Please show full working in steps 5) Outdoor air enters an air-conditioning system at 10°C and 70% RH at a steady rate of 35m³/min, and it leaves at 20°C and 60% RH. The outdoor air is first heated to 19.5°C in theheating section and then humidified by the injection of hot steam in the humidifying section.Assuming the entire process takes place at a pressure of 1 atm, determine (a) the rate of heatsupply in the heating section and (b) the mass flow rate of steam in the humidifying section.

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Answered: 5) Outdoor air enters an…

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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Please show full working in steps

5) Outdoor air enters an air-conditioning system at 10°C and 70% RH at a steady rate of 35
m³/min, and it leaves at 20°C and 60% RH. The outdoor air is first heated to 19.5°C in the
heating section and then humidified by the injection of hot steam in the humidifying section.
Assuming the entire process takes place at a pressure of 1 atm, determine (a) the rate of heat
supply in the heating section and (b) the mass flow rate of steam in the humidifying section.

Expert Solution

Step 1: Calculate the rate of heat supply and the mass flow rate of steam

$bold Given bold colon Outdoor space air space condition comma space straight T subscript 1 equals 10 to the power of straight o straight C space and space straight ϕ subscript 1 equals 70 percent sign The space volumetric space flow space rate space of space outdoor space air comma space straight V with dot on top subscript 1 equals 35 space straight m cubed divided by min Exit space air space condition comma space straight T subscript 3 equals 20 to the power of straight o straight C space and space straight ϕ subscript 3 equals 60 percent sign Temperature space of space air space after space heating comma space straight T subscript 2 equals 19.5 to the power of straight o straight C bold Find bold colon open parentheses straight a close parentheses space The space rate space of space heat space supply space in space the space heating space section open parentheses straight b close parentheses space The space mass space flow space rate space of space steam space in space the space humidifying space section$

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