Performance analysis of reciprocating compressors through computational fluid dynamics

Abstract An experimentally validated numerical analysis of reciprocating refrigeration compressors is presented. The finite-volume methodology is adopted to solve the flow field and a one-degree-of-freedom model is used to describe the valve dynamics. The variation of the computation domain, associa...

Full description

Saved in:
Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering Journal of process mechanical engineering, 2008-11, Vol.222 (4), p.183-192
Main Authors: Pereira, E L L, Deschamps, C J, Ribas, F A
Format: Article
Language:English
Subjects:
Acoustics
Air compressors
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Mechanical engineering
Mechanical engineering. Machine design
Noise: its effects and control
Numerical analysis
Physics
Pump and compressors (turbocompressors, fans, etc.)
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Refrigeration installations
Thermodynamics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract An experimentally validated numerical analysis of reciprocating refrigeration compressors is presented. The finite-volume methodology is adopted to solve the flow field and a one-degree-of-freedom model is used to describe the valve dynamics. The variation of the computation domain, associated with the valve and piston displacements, is taken into account and the time-dependent flow field and the valve dynamics are coupled and solved simultaneously. The three-dimensional formulation considered in the analysis allowed the simulation of actual suction and discharge muffler geometries. Numerical results were validated with reference to experimental data for valve displacement and pressure in the suction and compression chambers obtained in a calorimeter facility. A study was carried out to identify the contributions of mufflers and valves to the compressor thermodynamic losses.
ISSN:0954-4089
2041-3009
DOI:10.1243/09544089JPME194