Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
CHARACTERIZATION AND ANALYSIS OF THE EFFICIENCY OF A HERMETIC COMPRESSOR
Submission Author:
Sabrina Nogueira Rabelo , MG
Co-Authors:
Sabrina Nogueira Rabelo, Matheus Henrique Gonzaga Niterói, Ewerton Augusto Sousa Nogueira, Neylor Makalister Ribeiro Vieira, Hélio Augusto Goulart Diniz
Presenter: Sabrina Nogueira Rabelo
doi://10.26678/ABCM.ENCIT2018.CIT18-0113
Abstract
An analysis of the energy efficiency of an alternative hermetic compressor used in refrigeration cooling system with R-22 is presented. The variations of the surface temperatures of the compressor housing and on its suction and discharge temperatures were investigated. It was determined how the mass flow rate, the electric power consumed and the cycle performance coefficient were varied as a function of the surface temperature increase of the compressor. In addition, the behavior of volumetric, electromechanical, isentropic efficiencies and exergetic analysis as main indicators of device performance was analyzed. In order to determine these parameters, the natural convection coefficient for certain significant areas of the compressor housing was estimated. The main results were compared with similar compressor data available in the literature and were found to be acceptable. It was possible to observe the tendency to reduce the mass flow rate during the period of operation of this hermetic compressor and how this reduction affects other properties.
Keywords
Hermetic Compressor, Efficiency Analysis, Refrigeration system, Temperature
