A single-effect evaporator is being used to concentrate 200 kg/hour of liquor from 10 wt% solids to 50wt% solids. Steam is available at 5 bar (absolute) and the liquor-side of the evaporator is open to atmosphere. If the feed stream enters the evaporator at 35°C, calculate:i) the amount of steam (in kg/hour) requiredii) the heat transfer area requiredAssume:● the overall heat transfer coefficient is 1 kW m-2 K-1● the specific heat capacity of the feed is 4 kJ kg-1 K-1● heat loss from the unit is 4 kW● boiling point elevation is 3 °C A single-effect evaporator is being used to concentrate 200 kg/hour of liquor from 10 wt%solids to 50wt% solids. Steam is available at 5 bar (absolute) and the liquor-side of theevaporator is open to atmosphere. If the feed stream enters the evaporator at 35°C, calculate:i) the amount of steam (in kg/hour) requiredii) the heat transfer area requiredAssume:the overall heat transfer coefficient is 1 kW m² K'the specific heat capacity of the feed is 4 kJ kg' K'heat loss from the unit is 4 kW• boiling point elevation is 3 °C

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Answered: A single-effect evaporator is being…

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 single-effect evaporator is being used to concentrate 200 kg/hour of liquor from 10 wt% solids to 50wt% solids. Steam is available at 5 bar (absolute) and the liquor-side of the evaporator is open to atmosphere. If the feed stream enters the evaporator at 35°C, calculate:
i) the amount of steam (in kg/hour) required
ii) the heat transfer area required
Assume:
● the overall heat transfer coefficient is 1 kW m-2 K-1
● the specific heat capacity of the feed is 4 kJ kg-1 K-1
● heat loss from the unit is 4 kW
● boiling point elevation is 3 °C