Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
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Chapter 11, Problem 11.26PP
Specify the size of new Schedule 40 steel pipe required to carry gasoline at 77°F through 120 ft of horizontal pipe with no more than 8.0 psi of pressure drop at a volume flow rate of 100 gal/min.
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Specifications:
The total length of pipe in the three inch branch is 10 ft, and the length of pipe in the one inch branch is 8 ft.
Brine (sg=1.04, m=10-3Pa*s) flows at 250gpm through the entrance at point A.
Assume fully turbulent flow in both branches (f=ft).
Pipes are standard Schedule 40 steel pipes.
Assume the globe valve is partially shut so its equivalent L/D is 1000.
For Part 1 of this project, you are tasked with determining the following:
The flow rate in both branches
The pressure drop in both branches
The overall resistance coefficient
Benzene (SG=0.86) at 60°C is flowing at 25 L/min in a DN 25 Schedule 80 steel pipe. Is the flow laminar or turbulent? Explain.
10.21 Determine the energy loss for a gradual contraction from a DN 125 Schedule 80 steel pipe to a DN 50 Schedule 80 pipe for a flow rate of 500 L/min. The cone angle for the contraction is 105.
hL=0.224m
Chapter 11 Solutions
Applied Fluid Mechanics
Ch. 11 - Water at 10C flows from a large reservoir at the...Ch. 11 - For the system shown in Fig. 11.14, kerosene (...Ch. 11 - Figure 11.15 shows a portion of a hydraulic...Ch. 11 - Figure 11.16 shows part of a large hydraulic...Ch. 11 - Oil is flowing at the rate of 0.015m3/s in the...Ch. 11 - For the system shown in Fig. 11.18, calculate the...Ch. 11 - A liquid refrigerant flows through the system,...Ch. 11 - Water at 100F is flowing in a 4-in Schedule 80...Ch. 11 - A hydraulic oil is flowing in a drawn steel...Ch. 11 - In a processing plant, ethylene glycol at 77F is...
Ch. 11 - Water at 15C is flowing downward in a vertical...Ch. 11 - Turpentine at 77F is flowing from A to B in a 3...Ch. 11 - ]11.13 A device designed to allow cleaning of...Ch. 11 - Kerosene at 25C is flowing in the system shown in...Ch. 11 - Water at 40C is flowing from A to B through the...Ch. 11 - Oil with a specific gravity of 0.93 and a dynamic...Ch. 11 - Determine the required size of new Schedule 80...Ch. 11 - What size of standard hydraulic copper tube from...Ch. 11 - Water at 60F is to flow by gravity between two...Ch. 11 - The tank shown in Fig. 11.24 is to be drained to a...Ch. 11 - Figure 11.25 depicts gasoline flowing from a...Ch. 11 - For the system in Fig. 11.26, compute the pressure...Ch. 11 - For the system in Fig. 11.26, compute the total...Ch. 11 - For the system in Fig. 11.26 specify the size of...Ch. 11 - A manufacturer of spray nozzles specifies that the...Ch. 11 - Specify the size of new Schedule 40 steel pipe...Ch. 11 - Refer to Fig. 11.27. Water at 80C is being pumped...Ch. 11 - For the system shown in Fig. 11.27 and analyzed in...Ch. 11 - In a water pollution control project, the polluted...Ch. 11 - Repeat Problem 11.29, but use a 3-in Schedule 40...Ch. 11 - Water at 10C is being delivered to a tank on the...Ch. 11 - If the pressure at point A in Fig. 11.29 is 300...Ch. 11 - Change the design of the system in Fig. 11.29 to...Ch. 11 - It is desired to deliver 250 gal/min of ethyl...Ch. 11 - For the system shown in Fig. 11.30, compute the...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Repeat Problem 11.35, but consider the valve to be...Ch. 11 - Figure 11.31 depicts a DN 100 Schedule 40 steel...Ch. 11 - Repeat Problem 11.38 but replace the globe valve...Ch. 11 - Repeat Problem 11.38 but use a DN 125 Schedule 40...Ch. 11 - Repeat Problem 11.38, but replace the globe valve...Ch. 11 - It is desired to drive a small,...Ch. 11 - Figure 11.32 shows a pipe delivering water to the...Ch. 11 - Repeat Problem 11.43, except consider that there...Ch. 11 - A sump pump in a commercial building sits in a...Ch. 11 - For the system designed in Problem 11.45, compute...Ch. 11 - Figure 11.33 shows a part of a chemical processing...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - For the system described in Problem 11.47, and...Ch. 11 - Analyze the system shown in Fig. 11.11 with...Ch. 11 - Create a program or a spreadsheet for analyzing...Ch. 11 - Create a program or a spreadsheet for determining...
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- The total length of pipe in the three inch branch is 20 ft, and the length of pipe in the one inch branch is 6 ft. Brine (sg=1.04, m=10-3 Pa*s) flows at 250gpm through the entrance at point A. Assume fully turbulent flow in both branches (f=ft). Pipes are standard Schedule 40 steel pipes. Assume the globe valve is partially shut so its equivalent L/D is 1000. determine The flow rate in both branches The pressure drop in both branches The overall resistance coefficientarrow_forwardIn Applied fluid mechanic, chapter 8 problem 8.21, can someone explain to me how to solve step by step? The question is A system is being designed to carry 500 gal/min of ethylene glycol at 77 F at a maximum velocity of 10 ft/s. Specify the smallest standard Schedule 40 steel pipe to meet this condition. Then for the selected pipe compute the Reynolds number for flow.arrow_forwardWater at 15°C is flowing in a 3 inch horizontal Schedule 40 steel pipe at a pressure of 102 kPa. The pipe reduces to a 1.5 inch Schedule 40 steel pipe. What is the flow rate if pressure in the 1.5 inch pipe is 99.8 kPa?arrow_forward
- Determine the friction factor “f “ for a 40 mm ID cast iron pipe handling 400 L/min of water using the Moody Chartarrow_forwardthe hydraulic radius of a pipe with a diameter of 12mm isarrow_forwardCalculate the resistance coefficient K for a check valve swing type placed in a 6 inch schedule 40 steel pipe if water at 100º F flowing with a velocity of 10 ft/sarrow_forward
- A major water main is an 18-in ductile iron pipe. Compute the Reynolds number if the pipe carries 16.5 ft/s of water at 50°F.arrow_forwardFuel oil (sg=0.94) is being delivered to a furnance at a rate of 60 gal/min through a 1 1/2in schedule 40 steel pipe. Compute the pressure difference two points 40ft apart if the pipe is horizantal and the oil is at 85°F.arrow_forwardA 6 nominal schedule 40 galvanized steel pipe is 25 ft long. It is to convey castor oil. The available pump can provide a pressure drop of 1.64 psi. Determine the expected flow rate of castor oil in the pipe. Use metric units. guess that first f is 0.02. use moody chartarrow_forward
- Water is transported for 500 m in a 4 inch ductile iron pipe (coated) with a flow rate of 0.04 m3/s. Calculate the pressure drop over the 500 m length of pipe. (Calculate the friction factor f using the formula given in class notes/textbook, and not by using the Moody chart).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_forward18.A venture meter is a device that uses a constriction in a flow system to measure the velocity of flow, Figure 12 illustrate one type design. If the main pipe section is a standard hydraulic copper tube having a 100-mm outside diameter x 3.5-mm wall thickness, compute the volume flow rate when the velocity there is 3.0 m/s. Then, for that volume flow rate, specify the required size of throat section that would make the velocity there at least 15.0 m/s.arrow_forward
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