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(4 points) A-C line Liquid R-134a A rigid container containing 6.8 kg of saturated liquid R-134a...
A 1-mº rigid tank contains 100 kg R-134a at a temperature of 16 °C. A valve...
A 1-mº rigid tank contains 100 kg R-134a at a temperature of 16 °C. A valve on top of the tank is opened, and saturated vapor is allowed to escape through a throttle to a collector system at 100 kPa. During the process the temperature inside the tank remains at 16 °C by heat transfer from the 20 °C surroundings. The valve is closed when no more liquid remains inside the tank. Calculate the heat transfer to the tank and...
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 rigid tank is filled with 260 kg of saturated liquid water at 200°C. A valve...
A rigid tank is filled with 260 kg of saturated liquid water at 200°C. A valve at th bottom is opened, and liquid is withdrawn from the tank. Heat is transferred to th tank such that the temperature remains constant. Determine the amount of hea the water remains a saturated liquid the entire time and that the veloc elevation change of the water leaving is negligible. (15 pts) st be transferred by the time half the mass has been withdrawn....
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 10 ft^3 tank is full of liquid refrigerant R-134a at a temperature of 120 F....
a 10 ft^3 tank is full of liquid refrigerant R-134a at a temperature of 120 F. A valve is opened an allows vapor to be removed from this tank and sent to a reversible and adiabatic turbine to produce work. The temperature in the tank remains constant during the process. the refrigerant leaves the turbine at a pressure of 10 psia. Calculate the amount of work (in Btu) produced by the turbine if half of the mass in the tank...
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)
An insulated rigid vessel contains 5kg of saturated liquid-vapor mixture of Refrigerant- 134a at 200kPa. At...
An insulated rigid vessel contains 5kg of saturated liquid-vapor mixture of Refrigerant- 134a at 200kPa. At this stage, one-fifth of the mass is in vapor phase and rest is in liquid. Now using an electrical resistance heater, heat is supplied to the contents of the vessel until all of the refrigerant is converted to saturated vapor. Show this process on a P v diagram with respect to saturation lines and determine, 1. volume of the rigid vessel 2. temperature, in...
0.4 kg of Refrigerant 134a initially fills a piston–cylinder device with a volume of 15 L...
0.4 kg of Refrigerant 134a initially fills a piston–cylinder device with a volume of 15 L at a pressure of 400 kPa. The cylinder is connected to a supply line through a valve. R-134a is flowing in the supply line at 900 kPa and 45°C. The valve is opened, and R-134a is allowed to enter the cylinder. The valve is closed when the volume of the cylinder is triple and the temperature in the cylinder reaches 15°C. During the process,...
A 0.3 m3 rigid tank is filled with saturated liquid water at 200°C. A valve at...
A 0.3 m3 rigid tank is filled with saturated liquid water at 200°C. A valve at the bottom of the tank is opened, and liquid is withdrawn from the tank. Heat is transferred to the water such that the temperature in the tank remains constant. Determine the amount of heat that must be transferred by the time 2 of the total mass has been withdrawn. a. Hint: The phase of the water when / of the mass has exited is...
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
A 1-mº rigid tank contains 100 kg R-134a at a temperature of 16 °C. A valve on top of the tank is opened, and saturated vapor is allowed to escape through a throttle to a collector system at 100 kPa. During the process the temperature inside the tank remains at 16 °C by heat transfer from the 20 °C surroundings. The valve is closed when no more liquid remains inside the tank. Calculate the heat transfer to the tank and...
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 rigid tank is filled with 260 kg of saturated liquid water at 200°C. A valve at th bottom is opened, and liquid is withdrawn from the tank. Heat is transferred to th tank such that the temperature remains constant. Determine the amount of hea the water remains a saturated liquid the entire time and that the veloc elevation change of the water leaving is negligible. (15 pts) st be transferred by the time half the mass has been withdrawn....
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...
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)
An insulated rigid vessel contains 5kg of saturated liquid-vapor mixture of Refrigerant- 134a at 200kPa. At this stage, one-fifth of the mass is in vapor phase and rest is in liquid. Now using an electrical resistance heater, heat is supplied to the contents of the vessel until all of the refrigerant is converted to saturated vapor. Show this process on a P v diagram with respect to saturation lines and determine, 1. volume of the rigid vessel 2. temperature, in...
A 0.3 m3 rigid tank is filled with saturated liquid water at 200°C. A valve at the bottom of the tank is opened, and liquid is withdrawn from the tank. Heat is transferred to the water such that the temperature in the tank remains constant. Determine the amount of heat that must be transferred by the time 2 of the total mass has been withdrawn. a. Hint: The phase of the water when / of the mass has exited is...
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