4. A feed of 4535 kg/h of a 2.0 wt%. Salt solution at 311°K enters continuously a single effect evaporator and is being concentrated to 3.0%. The evaporation is at atmosphere pressure and the area of the evaporator is 69.7 m². Saturated steam at 383.2°K is supplied for heating. Since solution is dilute, it can be assumed to have the same boiling point as water. The heat capacity of the feed can be taken as Cp= 4.1J/kgºK. The overall heat transfer coefficient is a. 1820w/m²K b. 812W/m2K c. 1920w/m²K d. 1850w/m2K
4. A feed of 4535 kg/h of a 2.0 wt%. Salt solution at 311°K enters continuously a single effect evaporator and is being concentrated to 3.0%. The evaporation is at atmosphere pressure and the area of the evaporator is 69.7 m². Saturated steam at 383.2°K is supplied for heating. Since solution is dilute, it can be assumed to have the same boiling point as water. The heat capacity of the feed can be taken as Cp= 4.1J/kgºK. The overall heat transfer coefficient is a. 1820w/m²K b. 812W/m2K c. 1920w/m²K d. 1850w/m2K
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:4. A feed of 4535 kg/h of a 2.0 wt%. Salt solution at 311°K enters continuously a single effect evaporator and is being
concentrated to 3.0%. The evaporation is at atmosphere pressure and the area of the evaporator is 69.7 m².
Saturated steam at 383.2°K is supplied for heating. Since solution is dilute, it can be assumed to have the same
boiling point as water. The heat capacity of the feed can be taken as Cp= 4.1J/kgºK. The overall heat transfer
coefficient is
a. 1820w/m²K
b. 812W/m²K
c. 1920w/m2K
d. 1850w/m2K
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