A petroleum product of viscosity 0.5 m Ns/m² and density 700 kg/m³ is pumped from a tank through a pipe of 0.15 m diameter to another storage tank 100 m away. The pressure drop along the pipe is 10.1526 psia. The pipeline has to be repaired and it is necessary to pump the liquid by an alternative route consisting of 70 m of 200 mm pipe followed by 50 m of 100 mm pipe. Calculate the pressure drop for the alternative route. Is a pump capable of developing a pressure of 43.5113 psia, will be suitable for use during the period required for the repairs? Take the roughness (ℇ) of the pipe surface as 0.05 mm

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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A petroleum product of viscosity 0.5 m Ns/m² and density 700 kg/m³ is pumped from
a tank through a pipe of 0.15 m diameter to another storage tank 100 m away. The
pressure drop along the pipe is 10.1526 psia. The pipeline has to be repaired and it is
necessary to pump the liquid by an alternative route consisting of 70 m of 200 mm pipe
followed by 50 m of 100 mm pipe. Calculate the pressure drop for the alternative route.
Is a pump capable of developing a pressure of 43.5113 psia, will be suitable for use
during the period required for the repairs? Take the roughness (ℇ) of the pipe surface as
0.05 mm.

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