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refrigerant at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 788 kPa, the entire refrigerant in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of refrigerant that has entered the tank, and (c) the heat transfer between the system and the surroundings. R-134a 1 MPa 100°C 0.2 m R-134a

refrigerant at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 788 kPa, the entire refrigerant in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of refrigerant that has entered the tank, and (c) the heat transfer between the system and the surroundings. R-134a 1 MPa 100°C 0.2 m R-134a

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
Problem 1.1MA
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3 A 0.2-m rigid tank initially contains refrigerant-134a at 8°C. At this state, 38% of the mass is in the liquid phase. The tank is connected by a valve to a supply line where refrigerant at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 788 kPa, the entire refrigerant in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of refrigerant that has entered the tank, and (c) the heat transfer between the system and the surroundings. R-134a 1 MPa 100°C 0.2 m R-134a The energy balance of the system is:
Transcribed Image Text:3 A 0.2-m rigid tank initially contains refrigerant-134a at 8°C. At this state, 38% of the mass is in the liquid phase. The tank is connected by a valve to a supply line where refrigerant at 1 MPa, 100°C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 788 kPa, the entire refrigerant in the tank exists in the vapor phase only. At this point the valve is closed. Determine (a) the final temperature in the tank, (b) the mass of refrigerant that has entered the tank, and (c) the heat transfer between the system and the surroundings. R-134a 1 MPa 100°C 0.2 m R-134a The energy balance of the system is:
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