A hot-water stream at 90 °C enters an insulated mixing chamber with a mass flow rate of mh=0.75 kg/s where it is mixed with a stream of cold water at 25°C in a steady state steady flow process. It is desired that the mixture leaves the chamber at 45°C as shown in the Figure Hot water P₁=300 kPa T₁=90°C m-0.75 kg/s Cold water P=300 kPa T:=25%C m=? 2 Mixing Chamber Mixed warm water Ps-300 kPa T=45°C m3

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 5
By making mass balance and energy balance on
the control volume, the computed value of the
mass flow rate of the cold water, mc, in kg/s is
Transcribed Image Text:Question 5 By making mass balance and energy balance on the control volume, the computed value of the mass flow rate of the cold water, mc, in kg/s is
A hot-water stream at 90 °C enters an
insulated mixing chamber with a mass
flow rate of mh=0.75 kg/s where it is
mixed with a stream of cold water at
25°℃ in a steady state steady flow
process. It is desired that the mixture
leaves the chamber at 45°C as shown in
the Figure
Hot water
P₁=300 kPa
T₁=90°C
-0.75 kg/s
Cold water
P-300 kPa
T₁=25%
m=?
1
2
Mixing
Chamber
3
Mixed warm water
P-300 kPa
T=45°C
m3
Transcribed Image Text:A hot-water stream at 90 °C enters an insulated mixing chamber with a mass flow rate of mh=0.75 kg/s where it is mixed with a stream of cold water at 25°℃ in a steady state steady flow process. It is desired that the mixture leaves the chamber at 45°C as shown in the Figure Hot water P₁=300 kPa T₁=90°C -0.75 kg/s Cold water P-300 kPa T₁=25% m=? 1 2 Mixing Chamber 3 Mixed warm water P-300 kPa T=45°C m3
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