H.W:1-A Pitot tube is inserted in the pipe of 30 cm I.D. The static pressure head is 10 cm Hg vacuum,and the stagnation pressure at center of the pipe is 0.981 N/cm2 gauge. Calculate the dischargeof water through the pipe if u/umax = 0.85. Take Cp = 0.98.

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Answered: H.W: 1-A Pitot tube is inserted in the…

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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3- A horizontal Venturi meter with d1 = 20 cm, and d₂ = 10 cm, is used to measure the flow rate of oil of sp.gr. 0.8, the discharge through venture meter is 60 lit/s. find the reading of (oil-Hg) differential Take Cd = 0.98.
2. A turbine is used to produce 2700 hp by expanding the water between points 1 and 2. Water flow rate, static pressures and pipe diameters are given. Calculate the power lost in between point one and two. Note that the static pressure at point 2 is given in vacuum. (SGH =13.6) P1 = 60 psi Q = 150 ft³/s D = 3 ft Section (1) Turbine 10 ft P2 10-in. Hg %3D vacuum D2 = 4 ft Section (2)
35 + 9.81 (0.3824 - 7-2) = - 49.54 kPa. S. Chand e oladall i.e.Pg =- 49.54 kPa. This shows that the given pressure at A, 35 kPa is gauge pressure and hence there is vacuum at point B. (Ans.) Example 6.5. An open circuit wind tunnel draws in air from the atmosphere through a well contoured nozzle. In the test section, where the flow is straight and nearly uniform, a static pressure tap is drilled into the tunnel wall. A manometer connected to the tap shows that the static pressure within the tunnel is 45 mm of water below atmosphere. Assume that air is incompressible and at pressure is 100 kPa (absolute). Calculate the velocity in the wind tunnel section (Refer to Fig. 6.6). Density of P.= 100 kPa water is 999 kg/m' and characteristic gas constant for V =0 air is 287 J/kg K. ساP حقوق النشر 25°C, Test section = 25°C (GATE)
There are five tubes that fill up to different levels 1: 22.5 cm, 2: 19 cm, 3: 17.5 cm, 4: 16 cm, 5: 13 cm the tubes fill up the tank of about 1900 mL a.What is the Reynolds number of the flow through the pipe? (~16000) Is itturbulent or laminar flow?b. What is the head loss (in cm) for the flow through the full length of the pipe, i.e.,from the first to the fifth tube?c. Based on your head loss calculated in part b, what is the Fanning friction factorfor this flow? (~ 0.01)d. What is the roughness of the pipe? (~ 0.09 mm )
SAMPLE PROBLEMS #3 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 pressure tape along the pipe is 1.5 m, the differential pressure is 70 kPa, and the water temperature is 70°C, what is the discharge of water in m'/sec? Assume coefficient of 0.985.
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Water at 40°F is flowing downward through the fabri- cated reducer shown in Fig. 7.11. At point A the velocity is 10 ft/s and the pressure is 60 psig. The energy loss be tween points A and B is 25 lb-ft/lb. Calculate the pressure at point B.
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PLease include a diagram.A Special oil is to be used in an absorption tower. The preliminary design of the unit requires the oil to be pumped from an open tank with a 10 ft liquid level above the floor and forced through 150 ft of 3 inches schedule 40 pipe with a ball check valve and 5 elbows into the top of a tower 30ft above the floor. The operating pressure in the tower is to be 52 psig and the oil requirement is estimated at 50gpm. The viscosity of the oil is 15cP and its density is 53.5 lbm/ft3. Assuming the pumping outfit operates with an overall efficiency of 60%, what horsepower input will be required for the pump motor?
Question - You must discuss in detail the way in which the pitot tube and nozzle flow meter are used to calculate velocity or volume flow rate. Write the velocity (or flow rate) equations for both and a detailed description of the what you did.
Q4:: A. Find the discharge through the Venturi meter. B. Find the difference in pressure between large and small pipes in (mmHg) 150mm T 76cm 300mm 36cm
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H.W: 1-A Pitot tube is inserted in the pipe of 30 cm I.D. The static pressure head is 10 cm Hg vacuum, and the stagnation pressure at center of the pipe is 0.981 N/cm2 gauge. Calculate the discharge of water through the pipe if u/umax = 0.85. Take Cp = 0.98.