Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
CHARACTERIZATION OF VOLUMETRIC INEFFICIENCIES OF RECIPROCATING COMPRESSORS ADOPTED IN SMALL CAPACITY REFRIGERATION SYSTEMS
Submission Author:
Larissa Menezes Santos , SE , Brazil
Co-Authors:
Larissa Menezes Santos, Cesar Deschamps
Presenter: Larissa Menezes Santos
doi://10.26678/ABCM.ENCIT2020.CIT20-0280
Abstract
Reciprocating compressors are widely used in small capacity refrigeration systems due to its efficiency, reliability and low cost. A number of factors can significantly reduce the mass flow rate supplied by the compressor to the system, thus reducing the cooling capacity. This paper presents a procedure to identify and quantify different sources of volumetric inefficiency, such as suction gas superheating, clearance volume, backflow in the suction and discharge valves, and leakage through the piston-cylinder clearance. The procedure is applied in the analysis of a reciprocating compressor operating under two rotation speeds.
Keywords
Refrigeration, Reciprocating compressor, Volumetric Efficiency
