Problem 5 Saturated R-134a vapor enters a compressor at 10°F. At compressor exit, the specific entropy is the same as that at the inlet, and the pressure is 90 psia. Determine the R-134a exit temperature and the change in the enthalpy of R-134a. Problem 6 Refrigerant-134a at 280 kPa and 50°C undergoes an isothermal process in a closed system until its quality is 40 percent. On per unit mass basis, determine how much work and heat transfer are required.
Problem 5 Saturated R-134a vapor enters a compressor at 10°F. At compressor exit, the specific entropy is the same as that at the inlet, and the pressure is 90 psia. Determine the R-134a exit temperature and the change in the enthalpy of R-134a. Problem 6 Refrigerant-134a at 280 kPa and 50°C undergoes an isothermal process in a closed system until its quality is 40 percent. On per unit mass basis, determine how much work and heat transfer are required.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Help solve both of these for my homework. Please
Transcribed Image Text:Problem 5
Saturated R-134a vapor enters a compressor at 10°F. At compressor exit, the specific entropy is the same as
that at the inlet, and the pressure is 90 psia. Determine the R-134a exit temperature and the change in the
enthalpy of R-134a.
Problem 6
Refrigerant-134a at 280 kPa and 50°C undergoes an isothermal process in a closed system until its quality is
40 percent. On
per unit mass basis, determine how much work and heat transfer are required.
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