In a continues dryer, 500 kg/h wet cat feed containing 60 % moisture is to be dried to reduce moisture content to 10%. The air enters the dryer at 100°C with 47°C wet bulb temperature, and exit air leaves the dryer at 53°C with 60% relative humidity. Some part of the exit air sent to a preheater and it mixed with the fresh air at 21°C and 52% relative humidity. Calculate: a) the amount of fresh air entering the preheater b) heat should be supplied to the preheater (Neglect the heat loss to the surroundings)
In a continues dryer, 500 kg/h wet cat feed containing 60 % moisture is to be dried to reduce moisture content to 10%. The air enters the dryer at 100°C with 47°C wet bulb temperature, and exit air leaves the dryer at 53°C with 60% relative humidity. Some part of the exit air sent to a preheater and it mixed with the fresh air at 21°C and 52% relative humidity. Calculate: a) the amount of fresh air entering the preheater b) heat should be supplied to the preheater (Neglect the heat loss to the surroundings)
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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In a continues dryer, 500 kg/h wet cat feed containing 60 % moisture is to be
dried to reduce moisture content to 10%. The air enters the dryer at 100°C
with 47°C wet bulb temperature, and exit air leaves the dryer at 53°C with
60% relative humidity. Some part of the exit air sent to a preheater and it
mixed with the fresh air at 21°C and 52% relative humidity.
Calculate:
a) the amount of fresh air entering the preheater
b) heat should be supplied to the preheater
(Neglect the heat loss to the surroundings)
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