An incoming air flow of 200 m3/h at a temperature of 20°C and a humidity ratio of 0.012 kgv/kga is mixed in a chamber with another incoming air flow of 500 m3/h at a temperature of 15°C and a humidity ratio of 0.008 kgv/kga.   Based on the corresponding mass flow rates (and NOT the original volumetric flow rates) determine: a)      The mass flow rate of the mixed air (i.e., the combination of the two flows) leaving the chamber in kg/s. b)      The temperature of the mixed air leaving the chamber.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An incoming air flow of 200 m3/h at a temperature of 20°C and a humidity ratio of 0.012 kgv/kga is mixed in a chamber with another incoming air flow of 500 m3/h at a temperature of 15°C and a humidity ratio of 0.008 kgv/kga.

 

Based on the corresponding mass flow rates (and NOT the original volumetric flow rates) determine:

a)      The mass flow rate of the mixed air (i.e., the combination of the two flows) leaving the chamber in kg/s.

b)      The temperature of the mixed air leaving the chamber.

Please use PyscPro software for solving this question.

 

Notes:

For part (a), you will first need to find the density or specific volume for each state (density = 1/specific volume).

The units the 'v' and 'a' are intended as subscripts:

·         kgv = kg_v = kgv = kilogram(s) [vapour]

kga = kg_a =kga = kilogram(s) [air]

 

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