In a heat exchanger two stream of water mix to each other at 300 kPa constant pressure. The cold stream is at 30°C and the hot stream is at 120°C. Mass flow rate of cold stream is 3 kg/s, and the control volume loses heat to the surrounding air at 30°C at a rate of 1800 kJ/min. If the mixture leaves the mixing chamber at 75°C.

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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In a heat exchanger two stream of water mix to each other at 300 kPa constant pressure. The cold stream
is at 30°C and the hot stream is at 120°C. Mass flow rate of cold stream is 3 kg/s, and the control volume
loses heat to the surrounding air at 30°C at a rate of 1800 kJ/min. If the mixture leaves the mixing
chamber at 75°C.
Transcribed Image Text:In a heat exchanger two stream of water mix to each other at 300 kPa constant pressure. The cold stream is at 30°C and the hot stream is at 120°C. Mass flow rate of cold stream is 3 kg/s, and the control volume loses heat to the surrounding air at 30°C at a rate of 1800 kJ/min. If the mixture leaves the mixing chamber at 75°C.
2) What is the rate of entropy generation during this mixing process? (20
20 puan
pts)
1.058
0.231
O 0.132
O 1.132
Transcribed Image Text:2) What is the rate of entropy generation during this mixing process? (20 20 puan pts) 1.058 0.231 O 0.132 O 1.132
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