2/14/2023 0 Comments How much does a coolpack cost![]() It should also have 10.2 cm between the wall facing the back of the refrigerator. ![]() The system with the mechanical subcooling and the two-stage compression system are found to be the most efficient choices with a mean coefficient of performance enhancement at 75.8% and 49.8% respectively. Q: How much space does the refrigerator require around it A: In order to have sufficient ventilation, the refrigerator should have at least 10.2 cm space on all the sides. According to the results, all the examined systems are more efficient than the reference system for all the examined scenarios. The analysis is conducted with developed models in Engineering Equation Solver (EES). ![]() More specifically, the refrigeration temperature is examined from −35 ☌ to +5 ☌, while the condenser temperature (or the gas cooler outlet temperature) from 35 ☌ to 50 ☌. ![]() The examined systems produce refrigeration at one temperature level and they are examined for various operation scenarios. A typical system (evaporator, compressor, gas cooler, expansion valve) is the reference system and it is compared with a system with internal heat exchanger, a parallel compression system, a two-stage compression system and a system with mechanical subcooling after the gas collector. The objective of this work is the comparison of different transcritical CO 2 refrigeration systems and the determination of the most promising configurations. The refrigeration systems with CO 2 seem to be attractive choices for the design of refrigeration systems with small environmental impact.
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