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- C3. Provide solution using the Moody diagram Oil (RD 0.8) with viscosity 0.06 Pa.s flows in a cast iron pipe of length 100m and diameter 120mm. Relative roughness = 0.0031 1. Determine the head loss when the velocity is: 3.2 m/s 2. Discuss and agree upon how could the head loss be reduced. Write your conclusions.Q. Determine the kinematic viscosity at the average temperature and determine the Reynolds number and type of flow using the data shown below and table values: Data obatined from a Reynolds Number test: Water temperature at the beginning of the experiment = 25 oC Water temperature at the end of the experiment = 30 oC The Volume of water collected in 25 seconds = 240 ml Pipe diameter, d= 10 mm. (use eq'n reynold's number, Re = VD/vWater Gs=1 1. In a test to determine the discharge h = 300 coefficient of a 70 by 35 mm Venturi meter, the total weight of water passing through the meter in 5 minutes was 3.5 kN. A mercury differential gage connected to the inlet and throat of the meter showed an average mercury difference during that time of 300 mm. Determine the actual discharge if the same meter is used later on and a 250 mm difference is then observed. mm Mercury, Hg Gs= assume, 4 significant figures 2. The diameter of a 3 meter pipe decreases from 450 mm to 150 mm. If the velocity is to decrease uniformly in a linear manner, draw the diameter profile at each 500 mm length interval along the pipe. Discharge is 150 liters per second.
- Water Gs=1 1. In a test to determine the discharge coefficient of a 70 by 35 mm Venturi meter, the total weight of water passing through the meter in 5 minutes was 3.5 kN. A mercury differential gage connected to the inlet and throat of the meter showed an average mercury difference during that time of 300 mm. Determine the actual discharge if the same meter is used later on and a 250 mm difference is then observed. h = 300 mm Mercury, Hg Gs = assume, 4 significant figuresQuestion: A sewage treatment plant for a town with 120000 population and water average temperature of 20 °C should be designed. You are asked to design a coagulation/rapid mixer and a flocculation tank with horizontal shaft paddle. The jar tests suggest average G-value of 30 (m/s)/m, minimum water residence time of 1500 seconds and GT value from 55000 to 90000. The flocculation tank should include 3 compartments with similar compartments' geometry aspects separated using baffles partitions. The width of each flocculation tank should not exceed 7 meters due to some constraints highlighted by the project's mechanical engineers about the maximum length of each shaft. Determine: 1- The volume and dimension and power requirement of the cylindrical rapid mixer 2- The flocculation tank dimension 3- Required power for each flocculation mixer 4- The paddle wheel dimension 5- Rotational speed of each mixers (Check if the speeds are acceptable) 6- Baffle size and distribution 7- Write about any…Water Gs=1 1. In a test to determine the discharge coefficient of a 70 by 35 mm Venturi meter, the total weight of water passing through the meter in 5 minutes was 3.5 kN. A mercury differential gage connected to the inlet and throat of the meter showed an average mercury difference during that time of 300 mm.. Determine the actual discharge if the same meter is used later on and a 250 mm difference is then observed. Mercury, Hg Gs = assume, 4 significant figures 2. The diameter of a 3 meter pipe decreases from 450 mm to 150 mm. If the velocity is to decrease uniformly in a linear manner, draw the diameter profile at each 500 mm length interval along the pipe. Discharge is 150 liters per second. Reservoir B 3. A pump draws water at 300 liters per second from reservoir A and lifts it to reservoir B as shown. The head loss from A to 1 is 20 times the velocity head in the 200 mm diameter and the head loss from 2 to B is 20 times the velocity head in the 150-mm diameter pipe. Assume your…
- c) The orifice flowmeter shown in Figure 4 is used to obtain the flowrate of oil inside a conduit. The diameter of the orice, d is one third of the pipe diameter, D with pressure difference recorded as 25 kPa. The pipe diameter D is 6 cm, discharge coefficient Ca, is 0.60, Bis the ratio of orifice diameter to pipe diameter and Oilspedific gravity, SG is 0.95. If the h is 7 cm, i. Calculațe the vollime flowrate of oil inside the conduit. ii. Determine the mass flowrate of oil inside the conduit. iii. Explain why the discharge coefficient Ca, for the orifice meter is higher compared to the venturi and nozzle meters. D=6 cm d Figure 41. A venturi meter is introduced in a 300 mm diameter horizontal pipeline carrying a liquid under a pressure of 150 kPa. The throat diameter of the me-ter is 100 mm and the pressure at the throat is 400 mm of mercury below atmosphere. If 3% of the differential pressure is lost between inlet and thethroat, determine the flow rate of the pipeline and draw the figure.40. Situation 14 - A calibration test of a 0.00785 m2 circular sharp-edged orifice in a vertical side of a large tank showed a discharge of 22,300 N of water in 1 minute and 40 seconds at a constant head of 1.20 m. Measurement of the jet showed that it traveled 1.92 m. horizontally while dropping 0.80 m. a. What is the nearest value of the coefficient of contraction? Round off to four decimal places. b. What is the nearest value of the coefficient of velocity? Round off to four decimal places. c. What is the nearest value of the coefficient of discharge? Round off to four decimal places.
- A differential "U"-tube manometer containing mercury of density 13000 kg/m³ is used to measure the pressure drop along a horizontal pipe. If the fluid in the pipe is water and the manometer reading is 0.65m, what is the pressure difference between the two tapping points? Fluid density Pw A B a b datum Manometric fluid density p Hg Figure of manometer setupQsn. Plot the flow curve of liquid limit according to the data given in the table.(c) Venturi-type flowmeter shown in Figure 5 is used to obtain the flowrate of oil inside a conduit. The diameter of the venturi, d is one third of the pipe diameter, D. The pipe diameter D is 6 cm, pressure difference reading AP, is 25 kPa, discharge coefficient Ca, is 0.98, Bis the ratio of venturi diameter to pipe diameter and oil specific gravity, SG is 0.95. i) Calculate the volume flowrate of oil inside the conduit. ii) Determine the mass flowrate of oil inside the conduit. iii) Explain why the discharge coefficient Ca, for the ventury meter is higher compared to the nozzle meter. 2(P – P.) V. ventury AP oil d Figure 5