chamber at 100 kPa and 75°C, determine (a) the mass flow rate of the superheated steam, (b) the exergy destruction during this mixing process, (c) the exergy recovered during this mixing process and (d) the

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 3
Liquid water at 100 kPa and 25°C is heated in a chamber by mixing it with superheated steam at 100
kPa and 300°C. Liquid water enters the mixing chamber at a rate of 3.4 kg/s, and the chamber is estimated
to lose heat to the surrounding air at 25°C at a rate of 2100 kJ/min. If the mixture leaves the mixing
chamber at 100 kPa and 75°C, determine (a) the mass flow rate of the superheated steam, (b) the exergy
destruction during this mixing process, (c) the exergy recovered during this mixing process and (d) the
second-law efficiency of the mixing chamber.
2100 kJ/min
25°C
3.4 kg/s
Mixing
chamber
75°C
100 kPa
300°C
Transcribed Image Text:Question 3 Liquid water at 100 kPa and 25°C is heated in a chamber by mixing it with superheated steam at 100 kPa and 300°C. Liquid water enters the mixing chamber at a rate of 3.4 kg/s, and the chamber is estimated to lose heat to the surrounding air at 25°C at a rate of 2100 kJ/min. If the mixture leaves the mixing chamber at 100 kPa and 75°C, determine (a) the mass flow rate of the superheated steam, (b) the exergy destruction during this mixing process, (c) the exergy recovered during this mixing process and (d) the second-law efficiency of the mixing chamber. 2100 kJ/min 25°C 3.4 kg/s Mixing chamber 75°C 100 kPa 300°C
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