3. You have a piping system in your plant that has gotten old and rusty. The pipe is 2 in. sch 40 steel, 6000 ft long. You find that it takes 35 hp to pump water through the system at a rate of 100 gpm. a. What is the equivalent roughness of the pipe? b. If you replace the pipe with the same size new commercial steel pipe, what percentage savings in the required power would you expect at a flow rate of 100 gpm?
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Subject: Momentum Transfer
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3. You have a piping system in your plant that has gotten old and rusty. The pipe is 2 in. sch 40 steel, 6000 ft long. You find that it takes 35 hp to pump water through the system at a rate of 100 gpm.
a. What is the equivalent roughness of the pipe?
b. If you replace the pipe with the same size new commercial steel pipe, what percentage savings in
the required power would you expect at a flow rate of 100 gpm?
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