Homework #$4$

Due: Wed Oct $2,202411$:$59$pm

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A $14-$inch, PVC waterline has a relative roughness of $0\mathrm{.}001.$ The Reynolds number of the fluid in the pipeline is

$650,000.$ Using the Colebrook$-$White equation, compute the friction factor. You'll need to use Excel to make your life

easier. Round your answer to the ten$-$thousandth place, and remember that the equations used here like to have the

length unit of "feet".

A $16-$inch, PVC waterline has a relative roughness of $0\mathrm{.}0003.$ The Reynolds number of the fluid in the pipeline is

$500,000.$ Using the Swamee$-$Jain equation, compute the friction factor. Report your answer to the thousandths.

A city still has an old $14-$inch steel waterline in service that they installed more than $80$ years ago. The city installed

monitoring equipment to determine if there was any deterioration of the pipeline wall. Meaning: They want to assess

if the pipeline is experiencing high friction factors. During one of the tests, the flowrate in a $1250-$foot section of the

pipeline was metered at $1,950ga\frac{l}{m}in$ and showed a headloss of $11\mathrm{.}25$ feet. The temperature of the water was $60$

F$.$ Compute the friction factor observed in the pipeline.

Submit your work as a single $.$pdf file.