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Water at 200 kPa and 45°C is heated in a chamber by mixing it with steam at 200 kPa and 200°C. The cold water enters the mixing chamber at a rate of 3.9 kg/s and the chamber loses heat at a rate of 950 kJ/min to the surrounding air at 22°C. The water leaving the chamber is at 200 kPa and 80°C. What is the mass flow rate of the hot steam that enters the mixing chamber? kg What is the rate of change of entropy of the water inside the mixing chamber? kW K What is the rate of entropy generation for this given process? kW K

Water at 200 kPa and 45°C is heated in a chamber by mixing it with steam at 200 kPa and 200°C. The cold water enters the mixing chamber at a rate of 3.9 kg/s and the chamber loses heat at a rate of 950 kJ/min to the surrounding air at 22°C. The water leaving the chamber is at 200 kPa and 80°C. What is the mass flow rate of the hot steam that enters the mixing chamber? kg What is the rate of change of entropy of the water inside the mixing chamber? kW K What is the rate of entropy generation for this given process? kW K

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Water at 200 kPa and 45°C is heated in a chamber by mixing it with steam at 200 kPa and 200°C. The cold water enters the mixing chamber at a rate of 3.9 kg/s and the chamber loses heat at a rate of 950 kJ/min to the surrounding air at 22°C. The water leaving the chamber is at 200 kPa and 80°C. What is the mass flow rate of the hot steam that enters the mixing chamber? kg What is the rate of change of entropy of the water inside the mixing chamber? kW K What is the rate of entropy generation for this given process? kW K
Transcribed Image Text:Water at 200 kPa and 45°C is heated in a chamber by mixing it with steam at 200 kPa and 200°C. The cold water enters the mixing chamber at a rate of 3.9 kg/s and the chamber loses heat at a rate of 950 kJ/min to the surrounding air at 22°C. The water leaving the chamber is at 200 kPa and 80°C. What is the mass flow rate of the hot steam that enters the mixing chamber? kg What is the rate of change of entropy of the water inside the mixing chamber? kW K What is the rate of entropy generation for this given process? kW K
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