Assessment of booster refrigeration system with eco-friendly working fluid CO 2 /halogenated alkene (HA) mixture for supermarket application around the world: Energy conservation, cost saving, and emissions reduction potential

被引：9

作者：

Dai, Baomin ^{[1
,2
,3
]}

Wu, Tianhao ^{[1
,2
,3
]}

Liu, Shengchun ^{[1
,2
,3
]}

Zhang, Peng ^{[1
,2
,3
]}

Zhang, Jianing ^{[1
,2
,3
]}

Fu, Rao ^{[1
,2
,3
]}

Wang, Dabiao ^{[4
]}

机构：

[1] Tianjin Univ Commerce, Tianjin Key Lab Refrigerat Technol, Tianjin 300134, Peoples R China

[2] Tianjin Univ Commerce, Int Ctr Fundamental & Engn Thermophys, Tianjin 300134, Peoples R China

[3] Tianjin Univ Commerce, Minist Agr & Rural Affairs, Key Lab Agr Prod Low Carbon Cold Chain, Tianjin 300134, Peoples R China

[4] Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst NERC CF, Sch Chem Engn, Fuzhou 350002, Fujian, Peoples R China

来源：

ENERGY | 2024年 / 297卷

基金：

中国国家自然科学基金;

关键词：

Supermarket booster refrigeration system; CO2/Halogenated alkene mixture; Life cycle assessment; Energy and exergy performance; Economic and environmental analysis; AIR-CONDITIONING SYSTEM; THEORETICAL EVALUATION; PERFORMANCE; R1234YF; EXERGY;

D O I：

10.1016/j.energy.2024.131244

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

For the scope of commercial supermarkets, the demand for energy efficiency improvement and environmentallyfriendly working fluid of the refrigeration system is necessary. In this study, supermarket booster refrigeration system by using eco-friendly working fluid CO 2 /halogenated alkene (HA) mixture is proposed, and the mixture used in systems with two evaporation temperatures and operating modes affected by ambient temperature are studied. The energy efficiency, economic performance and emission reduction potential of the whole life cycle are conducted to compare with the pure CO 2 booster refrigeration system. Furthermore, the influence of climate condition is discussed when used in 40 typical cities around the world. The results show the coefficient of performance (COP) of booster refrigeration system can be significantly improved by using CO 2 /HA mixtures. As the ambient temperature is 33 degrees C, the CO 2 /R1234yf (93/7) operates with the maximum COP of 1.367, which is 11.59 % higher than that of pure CO 2 . Using CO 2 /HA mixtures in the booster refrigeration system can significantly improve the exergy efficiency of system. Moreover, the system using CO 2 /HA mixtures has higher annual performance factor and lower life cycle cost (LCC) than pure CO 2 . LCC of the system using CO 2 /R1234yf (94/6) is the lowest, and the reduction rate is 3.06 - 5.59 %. Meanwhile, the life cycle carbon emissions of systems in different climatic regions using CO 2 /R1234yf can be reduced by 2.39 - 5.21 %. The booster refrigeration system adopting CO 2 /HA mixtures is a promising alternative solution for commercial supermarket refrigeration and energy -saving.

引用

页数：18

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