不同蒸发器负荷下自动复叠冷冻循环的热力学分析

IF 0.8 Q4 THERMODYNAMICS
Ayça Atamtürk, Serhan Küçüka
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引用次数: 0

摘要

本文提出了一种改进的自串级制冷循环。该循环包括两个蒸发器和一个压缩机,分离器位于冰箱蒸发器后。来自分离器的气相通过内部蒸发器冷凝,并与来自分离器的一定数量的液相混合。冷凝的液体在低压下被送到冷冻蒸发器。采用REFPROP数据库对共沸混合物R290/R600a作为循环流体的热力学性质进行了测定。通过改变冷冻室和冷冻室负荷的比例,研究了循环性能和总制冷量的变化。结果表明:随着制冷机负荷比的增大,制冷机的容积制冷量增大,压缩机压力比减小;
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermodynamic Analysis of an Auto-Cascade Freezer Cycle at Different Loads of Evaporators
In this study, a modified auto-cascade refrigerating cycle is proposed. The cycle includes two evaporators and one compressor, and a separator is located after the refrigerator evaporator. The vapor phase from the separator is condensed through an internal evaporator and is mixed with some amount of the liquid phase taken from the separator. The condensed liquid is sent to the freezer evaporator at low pressure. Thermodynamic properties of the mixture R290/R600a, which is a zeotropic mixture as a cycle fluid, were determined using the REFPROP database. The variation of the cycle performance and total cooling capacity is investigated by changing the ratios of refrigerator and freezer loads. The results show that the volumetric cooling capacity increases and the compressor pressure ratio decreases as the load ratio of the refrigerator increases.
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来源期刊
CiteScore
2.70
自引率
10.00%
发文量
0
期刊介绍: As the only international journal in the field of air-conditioning and refrigeration in Asia, IJACR reports researches on the equipments for controlling indoor environment and cooling/refrigeration. It includes broad range of applications and underlying theories including fluid dynamics, thermodynamics, heat transfer, and nano/bio-related technologies. In addition, it covers future energy technologies, such as fuel cell, wind turbine, solar cell/heat, geothermal energy and etc.
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