Question 7 Consider a water tube boiler that produces an average of 10,000 lb/hr of steam with 20% makeup that has 100 ppm of TDS and 10 ppm of hardness. It is planned to switch from ion exchange to RO softening. Ion exchange yields a exit hardness of 1 ppm and RO softening yields an exit TDS of 3 ppm. Boiler water TDS must be maintained at 3000 ppm for either

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
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Question 7
Consider a water tube boiler that produces an average of 10,000 lb/hr of steam with
20%
makeup that has 100 ppm of TDS and 10 ppm of hardness. It is planned to switch
from ion
exchange to RO softening. Ion exchange yields a exit hardness of 1 ppm and RO
softening
yields an exit TDS of 3 ppm. Boiler water TDS must be maintained at 3000 ppm
for either
Transcribed Image Text:Question 7 Consider a water tube boiler that produces an average of 10,000 lb/hr of steam with 20% makeup that has 100 ppm of TDS and 10 ppm of hardness. It is planned to switch from ion exchange to RO softening. Ion exchange yields a exit hardness of 1 ppm and RO softening yields an exit TDS of 3 ppm. Boiler water TDS must be maintained at 3000 ppm for either
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