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of 0.2. The pressure is held constant by nitrogen gas acting against a flexible bladder as shown. The valve is opened between the tank and a supply line carrying R134a at 1.0 MPa, 120°C. The pressure regulator allows the pressure in the tank to remain constant as the bladder expands. The valve between the line and the tank is closed at the instant when the quality is 0.95. If the entropy generation amounts to 1 kJ/K, determine the (a) mass of R134a admitted to the tank, in kg and the (b) heat transferred in kJ. Use AT(K) = AT (°C) + 273. Show your mass, energy, and entropy balance equations at the start of your solution.

of 0.2. The pressure is held constant by nitrogen gas acting against a flexible bladder as shown. The valve is opened between the tank and a supply line carrying R134a at 1.0 MPa, 120°C. The pressure regulator allows the pressure in the tank to remain constant as the bladder expands. The valve between the line and the tank is closed at the instant when the quality is 0.95. If the entropy generation amounts to 1 kJ/K, determine the (a) mass of R134a admitted to the tank, in kg and the (b) heat transferred in kJ. Use AT(K) = AT (°C) + 273. Show your mass, energy, and entropy balance equations at the start of your solution.

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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A tank contains 12 kg of R134a, initially at 2°C with a quality of 0.2. The pressure is held constant by nitrogen gas acting against a flexible bladder as shown. The valve is opened between the tank and a supply line carrying R134a at 1.0 MPa, 120°C. The pressure regulator allows the pressure in the tank to remain constant as the bladder expands. The valve between the line and the tank is closed at the instant when the quality is 0.95. If the entropy generation amounts to 1 kJ/K, determine the (a) mass of R134a admitted to the tank, in kg and the (b) heat transferred in kJ. Use AT (K) = AT (°C) + 273. Show your mass, energy, and entropy balance equations at the start of your solution. Pressure-regulating valve N₂ Refrigerant 134a Nitrogen supply - Flexible bladder Tank Line: 1000 kPa, 120 °C
Transcribed Image Text:A tank contains 12 kg of R134a, initially at 2°C with a quality of 0.2. The pressure is held constant by nitrogen gas acting against a flexible bladder as shown. The valve is opened between the tank and a supply line carrying R134a at 1.0 MPa, 120°C. The pressure regulator allows the pressure in the tank to remain constant as the bladder expands. The valve between the line and the tank is closed at the instant when the quality is 0.95. If the entropy generation amounts to 1 kJ/K, determine the (a) mass of R134a admitted to the tank, in kg and the (b) heat transferred in kJ. Use AT (K) = AT (°C) + 273. Show your mass, energy, and entropy balance equations at the start of your solution. Pressure-regulating valve N₂ Refrigerant 134a Nitrogen supply - Flexible bladder Tank Line: 1000 kPa, 120 °C
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