Simulação do ciclo de refrigeração funcionando com R410A

Abstract

Nowadays, air conditioning is crucial for the development of activities in the commercial and industrial areas. This work aims to simulate a simple vapor compression refrigeration cycle using R410A refrigerant. The focus of this study involves investigating, by using the software Coolpack, the sensitivity of the coefficient of performance (COP) of a refrigeration cycle in relation to various operating and design parameters: evaporation and condensation temperatures, superheating and subcooling, pressure drops in the evaporator, condenser, suction, discharge, and liquid line, as well as the isentropic efficiency of the compressor. The acquired results show that the coefficient of performance (COP) of the refrigeration cycle operating with R410A is strongly influenced by the variation of the evaporation and condensation temperatures, and the isentropic efficiency of the compressor. Superheating, subcooling, pressure drops in the suction line and the compressor discharge lines influence the COP value, but to a lesser extent, whilst for the loss of pressure in the evaporator and the liquid line, they do not cause variations in the value of the COP.