Second-law analysis of two-stage vapour compression refrigeration plants

被引：4

作者：

Torrella, E. ^{[2
]}

Llopis, R. ^{[1
]}

Cabello, R. ^{[1
]}

Sanchez, D. ^{[1
]}

Larumbe, J. A. ^{[2
]}

机构：

[1] Jaume I Univ, Dept Mech Engn & Construct, E-12071 Castellon de La Plana, Spain

[2] Univ Politecn Valencia, Dept Appl Thermodynam, E-46022 Valencia, Spain

来源：

INTERNATIONAL JOURNAL OF EXERGY | 2010年 / 7卷 / 06期

关键词：

R-404A; exergy analysis; inter-stage pressure; two-stage refrigerating cycle; vapour compression; COMPOUND COMPRESSOR; SYSTEM; CYCLE;

D O I：

10.1504/IJEX.2010.035512

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper describes a Second Law Analysis based on experimental data of a two-stage vapour compression facility driven by a compound compressor for medium and low-capacity refrigeration applications, which operates with the most usual inter-stage configurations (direct liquid injection and subcooler). The experimental analysis is performed for an evaporating temperature range between 36 degrees C and 20 degrees C and for a condensing temperature range between 30 degrees C and 47 degrees C using the refrigerant R-404A. The final results are compared with energy analysis from previous works. Additionally, a new criterion of equivalence between the simple vapour compression cycle and the two-stage compression cycle is given.

引用

页码：641 / 653

页数：13

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