A refrigeration system with R134a as the working fluid is used to maintain a space at 25°C by absorbing heat from water entering the evaporator at 50°C with atmospheric pressure at a rate of 0.065kg/s and exiting at 40°C. The compression has an isentropic efficiency of 75%. The refrigerant exits the evaporator at 20°C with 0.5542 MPa, while the condenser outlet temperature is 3.8°C. How can I do this by DWSIM, I barely know the program but I did not learn how to use it properly and watching videos I still have doubts.

A refrigeration system with R134a as the working fluid is used to maintain a space at 25°C by absorbing heat from water entering the evaporator at 50°C with atmospheric pressure at a rate of 0.065kg/s and exiting at 40°C. The compression has an isentropic efficiency of 75%. The refrigerant exits the evaporator at 20°C with 0.5542 MPa, while the condenser outlet temperature is 3.8°C. How can I do this by DWSIM, I barely know the program but I did not learn how to use it properly and watching videos I still have doubts.

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

Chapter28: Special Refrigeration Applications

Section: Chapter Questions

Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?

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A refrigeration system with R134a as the working fluid is used to maintain a space at 25°C by absorbing heat from water entering the evaporator at 50°C with atmospheric pressure at a rate of 0.065kg/s and exiting at 40°C. The compression has an isentropic efficiency of 75%. The refrigerant exits the evaporator at 20°C with 0.5542 MPa, while the condenser outlet temperature is 3.8°C.Determine the heat exchange in the evaporator.
A refrigeration system with R134a as the working fluid is used to maintain a space at 25°C by absorbing heat from water entering the evaporator at 50°C with atmospheric pressure at a rate of 0.065kg/s and exiting at 40°C. The compression has an isentropic efficiency of 75%. The refrigerant exits the evaporator at 20°C with 0.5542 MPa, while the condenser outlet temperature is 3.8°C. The heat exchange in the evaporator is 2.717 kW that was the result I obtained, so how do I analyze the effect of the isentropic compression efficiency on the process? I need help please, I am stuck on this homework.
A refrigeration system with R134a as the working fluid is used to maintain a space at 25°C by absorbing heat from water entering the evaporator at 50°C with atmospheric pressure at a rate of 0.065kg/s and exiting at 40°C. The compression has an isentropic efficiency of 75%. The refrigerant exits the evaporator at 20°C with 0.5542 MPa, while the condenser outlet temperature is 3.8°C. The heat exchange in the evaporator is 2.717 kW that was the result I obtained, so what would be the result of the isentropic efficiency of compression on the process? I need help please, I am stuck on this homework.
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