Answered: Benzene at 20oC is pumped from one…

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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Benzene at 20oC is pumped from one storage tank to a reactor (density=878 kg/m3
). Volumetric flow rate
of benzene is 9.5x10-4
m3
/s. The difference in the elevations of the two unit is 40m. The tank which serves
as a source is open to the atmosphere while the tank which receives the benzene has a pressure of P2 kPa
abs in the vapor space above the benzene. 1-in, schedule-40 steel pipe and 2-in Sch-40 steel pipe is used in
suction and discharge line respectively. Total friction loss of the system given as 135 J/kg . Pressure gauges
in the pipeline at the inlet and outlet of the pump read (P3) 34.5kPa and (P4) 1051.6kPa, respectively.
Efficiency of pump is %75
a) Calculate the power of pump (kW).
b) Determine the pressure in reactor P2 (kPa).

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