressure P3 at the outlet of Section 3, and the velocity u3 at the outlet of Section 3. Note: Each section is separated from the others by the tee joint. 5 m 1 m/s P₁ 1 m/s 2 m Section 2 2 m Section 1 Section 3 4 m P3 U₂

Consider air flowing through the pipe network shown in the figure below. The flow through Section 1 and Section 2 of the network has a velocity of 1 m/s. The diameters of Section 1, Section 2, and Section 3 of the network are 10 cm, 8 cm, and 6 cm, respectively. The outlet of Section 2 is at atmospheric pressure. All pipes can be considered perfectly smooth, gravitational potential energy changes can be neglected, and minor losses in the tee can be neglected. The flow is turned in Section 1 of the network using a regular 90° threaded elbow. Calculate the gage pressure p₁ at the inlet of Section 1, the gage pressure P3 at the outlet of Section 3, and the velocity u3 at the outlet of Section 3. Note: Each section is separated from the others by the tee joint. 5 m 1 m/s P₁ 1 m/s 2 m Section 2 2 m Section 1 Section 3 4 m P3 U₂

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

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Water flows through pipe A whose diameter is 30 cm and into parallel pipes 1, 2 and 3 and out through Pipe B (diameter= 30 cm). The properties of the pipe are as follows: for pipe 1, L= 300 m, diameter = 10 cm f= 0.020; for pipe 2 L= 240 m diameter= 15 cm f= 0.018 and for pipe 3, L= 600 deiameter= 20 cm f= 0.017. The upstram junction has an Elev. 90 m with pressure of 205 kPa; the downstream junction is at Elev. 30 m. If the average velocity in pipe A is 3.0 m/s, find the flow rate in pipe 3. Provide FBD and choose the right answer below a.24.68 L/s b.212.0 L/s c.80.21 L/s d.107.11 L/s Clear my choice
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= = Air flows radially outward between the two parallel circular plates shown in the figure below. The pressure at the outer radius, Ro 5 cm, is atmospheric. Find the pressure at the inner radius R¿ 0.5 cm, if the air density is constant, the air flow is inviscid, the volume flow rate is 4.0 L/s, and the plate spacing is h = 0.125 cm. h Po= Patm = 101.3 kPa T = 20°C 777 R₁ Ra
Water flows through pipe A whose diameter is 30 cm and into parallel pipes 1, 2 and 3 and out through Pipe B (diameter= 30 cm). The properties of the pipe are as follows: for pipe 1, L= 300 m, diameter = 10 cm f= 0.020; for pipe 2 L= 240 m diameter= 15 cm f= 0.018 and for pipe 3, L= 600 deiameter= 20 cm f= 0.017. The upstram junction has an Elev. 90 m with pressure of 205 kPa; the downstream junction is at Elev. 30 m. If the average velocity in pipe A is 3.0 m/s, find the flow rate in pipe 3. include your free body diagram. a.24.68 L/s b.80.21 L/s c.107.11 L/s d.212.0 L/s
Question 5 Water exits from a large vessel through a smooth pipe, with a length L = 7 m and an internal diameter D = 5 cm, as shown in Figure Q5. The loss coefficient at the pipe inlet is KL,1 = 0.8 and at the outlet is KL,2 = 1. The flowrate out of the pipe is 10 L/s. The density and viscosity of water are p = 1000kg/m³ and μ = 1 mPa.s. a) Find the Reynolds number in the pipe b) Find the friction factor in the pipe, fp. If you use the Moody diagram, include this in your answer clearly showing how you calculated fp. (A Moody diagram is available at the end of this exam paper.) c) What is pressure at the pipe inlet, p₁? (Note: the pressure difference between p2 and p₁ is equal to the total pressure drop along the pipe, including minor and major losses.) P1 L • P₂ Figure Q5: A straight pipe allows water to exit from a pipe to the atmosphere.
********** ********* Q2: The flow rate of liquid through pipe is 0.342 m³/s and the head loss per 100 m of pipe is 8 m. what is the diameter of the pipe? Kinematic viscosity v= 2*10$ m²/s, p=950 kg/m³ and equivalent roughness (ks= 0.06). *************************************************************** **************** *
Only a&b