Answered: Bottom Top Water temperature, °F 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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Question

Overall mass-transfer coefficient for a packed cooling tower.
A cooling-tower packing was tested in a small column. At two points in the column, 0.7 ft apart, the data below apply. Calculate the overall volumetric mass-transfer coefficient K_ya that can be used to design a large, packed-bed cooling tower, where a is the masstransfer area, A, per unit volume, V, of tower.

Bottom
Top
Water temperature, °F
Water vapor pressure, psia
120
126
1.69
1.995
Mole fraction H,O in air
0.001609
0.0882
Total pressure, psia
14.1
14.3
Air rate, Ibmol/h
0.401
0.401
Column cross-sectional area, fr
0.5
0.5
Water rate, Ibmol/h (approximation)
20
20

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