Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780133494839
Author: Mott
Publisher: PEARSON
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Chapter 10, Problem 10.41PP
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A branch duct for a heating system measures 76 mm * 154 mm. Compute the circular equivalent diameter. Then determine the maximum flow rate of air that the duct could carry while limiting the friction loss to 0.82 Pa/m
As shown in the figure, a pipe system having a total length of 102 m carries a discharge of 0.060 m3 per second. The 30 m pipe has a diameter of 100 mm and the 12 m pipe has a diameter of 120 mm. The minor losses for the entrance, elbows and globe valves are 0.5, 0.9 and 10, respectively. If the friction factor f = 0.0225, compute the following:
a) The equivalent length of the pipe (m),
*The equivalent length of the pipe is the length of the pipe considering the total head losses.
b) The head difference, H (m),
c) The pressure difference between entrance and discharge end (kPa).
Note: Maintain up to 3 decimal places on partial and final answers.
Compute the energy loss as water flows in a standard hydraulic copper tube, 120 mm OD X 3.5 mm wall, at a rate of 1000 L/min over a length of 45 m.
Chapter 10 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the energy loss due to a sudden...Ch. 10 - Determine the pressure difference between two...Ch. 10 - Determine the pressure difference for the...Ch. 10 - Determine the energy loss due to a gradual...Ch. 10 - Determine the energy loss for the conditions in...Ch. 10 - Compute the energy loss for gradual enlargements...Ch. 10 - Plot a graph of energy loss versus cone angle for...Ch. 10 - For the data in Problem 10.8, compute the length...
Ch. 10 - Add the energy loss due to friction from Problem...Ch. 10 - Another term for an enlargement is a diffuser. A...Ch. 10 - Compute the resulting pressure after a "real"...Ch. 10 - Compute the resulting pressure after a "real"...Ch. 10 - Determine the energy loss when 0.04m3/s of water...Ch. 10 - Determine the energy loss when 1.50ft3/s of water...Ch. 10 - Determine the energy loss when oil with a specific...Ch. 10 - For the conditions in Problem 10.17, if the...Ch. 10 - True or false: For a sudden contraction with a...Ch. 10 - Determine the energy loss for a sudden contraction...Ch. 10 - Determine the energy loss for a gradual...Ch. 10 - Determine the energy lass for a sudden contraction...Ch. 10 - Determine the energy loss for a gradual...Ch. 10 - For the data in Problem 10.22, compute the energy...Ch. 10 - For each contraction described in Problems 10.22...Ch. 10 - Note in Figs. 10.10 and 10.11 that the minimum...Ch. 10 - If the contraction from a 6-in to a 3-in ductile...Ch. 10 - Compute the energy loss that would occur as 50...Ch. 10 - Determine the energy loss that will occur if water...Ch. 10 - Determine the equivalent length in meters of pipe...Ch. 10 - Repeat Problem 10.30 for a fully open gate valve.Ch. 10 - Calculate the resistance coefficient K for a...Ch. 10 - Calculate the pressure difference across a fully...Ch. 10 - Determine the pressure drop across a 90 C standard...Ch. 10 - Prob. 10.35PPCh. 10 - Repeat Problem 10.34 for a long radius elbow....Ch. 10 - A simple heat exchanger is made by installing a...Ch. 10 - A proposed alternate form for the heat exchanger...Ch. 10 - A piping system for a pump contains a tee, as...Ch. 10 - A piping system for supplying heavy fuel oil at 25...Ch. 10 - A 25 mm ODx2.0 mm wall copper tube supplies hot...Ch. 10 - Specify the radius in mm to the centerline of a 90...Ch. 10 - The inlet and the outlet shown in Fig. 10.36 are...Ch. 10 - Compare the energy losses for the two proposals...Ch. 10 - Determine the energy loss that occurs as 40 L/min...Ch. 10 - Figure 10.38 shows a test setup for determining...Ch. 10 - Compute the energy loss in a 90 bend in a steel...Ch. 10 - Compute the energy loss in a 90 bend in a steel...Ch. 10 - For the data in Problem 10.47, compute the...Ch. 10 - For the data in Problem 10.48, compute the...Ch. 10 - A tube similar to that in Problem 10.47 is being...Ch. 10 - Prob. 10.52PPCh. 10 - Prob. 10.53PPCh. 10 - Prob. 10.54PPCh. 10 - Prob. 10.55PPCh. 10 - Repeat Problem 10.55 for flow rates of 7.5 gal/min...Ch. 10 - Prob. 10.57PPCh. 10 - Prob. 10.58PPCh. 10 - Prob. 10.59PPCh. 10 - Prob. 10.60PPCh. 10 - A 34 plastic ball valve carries 15 gal/min of...Ch. 10 - A 114 plastic butterfly valve carries 60 gal/min...Ch. 10 - A 3 -in plastic butterfly valve carries 300...Ch. 10 - A 10-in plastic butterfly valve carries 5000...Ch. 10 - A 1 12 plastic diaphragm valve carries 60 gal/min...Ch. 10 - Prob. 10.66PPCh. 10 - Prob. 10.67PPCh. 10 - Prob. 10.68PPCh. 10 - Prob. 10.69PPCh. 10 - An 8 -in plastic swing check valve carries 3500...Ch. 10 - Use PIPE-FLO software to determine the pressure...Ch. 10 - Use PIPE-FLO to calculate the head loss and...
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- Gasoline (5g = 0.67) is flowing at 0.11 m ^ 3 / s in the conduit shown in Figure 6.21. if the pressure before reduction is 415 kPa. Calculate the pressure in the 75 mm diameter duct.arrow_forwardA pump is used to lift water at ambient temperature from one tank to another at a rate of 08/50 m3/min. If the pipe diameter is 4 in, calculate the power required to run the pump (efficiency 70%). The pipe material is commercial steel and contains 3 standard radius elbows. Assume h=1 cP. Calculate the Reynolds number and the friction head loss using the Moody chart attached, Using Colebrook equation. Calculate the other losses and the total loss, (Calculate the required power. Flow rate is not necessary for answering the question.arrow_forwardCompute the average speed of water in a pipe with a diameter of 5.0 cm and delivering 2.5 m3 of water per hour. Select one: 0.25 m/s 0.13 m/s 0.03 m/s 0.35 m/sarrow_forward
- The small turbine in Fig. extracts 400 W of power from the water flow. Both pipes are wrought iron. Compute the flow rate Q in m3/h.arrow_forwardCalculate the minimal head of the pump required to pump 1 m³ of water per second to the height 10 m trough a pipe with cross sectional area 0.1 m². Assume constant friction coefficient f = 0.04 and neglect all losses in fittings. The pump head is the gravity head plus losses and so it can be found?arrow_forwardplease draw a diagram, thanks Water at 4.4oC with a density of 1000 kg/ m3 and a viscosity of 1.55 cP is to flow through a horizontal commercial steel pipe having a length of 305 m at the rate of 150 gal/min. A head of water of 6.1 m is available to overcome the friction loss due to skin. Calculate the pipe diameter.arrow_forward
- 10.) A horizontal pipe gradually reduces from 300 mm diameter section to 100 mm diameter section. The pressure at the 300 mm section is 100 kPa and at the 100 mm section is 70 kPa. If the flow rate is 15 liters/sec of water, compute the head lost between the two sections. Answer: 2.872m Subject: Fluid Mechanic Lesson: Relative Equilibrium of Liquids Fundamentals of Fluid Flowarrow_forwardTwo pipes in a series have a flow rate of 50 L/s. The pipe upstream is 300 mm and reduced downstream to 150 mm. Determine the velocities for both diameters in m/s. Consider the centerline of the pipes along a horizontal datum reference. Ignore losses.arrow_forwardA horizontal 154 mm diameter pipe gradually reduces its section to 53 diameter, subsequently enlarging into 154 mm section. The pressure in the 154-mm pipe at a point just before entering the reducing section is 141 kPa and in the 53 mm section at the end of the reducer, the pressure is 73 kPa. If 627 mm of head is lost between the points where the pressure are known compute the rate of flow in L/s of water through the pipe.arrow_forward
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