Answered: Please trace this process on the given…

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

See similar textbooks

Related questions

Question

Please trace this process on the given psychrometric chart.

A crystalline solid is to be dried from 85% moisture content to 5% final moisture content. For this purpose, pre-heated air is used. Air at 53°C dry-bulb temperature and 35°C wet-bulb temperature (A) is mixed with wet air (D) coming from the dryer at the ratio A’ (dry air in A) to D’ (dry air in D) is equal to 1. The air mixture is cooled to 20°C (B), preheated to 87°C dry-bulb temperature at constant humidity (C) and fed to the dryer. In the dryer, it can be assumed that air undergoes a constant wet-bulb temperature process up to 30% humidity, exiting with the same conditions as the fresh air feed. Part of the wet air exiting the dryer is recycled (D) joining the feed air (A) to the air-cooling system.

Note that the conditions given are:
1. Stream A: DBT = 53°C, WBT = 35°C
2. Stream B: DBT = 20°C
3. Stream C: DBT = 87°C
4. Stream D: %Humidity = 30%, constant-wet bulb