Answered: 3. The air having a dry ball…

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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3. The air having a dry ball temperature of 34 ° C and a wet bulb temperature of 22 ° C is initially heated in a heater so that the dry ball temperature increases to 90 ° C. Then the air is passed through the corn pile to dry. The air that comes out of the corn kernels is at a dry bulb temperature of 60 ° C. Then this air is passed to the dehumidifier to lower its RH to 10%. Draw the course of this process of changing the air on a psychrometric diagram. The airflow rate through the corn pile and dehumidifier is 4.0 m / s and the cross-sectional diameter of the pile is 0.5 m. A. Determine the amount of air lost from the pile of corn kernels (in grams of water / second) =(grams of air / second). b. Determine the amount of air lost from the air when passing through the dehumidifier (in grams of air / second) = (grams of air / second)

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