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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.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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.
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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