Seawater containing 3.50 wt% salt passes through a series of 8 evaporators. Roughly equal quantities of water are vaporized in each of the 8 units and then condensed and combined to obtain a product stream of fresh water. The brine leaving each evaporator but the 8th is fed to the next evaporator. The brine leaving the 8th evaporator contains 4.70 wt% salt. It is desired to produce 2 x 104 L/h of fresh water.
Seawater containing 3.50 wt% salt passes through a series of 8 evaporators. Roughly equal quantities of water are vaporized in each of the 8 units and then condensed and combined to obtain a product stream of fresh water. The brine leaving each evaporator but the 8th is fed to the next evaporator. The brine leaving the 8th evaporator contains 4.70 wt% salt. It is desired to produce 2 x 104 L/h of fresh water.
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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Transcribed Image Text:Seawater containing 3.50 wt% salt passes through
a series of 8 evaporators.
Roughly equal quantities of water are vaporized in
each of the 8 units and then condensed and
combined to obtain a product stream of fresh
water.
The brine leaving each evaporator but the 8th is
fed to the next evaporator.
The brine leaving the 8th evaporator contains 4.70
wt% salt.
It is desired to produce 2 x 104 L/h of fresh water.
Transcribed Image Text:Show all the details in flow diagram and label all
stream.
A.) How much seawater must be fed to the process
and what is the mass flow rate of concentrated
brine out of the process? (answer in kg/h)
B.) What is the weight percent of salt in the outlet
from the 5th evaporator.(answer in wt%salt)
C.) What is the fractional yield of fresh water from
the process (kg H2O recovered/kg H2O in process
feed).
Please show your solution and write readable.
Thank you.
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