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Moist air (2.27 mol% H>O) at 25°C and 100 kPa is to be dehumidified so that during its passage through za large cold room used for storage excess, ice formation can be avoided on the chilling coils in the room. Two suggestions have been offered: (1) Cooling the moist air at constant pressure (2) Compressing the moist air at constant temperature 1. If 60% of the initial water in the entering moist air is to be condensed out, to what temperature should the air in process (1) be cooled? 2. What pressure should the moist air in process (2) reach for the same percent removal of water (60%)? Moist Dehumidifie PROCESS air Condensed water Additional information: B log 10 Psat [mm Hg] = A –; Component MW A B T[C] + C Water 18 8.14019 1810.94 244.485

Moist air (2.27 mol% H>O) at 25°C and 100 kPa is to be dehumidified so that during its passage through za large cold room used for storage excess, ice formation can be avoided on the chilling coils in the room. Two suggestions have been offered: (1) Cooling the moist air at constant pressure (2) Compressing the moist air at constant temperature 1. If 60% of the initial water in the entering moist air is to be condensed out, to what temperature should the air in process (1) be cooled? 2. What pressure should the moist air in process (2) reach for the same percent removal of water (60%)? Moist Dehumidifie PROCESS air Condensed water Additional information: B log 10 Psat [mm Hg] = A –; Component MW A B T[C] + C Water 18 8.14019 1810.94 244.485

Introduction to Chemical Engineering Thermodynamics
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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Moist air (2.27 mol% H>O) at 25°C and 100 kPa is to be dehumidified so Moist Dehumidified that during its passage through za large cold room used for storage excess, ice formation can be avoided on the chilling coils in the room. Two suggestions have been offered: (1) Cooling the moist air at constant pressure (2) Compressing the moist air at constant temperature 1. If 60% of the initial water in the entering moist air is to be condensed out, to what temperature should the air in process (1) be cooled? 2. What pressure should the moist air in process (2) reach for the same percent removal of water (60%)? PROCESS air air Condensed water Additional information: В log 10 Psat [mm Hg] = A – Component A В T[°C] + C Water 18 8.14019 1810.94 244.485
Transcribed Image Text:Moist air (2.27 mol% H>O) at 25°C and 100 kPa is to be dehumidified so Moist Dehumidified that during its passage through za large cold room used for storage excess, ice formation can be avoided on the chilling coils in the room. Two suggestions have been offered: (1) Cooling the moist air at constant pressure (2) Compressing the moist air at constant temperature 1. If 60% of the initial water in the entering moist air is to be condensed out, to what temperature should the air in process (1) be cooled? 2. What pressure should the moist air in process (2) reach for the same percent removal of water (60%)? PROCESS air air Condensed water Additional information: В log 10 Psat [mm Hg] = A – Component A В T[°C] + C Water 18 8.14019 1810.94 244.485
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