非共沸工质CO2/R1234yf商超增压制冷系统性能分析

滑雪; 吴天昊; 代宝民; 刘圣春

doi:10.3969/j.issn.0253-4339.2024.03.143

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非共沸工质CO2/R1234yf商超增压制冷系统性能分析

更新时间：2024-12-03

- 非共沸工质CO2/R1234yf商超增压制冷系统性能分析
- Performance of Supermarket Booster Refrigeration System Using the Zeotropic Working Fluid CO2/R1234yf
- 制冷学报 2024年45卷第3期页码：143-149
- 作者机构：
  
  1. 生态环境部对外合作与交流中心
  2. 天津商业大学天津市制冷技术重点实验室
- 作者简介：
- 基金信息：
  
  国家自然科学基金（51806151）,生态环境部对外合作与交流中心资助项目（No. C/III/S/19/052）资助项目。
- DOI：10.3969/j.issn.0253-4339.2024.03.143
  中图分类号：
- 纸质出版日期：2024，
- 稿件说明：
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滑雪, 吴天昊, 代宝民, 等. 非共沸工质CO2/R1234yf商超增压制冷系统性能分析[J]. 制冷学报, 2024,45(3):143-149.

HUA XUE, WU TIANHAO, DAI BAOMIN, et al. Performance of Supermarket Booster Refrigeration System Using the Zeotropic Working Fluid CO2/R1234yf. [J]. Journal of refrigeration, 2024, 45(3): 143-149.
滑雪, 吴天昊, 代宝民, 等. 非共沸工质CO2/R1234yf商超增压制冷系统性能分析[J]. 制冷学报, 2024,45(3):143-149. DOI： 10.3969/j.issn.0253-4339.2024.03.143.

HUA XUE, WU TIANHAO, DAI BAOMIN, et al. Performance of Supermarket Booster Refrigeration System Using the Zeotropic Working Fluid CO2/R1234yf. [J]. Journal of refrigeration, 2024, 45(3): 143-149. DOI： 10.3969/j.issn.0253-4339.2024.03.143.

摘要

为满足商超制冷领域系统能效提升和制冷剂替代的需求，提出了非共沸工质CO2/R1234yf商超增压制冷系统，通过建立热力学模型，与纯CO2商超增压制冷系统进行对比。结果表明：CO2/R1234yf商超增压制冷系统可在最优的CO2质量分数（0.94）及最优排气压力（8.81 MPa）下获得最大COP（1.40）；CO2/R1234yf商超增压制冷系统COP与纯CO2系统相比具有显著提升，环境温度为35 ℃时，提升7.25%；CO2/R1234yf商超增压制冷系统APF提升率为2.68%~4.72%，系统APF随典型城市所处纬度的增加而增大。CO2/R1234yf商超增压系统?效率随CO2质量分数的增加呈先增后减趋势，CO2质量分数为0.95时获得最高?效率，为0.18，相比纯CO2系统提升4.62%

Abstract

To meet the need for energy efficiency improvement and substitution of traditional refrigerants in the field of supermarket refrigeration

a supermarket booster refrigeration system using the eco-friendly zeotropic refrigerant CO2/R1234yf is proposed in this study. A thermodynamic model is established and compared with that of a pure CO2 booster refrigeration system. The results show that the maximum COP (1.40) of the system using CO2/R1234yf was obtained under the optimal CO2 mass fraction (0.94) and discharge pressure (8.81 MPa). The COP of the CO2/R1234yf booster refrigeration system was significantly improved compared with the pure CO2 system

which increased by 7.25% when the ambient temperature was 35 ℃. The APF improvement of the CO2/R1234yf booster system was 2.68%–4.72%. The APF increased with an increase in the latitude of typical cities. The exergy efficiency of the CO2/R1234yf booster system first increased and then decreased with increasing CO2 mass fraction. The CO2/R1234yf booster refrigeration system exhibited the highest exergy efficiency (0.18) when the CO2 mass fraction was 0.95

which was 4.62% higher than that of the CO2 system.

关键词

商超增压制冷系统非共沸工质CO2/R1234yf年性能系数㶲分析能效提升

Keywords

supermarket booster refrigeration systemzeotropic working fluidCO2/R1234yfannual performance factorexergy analysisenergy efficiency improvement

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