Answered: In the process of air conditioning in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. In the process of air conditioning in a humidifier, the air at a dry bulb temperature of 20 °C and 25% RH increases its RH to 40%. Determine the amount of moisture added in the humidifier per kg of dry air. = (kg water/kg air).

2. The air has a dry bulb temperature of 34 °C and a wet bulb temperature of 22°C. The liquid is heated in a heater so that the dry bulb temperature increases to 80 °C. Then the air is passed through the corn kernels to dry. The air coming out of the corn kernels is at bulb temperature. dry 55 °C Then this air is passed to the dehumidifier to reduce its RH to 10%. Draw the course of the air change process on a psychrometric diagram. The rate of air flow through the corn kernels and dehumidifier is 4.0 m/s and the cross-sectional diameter of the pile is 0.7 m.

a) Determine the amount of water content lost from the pile of corn kernels (in grams of water/second)

b) Determine the amount of water content lost from the air when passing through the dehumidifier (in grams of water/second)

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