A centrifugal pump is required to circulate a liquid of density 800 kg/m3 and viscosity 0.5 x 10³ Ns/m³ from the reboiler of a distillation column through a vaporiser at the rate of 0.004 m³/s, and to introduce the superheated vapour above the vapour space in the reboiler which contains a 0.07 m depth of liquid. If smooth-bore 25 mm diameter pipe is to be used, the pressure of vapour in the reboiler is I kN/m² and the Net Positive Suction Head required by the pump is 2 m of liquid, what is the minimum height required between the liquid level in the reboiler and the pump?
A centrifugal pump is required to circulate a liquid of density 800 kg/m3 and viscosity 0.5 x 10³ Ns/m³ from the reboiler of a distillation column through a vaporiser at the rate of 0.004 m³/s, and to introduce the superheated vapour above the vapour space in the reboiler which contains a 0.07 m depth of liquid. If smooth-bore 25 mm diameter pipe is to be used, the pressure of vapour in the reboiler is I kN/m² and the Net Positive Suction Head required by the pump is 2 m of liquid, what is the minimum height required between the liquid level in the reboiler and the pump?
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 centrifugal pump is required to circulate a liquid of density 800 kg/m3 and viscosity
0.5 x 10³ Ns/m² from the reboiler of a distillation column through a vaporiser at the rate
of 0.004 m³/s, and to introduce the superheated vapour above the vapour space in the
reboiler which contains a 0.07 m depth of liquid. If smooth-bore 25 mm diameter pipe is
to be used, the pressure of vapour in the reboiler is I kN/m² and the Net Positive Suction
Head required by the pump is 2 m of liquid, what is the minimum height required
between the liquid level in the reboiler and the pump?
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