Thermodynamic performance comparison of series and parallel two-stage evaporation vapor compression refrigeration cycle

被引：12
|
作者：
Wang, Qiulin [1 ]
Li, Tailu [2 ]
Jia, Yanan [2 ]
Zhang, Weiming [3 ]
机构：
[1] Shanxi Univ, Sch Elect Power Civil Engn & Architecture, Taiyuan 030013, Peoples R China
[2] Hebei Univ Technol, Sch Energy & Environm Engn, Tianjin 300401, Peoples R China
[3] CNOOC EnerTech Technol Co Ltd, Ind Equipment Training Base, Tianjin 300452, Peoples R China
来源：
ENERGY REPORTS | 2021年 / 7卷
关键词：
Two-stage evaporation; Vapor compression cycle; Temperature and humidity independent control; Thermodynamic performance; AIR DEHUMIDIFICATION; ENERGY PERFORMANCE; TEMPERATURE; SYSTEM; HEAT; R1234YF; EXERGY; R134A;
D O I：
10.1016/j.egyr.2021.03.016
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Series and parallel two-stage evaporative strategy for vapor compression refrigeration cycles characterized by temperature and humidity independent control were presented. The theoretical model was established to analyze the performance of parallel two-stage evaporative strategy regarding the coefficient of performance (COP), exergy loss, exergy efficiency in comparisons with series system. And refrigerants R290 and R600 with low global warming potential (GWP) and no ozone depletion potential (ODP) are proposed as alternative refrigerants for R134a in two systems. The results show that compared with R134a, the proposed R600 has better performance with higher specific refrigerating capacity and coefficient of performance, of which specific refrigerating capacity increase 102.72% than that of R134a on average. Series two-stage evaporative strategy for vapor compression refrigeration cycle with R600 had the optimal techno-economic performance, which COP and exergy efficiency are 7.8% and 11% higher than that of parallel two-stage evaporative strategy, respectively. (C) 2021 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：1616 / 1626
页数：11
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