PROBLEM 2: 8 lbm of Refrigerant 134a is contained in a cylinder with a piston at...

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PROBLEM 2: 8 lbm of Refrigerant 134a is contained in a cylinder with a piston at 60 psi and a quality of 75%. It then undergoes the following processes. 1-2: Constant pressure to T = 80F 2-3: Constant temperature to saturated vapor with W23 = -150 Btu 3-1: Adiabatic Expansion/Compression Changes in kinetic and potential energies are negligible. a) Remember your schematic and assume sections. b) Fill in the table. c) Find the work from 1 to 2. [Btu] d) Find the heat transfer from 2 to 3. [Btu] e) Is process 3-1 expansion or compression? f) Draw p-v and T-v diagrams representing these processes. State 2 State 3 Saturated Vapor Phase State 1 75% Pressure 60 psi Temperature 80F Specific Volume Specific Internal Energy PROBLEM 2: 8 lbm of Refrigerant 134a is contained in a cylinder with a piston at 60 psi and a quality of 75%. It then undergoes the following processes. 1-2: Constant pressure to T = 80F 2-3: Constant temperature to saturated vapor with W23 = -150 Btu 3-1: Adiabatic Expansion/Compression Changes in kinetic and potential energies are negligible. a) Remember your schematic and assume sections. b) Fill in the table. c) Find the work from 1 to 2. [Btu] d) Find the heat transfer from 2 to 3. [Btu] e) Is process 3-1 expansion or compression? f) Draw p-v and T-v diagrams representing these processes. State 2 State 3 Saturated Vapor Phase State 1 75% Pressure 60 psi Temperature 80F Specific Volume Specific Internal Energy