A piston-cylinder assembly contains Refrigerant 22, initially a saturated vapor at 5 bar. The refrigerant undergoes aprocess for which the pressure-specific volume relationship is pv = constant to a final pressure of 20 bar. Kinetic andpotential energy effects can be neglected.a. For your schematic, provide a rough sketch of your system, with arrows indicating direction of work andheat (i.e, in or out of the system)b. Determine the work and heat transfer for the process, each in (kJ/kg)

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Answered: A piston-cylinder assembly contains…

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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Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12oC with a volumetric flow rate of 0.18 m3/s. Refrigerant exits at 8 bar, 70oC. Changes in kinetic and potential energy from inlet to exit can be ignored.Determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kW. The volume metric flow rate of .05262 m^3/s is correct. My power input is incorrect. See attached
One kilogram of air, initially at 5 bar, 350 K, and 3 kg of carbon dioxide (CO2), initially at 2 bar, 450 K, are confined to opposite sides of a rigid, well-insulated container. The partition is free to move and allows conduction from one gas to the other without energy storage in the partition itself. The air and carbon dioxide each behave as ideal gases. Determine the final equilibrium temperature, in K, and the final pressure, in bar, assuming constant specific heats.
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Referring to the figure shown below, water contained in a piston-cylinder assembly, initially at 1.5 bar and quality of 20%, is heated at constant pressure until the piston hits the stops. Heating then continues until the water is a saturated vapor. The initial height,L1L1, is 0.05 m and the change in height, L2L2, is 0.02 m.
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Refrigerant 22 undergoes a constant-pressure process within a piston–cylinder assembly from saturated vapor at 5.0 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.
0.5-kg of air undergoes a power cycle consisting of the following process: Process 1-2: Constant volume from p1 = 1.4 bar, T1 = 5 °C to T2 = 180 °C. Process 2-3: Adiabatic expansion to v3 = 1.4v2 Process 3-1: Constant-pressure compression Assuming ideal gas behavior, determine a) the pressure at State 2, in bar. b) the temperature at State 3, in °C. c) the thermal efficiency of the cycle.
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