Numerical Investigation of Flow Losses through Discharge Line of Household Type Refrigerator Compressors

9th International Conference on Compressors and their Systems

Yesilaydin, I.^1 ; Erbay, L.B.^2

Arcelik A.S. Compressor R and D Center, Compressor Plant, Organize Sanayi Bolgesi, 1, Cadde, Eskisehir, Turkey^1

Eskisehir Osmangazi University, Department of Mechanical Engineering, Eskisehir, Bati Meselik

26480, Turkey^2

关键词: Compression refrigeration systems;    Compressor efficiency;    Essential elements;    Hermetic reciprocating compressor;    Numerical flow analysis;    Numerical investigations;    Refrigeration system;    Technological development;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/90/1/012017/pdf
DOI  :  10.1088/1757-899X/90/1/012017

来源: IOP

【 摘 要 】

The technological developments, competition and energy policies are forcing the refrigeration market to increase the efficiency of their products as never before. The component that determines the performance and efficiency of the refrigeration system is the compressor, which is the major energy consumer in a compression refrigeration system. One of the essential elements of the total compressor efficiency is the discharge line flow efficiency that is subjected to this study. In this paper, the effects of design parameters on flow loses at discharge line of a hermetic reciprocating compressor were investigated with numerical flow analysis. At this study, three conceptual designs were modelled based on the discharge line design parameters such as line diameter, resonator volumes and line length. The pressure drop regions are determined by CFD analyses and they compared against the base model. Analyses are carried out by using commercial CFD software. Furthermore, the obtained numerical results were compared to experimental data and presented a good agreement in terms of pressure drop and discharge line flow efficiency.