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A tank carrying benzene is unloaded (P = 1.05 bar). The used pipeline is 225 %3D nm internal diameter and 1500 m long. Miscellaneous losses due to fitting and ralve equivalent to 600 pipe diameters. The maximum liquid level in the storage tank is 50 m above the lowest level in the benzene tank. The storage ank has a floating roof, which exerts a pressure of 1.1 bar on the liquid. The ised pump must be unloaded 1000 tons within 4 hours. Estimate the power required by the pump. Take the pump efficiency as 70 percent. The density and riscosity of benzene are 881 kg/m³, and 0.6807 mN s/m², respectively.

A tank carrying benzene is unloaded (P = 1.05 bar). The used pipeline is 225 %3D nm internal diameter and 1500 m long. Miscellaneous losses due to fitting and ralve equivalent to 600 pipe diameters. The maximum liquid level in the storage tank is 50 m above the lowest level in the benzene tank. The storage ank has a floating roof, which exerts a pressure of 1.1 bar on the liquid. The ised pump must be unloaded 1000 tons within 4 hours. Estimate the power required by the pump. Take the pump efficiency as 70 percent. The density and riscosity of benzene are 881 kg/m³, and 0.6807 mN s/m², respectively.

Introduction to Chemical Engineering Thermodynamics
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
Section: Chapter Questions
Problem 1.1P
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A tank carrying benzene is unloaded (P = 1.05 bar). The used pipeline is 225 %3D mm internal diameter and 1500 m long. Miscellaneous losses due to fitting and valve equivalent to 600 pipe diameters. The maximum liquid level in the storage tank is 50 m above the lowest level in the benzene tank. The storage tank has a floating roof, which exerts a pressure of 1.1 bar on the liquid. The used pump must be unloaded 1000 tons within 4 hours. Estimate the power required by the pump. Take the pump efficiency as 70 percent. The density and viscosity of benzene are 881 kg/m³, and 0.6807 mN s/m², respectively. Note: re-calculate the pipe diameter using the same pump power if it was used for water.
Transcribed Image Text:A tank carrying benzene is unloaded (P = 1.05 bar). The used pipeline is 225 %3D mm internal diameter and 1500 m long. Miscellaneous losses due to fitting and valve equivalent to 600 pipe diameters. The maximum liquid level in the storage tank is 50 m above the lowest level in the benzene tank. The storage tank has a floating roof, which exerts a pressure of 1.1 bar on the liquid. The used pump must be unloaded 1000 tons within 4 hours. Estimate the power required by the pump. Take the pump efficiency as 70 percent. The density and viscosity of benzene are 881 kg/m³, and 0.6807 mN s/m², respectively. Note: re-calculate the pipe diameter using the same pump power if it was used for water.
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