, shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 12000 kg/h of NaOH solution and 7500 kg/h of steam has been used i) Calculate the mass flow rate of the concentrated NaOH solution. ii) Determine the steam economy of the evaporator. iii) If the temperature of steam increases, what changes happen in steam economy. T-120 °C 50% NaOH 20% NaOH

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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11:-1
46 ull VOLTE OMANTEL
K/s
shows an evaporator to
concentrate the sodium hydroxide solution
at 90 °C. The volume flowrate which enters
the evaporator is 12000 kg/h of NaOH
solution and 7500 kg/h of steam has been
used
i)
Calculate the mass flow rate of the
concentrated NaOH solution.
ii)
Determine the steam economy of the
evaporator.
iii) If the temperature of steam increases,
what changes happen in steam economy.
T;=120 °C
50% NaOH
20% NaOH
Fig.Q1
Transcribed Image Text:11:-1 46 ull VOLTE OMANTEL K/s shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 12000 kg/h of NaOH solution and 7500 kg/h of steam has been used i) Calculate the mass flow rate of the concentrated NaOH solution. ii) Determine the steam economy of the evaporator. iii) If the temperature of steam increases, what changes happen in steam economy. T;=120 °C 50% NaOH 20% NaOH Fig.Q1
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