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首页> 外文期刊>International Journal of Refrigeration >Performance evaluation of a vapor injection refrigeration system using mixture refrigerant R290/R600a
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Performance evaluation of a vapor injection refrigeration system using mixture refrigerant R290/R600a

机译：使用混合制冷剂R290 / R600a的蒸汽喷射制冷系统的性能评估

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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.
机译：这项工作是通过稳态模拟来完成使用参比制冷剂R290 / R600a的蒸汽喷射制冷系统的性能评估，该模拟用于考虑制冷剂成分对以下参数的影响来完成参数分析。压缩机功率制冷剂质量流量;制冷剂温度下滑;闪蒸罐中蒸汽和进料流之间的质量流量比;闪蒸罐出口物流的液体和蒸气组成及压缩比。研究了两种情况，分别为A和B，分别考虑了制冷系统的不同固定温度，并将它们的性能与基本蒸气压缩循环之一进行了比较。对于包含40重量％的R290的混合物，获得了最大COP。蒸气喷射式制冷循环的COP比蒸气压缩循环的COP大16-32％，这取决于混合制冷剂的成分和循环上级膨胀阀处的压降。 （C）2016 Elsevier Ltd和IIR。版权所有。

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