In order to concentrate 4536 kg/h of an NaOH solution containing 10 wt% to 20 wt% solution, a single – effect evaporator is being used, with an area of 37.6 m2 The feed enters at 21.1 oC. Saturated steam at 100 oC is used for heating and the pressure in the vapor space of the evaporator is 51.7 kPa. Calculate the kg/h of steam used and the overall heat – transfer coefficient if: a. There is a negligible boiling point elevation b. There is a considerable boiling point elevation
In order to concentrate 4536 kg/h of an NaOH solution containing 10 wt% to 20 wt% solution, a single – effect evaporator is being used, with an area of 37.6 m2 The feed enters at 21.1 oC. Saturated steam at 100 oC is used for heating and the pressure in the vapor space of the evaporator is 51.7 kPa. Calculate the kg/h of steam used and the overall heat – transfer coefficient if: a. There is a negligible boiling point elevation b. There is a considerable boiling point elevation
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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In order to concentrate 4536 kg/h of an NaOH solution containing 10 wt% to 20
wt% solution, a single – effect evaporator is being used, with an area of 37.6 m2
The feed enters at 21.1 oC. Saturated steam at 100 oC is used for heating and the
pressure in the vapor space of the evaporator is 51.7 kPa. Calculate the kg/h of
steam used and the overall heat – transfer coefficient if:
a. There is a negligible boiling point elevation
b. There is a considerable boiling point elevation
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