Question 1 Consider a piston-cylinder assembly that operates in isobaric process. Steam undergoes the process from...
consider a piston-cylinder assembly that operate in isobaric process. steam undergoes the process from 400C to reach 900C. Select two different values of pressure in the range of 5 to 20 MPa at which the preocess is undergoing and subsequently plot the heat transfer (kJ/kg) as a function of the chosen pressure values. Consider a piston-cylinder assembly that operates in isobaric process. Steam undergoes the process from 400 °C to reach 900 °C. Select two different values of pressure in...
Question 1 Consider a piston-cylinder assembly that operates in isobaric process. Steam undergoes the process from 400 °C to reach 900 °C. Select two different values of pressure in the range of 5 to 20 MPa at which the process is undergoing and subsequently plot the heat transfer (kJ/kg) as a function of the chosen pressure values.
write clearly 2.48 Steam in a piston-cylinder assembly undergoes a poly- tropic process, with n 2, from an initial state where p 3.45 MPa, v 0.106 m/kg, u 3,171.1 kJ/kg, to a final state where u 2,303.9 kJ/kg. During the process, there is a heat transfer from the steam of magnitude 361.76 kJ. The mass of steam is 0.54 kg. Neglecting changes in kinetic and potential energy, determine the work, in kJ, and the final specific volume, in m'/kg.
Air in a piston-cylinder undergoes a cycle with the following processes: Process 1-2: Isobaric process from P = 0.1 MPa, T1 = 600K to T2 = 1200K Process 2-3: Isothermal process to state 3 where P3 = 0.05 MPa Process 3-4: Isochoric process to state 4 where P4 = 0.031 MPa Process 4-1: Polytropic process back to state 1 (a) Show the processes in a P-V plot showing the values. Also calculate or state the values of P. V. T...
1.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 277°C from a pressure of 5.1 bar to a pressure of 2.7 bar. Evaluate the work, in kJ/kg. 2.Nitrogen (N2) contained in a piston–cylinder arrangement, initially at 9.3 bar and 437 K, undergoes an expansion to a final temperature of 300 K, during which the pressure–volume relationship is pV1.1 = constant. Assuming the ideal gas model for the N2, determine the heat transfer in kJ/kg. 3.Argon contained in...
1.) a) Water in a piston–cylinder assembly undergoes a constant-pressure process at 30 bar from T1 = 255.1°C to saturated vapor. Determine the work for the process, in kJ per kg of water. b) A piston-cylinder assembly contains 4.4 kg of water at 238oC and 3 bar. The water is compressed to a saturated vapor state where the pressure is 53.9 bar. During compression, there is a heat transfer of energy from the water to its surroundings having a magnitude...
A piston-cylinder device containing carbon-dioxide gas undergoes an isobaric process from 103.4 kPa and 300 K to 366 K. Determine the work and heat transfer associated with this process in kJ/kg.
Ammonia is contained in a piston-cylinder assembly. The ammonia undergoes a reversible, isobaric process from an initial pressure of 30 lbf/in2 and volume of 4 ft3/lb to a final temperature of 70° F. The mass of ammonia is 0.35 lb. Determine the amount of work done on the ammonia in Btu, the amount of heat transfer to the ammonia in Btu, and the temperature at which the heat transfer occurs in °F. Assume that the heat transfer occurs at a...
Soru (2 points) Five kg of steam undergo an expansion in a piston cylinder assembly from state 1 to state 2. The amount of heat transfer from the heat source to the steam and the amount of work transfer from the paddle wheel to the steam are shown in the figure. The specific internal energy change of the steam during this process is also illustrated. Determine the amount of energy transfer by work from the steam to the piston during...
Refrigerant 22 undergoes a constant-pressure process within a piston–cylinder assembly from saturated vapor at 3.0 bar to a final temperature of 30°C. Kinetic and potential energy effects are negligible. Evaluate the work and the heat transfer, each in kJ per kg of refrigerant.