Eventos Anais de eventos
DINAME 2017
XVII International Symposium on Dynamic Problems of Mechanics
ANALYSIS OF BEHAVIOR OF POROUS MATERIAL USED FOR DISCHARGE SYSTEM OF HERMETIC COMPRESSOR
Submission Author:
Leandro Barbosa , SC
Co-Authors:
Leandro Barbosa, Arcanjo Lenzi
Presenter: Leandro Barbosa
doi://10.26678/ABCM.DINAME2017.DIN17-0073
Abstract
Gas pulsation is an important noise source in household refrigerators. The pulsation is generated in the compressor discharge chamber and it is transferred to the cabinet through the condenser, which is directly connected to the back of the system. The discharge has a considerable contribution of the noise refrigerator. This work proposes the use of experimental method to explore the characteristic of porous material which is used for discharge system of hermetic compressor. The most important acoustic parameter of porous material is the airflow resistivity. Experimental setup was developed to evaluate the behavior of airflow resistivity. The obtained parameter can feed the analytical model, such as the Johnson-Champoux-Allard (JCA) that is an equivalent fluid model for acoustic material.
Keywords
airflow resisitivity, porous material, Acoustics, Compressor
