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Liquid water at 500 kPa and 20°C (state 1) flows into a mixing chamber. There, it is mixed with water vapor at 500 kPa and 250°C (state 2) at a rate of 10 kg/min. The mixture exits at 500 kPa and 100°C (state 3). The flow is steady. The mixing chamber loses heat to the surroundings at a rate of 500 kJ/min. Neglect changes in the kinetic and potential energy of the mass flows. The temperature and pressure of the surroundings of the mixing chamber are 20°C and 100 kPa. a) Calculate the mass flow rate of the water vapor (state 1) in kg/s.b) Calculate the entropy generation rate in kW/K and the exergy destruction rate Xdestroyedc) Calculate the exergy rate of the mixture in state 3 in kW.

Liquid water at 500 kPa and 20°C (state 1) flows into a mixing chamber. There, it is mixed with water vapor at 500 kPa and 250°C (state 2) at a rate of 10 kg/min. The mixture exits at 500 kPa and 100°C (state 3). The flow is steady. The mixing chamber loses heat to the surroundings at a rate of 500 kJ/min. Neglect changes in the kinetic and potential energy of the mass flows. The temperature and pressure of the surroundings of the mixing chamber are 20°C and 100 kPa. a) Calculate the mass flow rate of the water vapor (state 1) in kg/s.b) Calculate the entropy generation rate in kW/K and the exergy destruction rate Xdestroyedc) Calculate the exergy rate of the mixture in state 3 in kW.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Liquid water at 500 kPa and 20°C (state 1) flows into a mixing chamber. There, it is mixed with water vapor at 500 kPa and 250°C (state 2) at a rate of 10 kg/min. The mixture exits at 500 kPa and 100°C (state 3). The flow is steady. The mixing chamber loses heat to the surroundings at a rate of 500 kJ/min. Neglect changes in the kinetic and potential energy of the mass flows. The temperature and pressure of the surroundings of the mixing chamber are 20°C and 100 kPa.

a) Calculate the mass flow rate of the water vapor (state 1) in kg/s.
b) Calculate the entropy generation rate in kW/K and the exergy destruction rate Xdestroyed
c) Calculate the exergy rate of the mixture in state 3 in kW.

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