Barbosa, Cleiton Rubens FormigaAlmeida Junior, Luiz Antonio de2025-07-172025-07-172025-07-07ALMEIDA JUNIOR, Luiz Antonio de. Simulação do ciclo de refrigeração por compressão de vapor multiestágio com R152a. 2025. 41 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Mecânica) – Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2025.https://repositorio.ufrn.br/handle/123456789/64499Refrigeration systems are based on the removal of heat from an environment and its transfer to another at a higher temperature, using equipment such as compressors, expansion devices, and heat exchangers, which form a closed thermodynamic cycle. This technology is widely used in industrial and commercial sectors, being essential both for thermal comfort and for food preservation. This study aims to analyze the influence of parameters related to intercooler efficiency (85% and 80%) and the methodology for calculating the intermediate pressure in a multistage vapor compression system with a closed intercooler. The refrigerant used in the simulations is R152a. Using the CoolPack software, different operating conditions and their impacts on the system’s coefficient of performance (COP) were evaluated. The results indicated a variation in COP values from 0.94 to 0.97, representing a change of less than 3.2% in system performance.pt-BRRefrigeração multiestágioSimulaçãoCoeficiente de PerformanceRefrigerante R152aCoolPackbachelorThesisENGENHARIAS::ENGENHARIA MECANICA::ENGENHARIA TERMICA::TERMODINAMICA