A 6-inch-diameter pipeline has a length of 845 ft and flows between two reservoirs with an elevation drop of 33.5 ft. The pipe is ductile iron and the fluid is water at 40° F. Minor losses are listed below. Description Number 90° Bends 9 45° Bends 8 Other R/d=2.5 R/d=5 Gate Valves 4 Fully Open Swing-Check Valves 2 Entrance 1 Square Edge Exit a. Determine the flow rate using the Darcy-Weisbach equation and the fully rough friction factor from the Moody Diagram. Neglect minor losses for this flow estimate. b. Modify the friction factor using the Reynolds number from the flow above. Include minor losses using K values from the class handout. Recompute the flow rate. c. Using the friction factor from (a), convert the minor losses to an equivalent pipe length and use the Swamee-Jain equation for Q to estimate the flow rate. d. Convert the minor losses to an equivalent pipe length for the Hazen-Williams equation. Use a C = 140 and calculate the flow rate by adding the minor loss equivalent length to the pipe length.
A 6-inch-diameter pipeline has a length of 845 ft and flows between two reservoirs with an elevation drop of 33.5 ft. The pipe is ductile iron and the fluid is water at 40° F. Minor losses are listed below. Description Number 90° Bends 9 45° Bends 8 Other R/d=2.5 R/d=5 Gate Valves 4 Fully Open Swing-Check Valves 2 Entrance 1 Square Edge Exit a. Determine the flow rate using the Darcy-Weisbach equation and the fully rough friction factor from the Moody Diagram. Neglect minor losses for this flow estimate. b. Modify the friction factor using the Reynolds number from the flow above. Include minor losses using K values from the class handout. Recompute the flow rate. c. Using the friction factor from (a), convert the minor losses to an equivalent pipe length and use the Swamee-Jain equation for Q to estimate the flow rate. d. Convert the minor losses to an equivalent pipe length for the Hazen-Williams equation. Use a C = 140 and calculate the flow rate by adding the minor loss equivalent length to the pipe length.
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter5: Separation Processes
Section: Chapter Questions
Problem 5.14P: Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10...
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Transcribed Image Text:A 6-inch-diameter pipeline has a length of 845 ft and flows between two reservoirs with an
elevation drop of 33.5 ft. The pipe is ductile iron and the fluid is water at 40° F. Minor
losses are listed below.
Description
Number
90° Bends
9
45° Bends
8
Other
R/d=2.5
R/d=5
Gate Valves
4
Fully Open
Swing-Check Valves
2
Entrance
1
Square Edge
Exit
a. Determine the flow rate using the Darcy-Weisbach equation and the fully rough friction
factor from the Moody Diagram. Neglect minor losses for this flow estimate.
b. Modify the friction factor using the Reynolds number from the flow above. Include
minor losses using K values from the class handout. Recompute the flow rate.
c. Using the friction factor from (a), convert the minor losses to an equivalent pipe length
and use the Swamee-Jain equation for Q to estimate the flow rate.
d. Convert the minor losses to an equivalent pipe length for the Hazen-Williams equation.
Use a C = 140 and calculate the flow rate by adding the minor loss equivalent length
to the pipe length.
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