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Type: Artigo de Periódico
Title: Performance Evaluation Of A Vapor Injection Refrigeration System Using Mixture Refrigerant R290/r600a
Author: d'Angelo
JVH; Aute
V; Radermacher
Abstract: This work presents a performance evaluation of a vapor injection refrigeration system using a mixture refrigerant R290/R600a, through steady-state simulations used to accomplish a parametric analysis considering the influence of the refrigerant composition over the following parameters: COP; compressor power; refrigerant mass flow rate; refrigerant temperature glide; mass flow ratio between vapor and feed streams in the flash tank; liquid and vapor composition of flash tank outlet streams and compression ratio. Two cases, denominated A and B, considering different fixed temperatures at the refrigeration system were studied and their performances were compared with the one of a basic vapor compression cycle. A maximum COP was obtained for a mixture containing 40 wt% of R290. COP of vapor injection refrigeration cycle is 16-32% greater than the one of a vapor compression cycle, depending on the composition of the mixture refrigerant and pressure drop at the cycle upper-stage expansion valve. (C) 2016 Elsevier Ltd and IIR. All rights reserved.
Subject: Simulation
Mixture Refrigerant
Vapor Injection
Rights: fechado
Identifier DOI: 10.1016/j.ijrefrig.2016.01.019
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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