Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Development and performance analysis of a compression refrigeration cycle
Submission Author:
Sabrina Nogueira Rabelo , MG
Co-Authors:
Sabrina Nogueira Rabelo, Héliton Gilmar Coutinho Júnior, Flavio Vasconcelos, Yuri Ávila, João Pedro Paulino Martins, Matheus Henrique Gonzaga Niterói, Geraldo oliveira, Letícia Teixeira, Ewerton Augusto Sousa Nogueira, Juliano Daniel Simeão
Presenter: Héliton Gilmar Coutinho Júnior
doi://10.26678/ABCM.COBEM2017.COB17-0259
Abstract
Due to the rising search for cooling systems, which are used in many areas on a daily basis, such as air conditioning and food preservation, like, cooling and freezing, there is currently a strong worldwide trend to invest in research and development studies to optimize refrigeration cycle. Therefore, focusing on verifying and analyzing the multiple variables, which may affect a cooling system, a vapor-compression cycle workbench was built, and its components were analyzed. The R22 was used as working fluid. Even though, this fluid has a moderate GWP rate (1700), it has a low chlorine concentration in its structure, resulting in a nearly zero ODP rate. The system is composed with a hermetic compressor, a cooled by forced air convection condenser, standard direct expansion evaporator and a capillary tube. The performance analysis made resulted in COP values varying from 3,15 to 4,64. The fan responsible for the forced convection on the condenser had its speed varied in order to evaluate its influence on the system’s COP. It was possible to obtain an outlet air temperature ranging from 15 to 0ºC.
Keywords
coefficient of performance, energy, compression refrigeration cycle
