Numerical investigation on thermodynamic performance of CO2-based mixed refrigerants applied in transcritical system

被引：0

作者：

Jintao Xie

Jian Wang

Yiming Lyu

Dingbiao Wang

Xu Peng

Huadong Liu

Sa Xiang

机构：

[1] Zhengzhou University,School of Mechanical and Power Engineering

[2] Engineering Research Center of Energy Saving Technology and Equipment of Thermal Energy System,School of Chemical Engineering

[3] Ministry of Education,undefined

[4] Zhengzhou University,undefined

[5] Zhengzhou Branch of China Nuclear Power Engineering Co.,undefined

[6] Ltd,undefined

来源：

Journal of Thermal Analysis and Calorimetry | 2022年 / 147卷

关键词：

New mixed refrigerant; R744/R152a; R744/R161; Refrigerant substitution;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The CO2-based mixed refrigerants R744/R152a and R744/R161 are proposed to enhance the thermodynamic performance of pure CO2 refrigerant. The basic physical properties of the three refrigerants were analyzed, and the thermodynamic performance of refrigerants with different CO2 ratios are compared. The results present that the optimized ratios of the new refrigerants are R744/R152a: 0.875/0.125, R744/R161: 0.850/0.150, based on which the coefficient of performance (COP), heating and cooling capacity of the optimized refrigerants increase significantly, which are up to 90% of R134a, and the exhaust pressure reduces by 1.6–1.8 MPa compared with that of pure CO2.

引用

页码：6883 / 6892

页数：9

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