1st Step: Evaluate the performance of the Refrigerator 1. Refrigerator 1 operates as a reverse Carnot cycle using R-717 as the refrigerant at a flow of 1.8 kg/s. The condensing and evaporating temperatures are 25 °C and -5 °C, respectively. To evaluate the performance of Chiller 1, you must determine the following performance parameters: project: a) Rate of heat elimination in the condenser (Q ); b) The power of the compressor; c) The COP of the cycle. For the energy balance, make the following considerations: - Permanent regime; - Variation of kinetic energy and potentials are negligible; - Compressor and turbine operate adiabatically; - Evaporation and condensation steps do not involve work.
1st Step: Evaluate the performance of the Refrigerator 1.
Refrigerator 1 operates as a reverse Carnot cycle using R-717 as the refrigerant at a
flow of 1.8 kg/s. The condensing and evaporating temperatures are 25 °C and -5 °C, respectively.
To evaluate the performance of Chiller 1, you must determine the following performance parameters:
project:
a) Rate of heat elimination in the condenser (Q );
b) The power of the compressor;
c) The COP of the cycle.
For the energy balance, make the following considerations:
- Permanent regime;
- Variation of kinetic energy and potentials are negligible;
- Compressor and turbine operate adiabatically;
- Evaporation and condensation steps do not involve work.
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