A closed, rigid tank contains R-134a, initially at 100°C. The refrigerant is cooled until it has...
A closed, rigid tank contains R-134a, initially at 100°C. The refrigerant is cooled until it has a quality of 98.26% at 20°C. For the refrigerant, determine: a. (3) A T-v diagram labeling state 1 and 2 b. (12) The initial and final pressures, in bar c. (10) The heat transfer and work for the process, each in kJ/kg
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A closed, rigid tank contains R-134a, initially at 100°C. The
refrigerant is cooled until it has...
1- A fixed mass rigid tank is filled with Refrigerant-134a. Assuming initially, R-134a is under 160...
1- A fixed mass rigid tank is filled with Refrigerant-134a. Assuming initially, R-134a is under 160 psia and saturated condition (quality, x, = 1.0). The volume of tank is 20 ft. Then it went through a process until the final pressure, P, reduced to 50 psia, and the heat transfer occurred during this process. Determine (a) the final temperature, (b) the amount of R-134a been condensed, (c) the net heat transfer. (15 points)
A 0.145 m rigid tank initially contains refrigerant-134a at 1 MPa and 100 percent quality. The...
A 0.145 m rigid tank initially contains refrigerant-134a at 1 MPa and 100 percent quality. The tank is connected by a valve to a supply line that carries refrigerant-134a ad.2 MPa and 36°C. Now the valre is opened, and the refrigerant is allowed to enter the tank. The valve is closed when it is observed that the tank contains saturated liquid atl.2 MPa. Determine (a) the mass of the refrigerant that has entered the tank 156.057g(Kound to three decimal places)...
A 0.7-m3 rigid tank contains refrigerant-134a initially at 160 kPa and 40 percent quality. Heat is...
A 0.7-m3 rigid tank contains refrigerant-134a initially at 160 kPa and 40 percent quality. Heat is now transferred to the refrigerant until the pressure reaches 600 kPa. Determine the amount of heat transferred.
(4 points) A-C line Liquid R-134a A rigid container containing 6.8 kg of saturated liquid R-134a...
(4 points) A-C line Liquid R-134a A rigid container containing 6.8 kg of saturated liquid R-134a at 26°C is used to fill an air- conditioning system. A valve is opened and allows liquid R-134a to escape the tank into the A-C line until only 0.85 kg of R-134a remains in the tank, at which point the valve is closed. During the process, heat transfer is allowed to occur to maintain the tank temperature at 26 °C. What is the quality...
A 0.6 m3 rigid tank initially contains refrigerant-134a in saturated vapor form at 0.9 MPa ....
A 0.6 m3 rigid tank initially contains refrigerant-134a in saturated vapor form at 0.9 MPa . As a result of heat transfer from the refrigerant, the pressure drops to 240 kPa. Use TESTCalc to answer the following questions. a) Determine the final temperature (T2). b) Determine the amount of refrigerant that condenses. c) Determine the heat transfer (Q).
A 17-ft3 rigid tank initially contains saturated refrigerant-134a vapor at 160 psia. As a result of...
A 17-ft3 rigid tank initially contains saturated refrigerant-134a vapor at 160 psia. As a result of heat transfer from the refrigerant, the pressure drops to 50 psia. a.) Determine the final temperature. Use data from refrigerant tables. (Please provide an answer before moving on to the next part.) b.) Determine the amount of refrigerant that has condensed.(lbm) (Please provide an answer before moving on to the next part.) c.) Determine the heat transfer. (Btu)
4. A 1.5-m rigid tank is initially empty. Refrigerant (R-134a) in the supply line at 750kPa...
4. A 1.5-m rigid tank is initially empty. Refrigerant (R-134a) in the supply line at 750kPa and 20°C is connected to the well-insulated tank through a valve. The valve is opened, and R-134a enters the tank until the pressure in the tank reaches the pressure of 500 kPa, at which point the valve is closed. (a) Write the assumptions. (b) Show the 1" law of thermodynamics with a control volume. (c) Determine the final temperature in the tank. (d) Determine...
A 20t rigld tank initially contains saturatied refrigerant 134a vapor at 160 psla. As a result...
A 20t rigld tank initially contains saturatied refrigerant 134a vapor at 160 psla. As a result of heat transfer from the refrigerant, the pressure drops to 50 psla Show the process on a P-y diagram and determine the final temperature, the amount of refrigerant that has condensed and the heat transfer.
a rigid 14 l vessel initially contains refrigerant 134a at 30 c and has a specific volume of 0.07m^3/kg. the mixture is...
a rigid 14 l vessel initially contains refrigerant 134a at 30 c and has a specific volume of 0.07m^3/kg. the mixture is having heat transfer to reach a pressure of 200kPa. calculate the heat transfer required for this process. state the process is heat addition or rejection to or from the system.
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at...
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at a pressure of 1 MPa and a temperature of 70°C at a flow rate of 6 kg / min and exits at a temperature of 35 °C. Cooling water enters the condenser at 300 kPa pressure and 15 °C temperature and exits at 25 °C temperature. By neglecting pressure losses, Calculate; a) mass flow of cooling water b) the heat transfer from the refrigerant...
1- A fixed mass rigid tank is filled with Refrigerant-134a. Assuming initially, R-134a is under 160 psia and saturated condition (quality, x, = 1.0). The volume of tank is 20 ft. Then it went through a process until the final pressure, P, reduced to 50 psia, and the heat transfer occurred during this process. Determine (a) the final temperature, (b) the amount of R-134a been condensed, (c) the net heat transfer. (15 points)
A 0.145 m rigid tank initially contains refrigerant-134a at 1 MPa and 100 percent quality. The tank is connected by a valve to a supply line that carries refrigerant-134a ad.2 MPa and 36°C. Now the valre is opened, and the refrigerant is allowed to enter the tank. The valve is closed when it is observed that the tank contains saturated liquid atl.2 MPa. Determine (a) the mass of the refrigerant that has entered the tank 156.057g(Kound to three decimal places)...
(4 points) A-C line Liquid R-134a A rigid container containing 6.8 kg of saturated liquid R-134a at 26°C is used to fill an air- conditioning system. A valve is opened and allows liquid R-134a to escape the tank into the A-C line until only 0.85 kg of R-134a remains in the tank, at which point the valve is closed. During the process, heat transfer is allowed to occur to maintain the tank temperature at 26 °C. What is the quality...
4. A 1.5-m rigid tank is initially empty. Refrigerant (R-134a) in the supply line at 750kPa and 20°C is connected to the well-insulated tank through a valve. The valve is opened, and R-134a enters the tank until the pressure in the tank reaches the pressure of 500 kPa, at which point the valve is closed. (a) Write the assumptions. (b) Show the 1" law of thermodynamics with a control volume. (c) Determine the final temperature in the tank. (d) Determine...
A 20t rigld tank initially contains saturatied refrigerant 134a vapor at 160 psla. As a result of heat transfer from the refrigerant, the pressure drops to 50 psla Show the process on a P-y diagram and determine the final temperature, the amount of refrigerant that has condensed and the heat transfer.
QUESTIONS 1. Refrigerant-134a is cooled by water in a condenser. The refrigerant enters the condenser at a pressure of 1 MPa and a temperature of 70°C at a flow rate of 6 kg / min and exits at a temperature of 35 °C. Cooling water enters the condenser at 300 kPa pressure and 15 °C temperature and exits at 25 °C temperature. By neglecting pressure losses, Calculate; a) mass flow of cooling water b) the heat transfer from the refrigerant...
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