A piston-cylinder assembly contains air at a temperature of 527°C and a volume of Vi = 2 m. The air undergoesthree processes to complete a thermodynamic cycle. The following information is known about the three stepsthat make up the cycle:Process 1-2: Isothermal process from P1 = 436 kPa to P2 = 2300 kPaProcess 2-3: Isobaric process until VI/V3 = 4.Process 3-1: Polytropic process to the initial statePlot the processes on the p-v diagram and Determine:(a) The polytropic exponent for process 3-1.(b) The change in the internal energy of air for each process.(c) The work done, and heat transfer for each process.(d) The net work, and net heat transferred during the cycle.

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A piston-cylinder assembly contains air at a temperature of 527°C and a volume of V1 = 2 m³. The air undergoes three processes to complete a thermodynamic cycle. The following information is known about the three steps that make up the cycle: Process 1-2: Isothermal process from P = 436 kPa to P2 = 2300 kPa Process 2-3: Isobaric process until V1/V3 = 4. Process 3-1: Polytropic process to the initial state Plot the processes on the p-v diagram and Determine: (a) The polytropic exponent for process 3-1. (b) The change in the internal energy of air for each process. (c) The work done, and heat transfer for each process. (d) The net work, and net heat transferred during the cycle.

A piston-cylinder assembly contains air at a temperature of 527°C and a volume of V1 = 2 m³. The air undergoes three processes to complete a thermodynamic cycle. The following information is known about the three steps that make up the cycle: Process 1-2: Isothermal process from P = 436 kPa to P2 = 2300 kPa Process 2-3: Isobaric process until V1/V3 = 4. Process 3-1: Polytropic process to the initial state Plot the processes on the p-v diagram and Determine: (a) The polytropic exponent for process 3-1. (b) The change in the internal energy of air for each process. (c) The work done, and heat transfer for each process. (d) The net work, and net heat transferred during the cycle.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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