1.Refrigerator 1 simulates an ideal refrigerator and therefore operates on a Carnot cycle using R-134a as the refrigerant at a flow rate of 1.4 kg/sec. The condensing and evaporating temperatures are 30 °C and -10 °C, respectively. To assess the performance of Refrigerator 1, you must submit the report. of the project with the following information: a) Enthalpies corresponding to the states indicated in the cycle (1, 2, 3 and 4); b) The cooling rate (Q L ); c) The work supplied to the fluid by the compressor;
1.Refrigerator 1 simulates an ideal refrigerator and therefore operates on a Carnot cycle using R-134a as the refrigerant at a flow rate of 1.4 kg/sec. The condensing and evaporating temperatures are 30 °C and -10 °C,
respectively. To assess the performance of Refrigerator 1, you must submit the report.
of the project with the following information:
a) Enthalpies corresponding to the states indicated in the cycle (1, 2, 3 and 4);
b) The cooling rate (Q L );
c) The work supplied to the fluid by the compressor;
d) The work generated by the turbine;
e) The condenser heat rejection rate (Q H );
f) The coefficient of performance of the cycle.
Important detail: For the energy balance, make the following considerations:
✓ Permanent regimen;
✓ Kinetic and potential energy variations are negligible;
✓ Compressor and turbine operate adiabatically;
✓ Evaporation and condensation steps are labor-free.
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