Question

In: Mechanical Engineering

A 2-m3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through...

A 2-m3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400°C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 300°C. Determine the mass of the steam that has entered and the pressure of the steam in the supply line. The initial and final properties of steam in the tank are v1 = 0.19436 m3/kg, u1 = 2582.8 kJ/kg, v2 = 0.12551 m3/kg, and u2 = 2773.2 kJ/kg. Solve using appropriate software.

The mass of the steam is kg.

The pressure of the steam is kPa.

Solutions

Expert Solution


Related Solutions

An insulated, rigid tank whose volume is 0.5 m3 is connected by a valve to a...
An insulated, rigid tank whose volume is 0.5 m3 is connected by a valve to a large vessel holding steam at 40 bar, 480°C. The tank is initially evacuated. The valve is opened only as long as required to fill the tank with steam to a pressure of 20 bar. Determine: (a) the final temperature of the steam in the tank, in °C, the final mass of the steam in the tank, in kg, and (b) the amount of entropy...
A 10 kg steam initially at 2 MPa saturated vapor is inside an insulated piston cylinder....
A 10 kg steam initially at 2 MPa saturated vapor is inside an insulated piston cylinder. The cylinder has a bottom valve. As this valve opens, steam at 800 kPa and 200C exits while the steam inside the tank has 400kPa saturated vapor. Find the exit mass of steam from the cylinder in kg.
A well-insulated rigid tank contains 3kg of saturated liquid vapour-mixture of water at 250kpa. Initially, three...
A well-insulated rigid tank contains 3kg of saturated liquid vapour-mixture of water at 250kpa. Initially, three quarters of the mass is in the liquid phase. An electric resistance heater placed in the tank is turned on and kept on until all the liquid in the tank is vaporizer. Assuming the surroundings to be 25 degrees Celsius and 100kpa Determine: a) The exergy destruction and b) The second law efficiency for the process.
Rigid tank A and tank B (containing water) are connected to a piston cylinder with two...
Rigid tank A and tank B (containing water) are connected to a piston cylinder with two valves as shown below. The piston cylinder assembly is initially (state 1) empty when the valves are closed. The pressure required to float the piston is 800kPa, the piston is constantly loaded and is free to move. Now the valves are opened and the fluid reaches a uniform state at 250C within the system (state 2). Determine: (a) The final volume (5 points) (b)...
A closed, rigid tank is filled with water. Initially, the tank holds 0.6 lb of saturated...
A closed, rigid tank is filled with water. Initially, the tank holds 0.6 lb of saturated vapor and 6.0 lb of saturated liquid, each at 212°F. The water is heated until the tank contains only saturated vapor. Kinetic and potential energy effects can be ignored. Determine the volume of the tank, in ft3, the temperature at the final state, in °F, and the heat transfer, in Btu.
An insulated rigid tank having a 0.2 m3 volume initially contains air at 400 kPa and...
An insulated rigid tank having a 0.2 m3 volume initially contains air at 400 kPa and 313 K. The amount of paddle-wheel work done on the system is 200 kJ. Calculate the nearest value of entropy change a. 0.66 kJ/K b. 0.88 kJ/K c. None d. 0.44 kJ/K e. 0.33 kJ/K
A rigid tank of volume 0.3 m3 contains water initially at its critical point. The water...
A rigid tank of volume 0.3 m3 contains water initially at its critical point. The water is now cooled to 150°C a) What mass of water is in the tank? b) Has the average specific volume of this water changed during the cooling process? c) Find the mass of liquid water and the mass of water vapor in the tankat the end of the process. d) Find the volume of liquid water and the volume of water vapor in the...
Problem 4.084 SI A rigid copper tank, initially containing 1.5 m3 of air at 295 K,...
Problem 4.084 SI A rigid copper tank, initially containing 1.5 m3 of air at 295 K, 4 bar, is connected by a valve to a large supply line carrying air at 295 K, 15 bar. The valve is opened only as long as required to fill the tank with air to a pressure of 15 bar. Finally, the air in the tank is at 320 K. The copper tank, which has a mass of 20 kg, is at the same...
A rigid, well-insulated tank contains a two-phase mixture consisting of 0.005 ft3 of saturated liquid water...
A rigid, well-insulated tank contains a two-phase mixture consisting of 0.005 ft3 of saturated liquid water and 2.7 ft3 of saturated water vapor, initially at 14.7 lbf/in.2 A paddle wheel stirs the mixture until only saturated vapor remains in the tank. Kinetic and potential energy effects are negligible. For the water, determine the amount of energy transfer by work, in Btu.
120 kilograms of saturated water at 2.32 MPa pressure is heated to saturated vapor at same...
120 kilograms of saturated water at 2.32 MPa pressure is heated to saturated vapor at same pressure. Determine heat required for the process.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT