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Figure.Q1 shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 10000 kg/h of NAOH solution and 8000 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. in) If the temperature of steam increases, what changes happen in steam economy.

Figure.Q1 shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 10000 kg/h of NAOH solution and 8000 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. in) If the temperature of steam increases, what changes happen in steam economy.

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
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Figure.Q1 shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 10000 kg/h of NaOH solution and 8000 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. i) If the temperature of steam increases, what changes happen in steam economy. T=120 °C 50% NAOH 20% NaOH
Transcribed Image Text:Figure.Q1 shows an evaporator to concentrate the sodium hydroxide solution at 90 °C. The volume flowrate which enters the evaporator is 10000 kg/h of NaOH solution and 8000 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. i) If the temperature of steam increases, what changes happen in steam economy. T=120 °C 50% NAOH 20% NaOH
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