Seasonal energy performance characteristics of novel ejector-expansion air conditioners with low-GWP refrigerants

被引：20

作者：

Jeon, Yongseok ^{[1
]}

Kim, Sunjae ^{[2
]}

Lee, Sang Hun ^{[2
]}

Chung, Hyun Joon ^{[2
]}

Kim, Yongchan ^{[2
]}

机构：

[1] Chonnam Natl Univ, Dept Refrigerat & Air Conditioning Engn, 50 Daehak Ro, Yeosu 59626, Chonnam, South Korea

[2] Korea Univ, Dept Mech Engn, 145 Anam Ro, Seoul 02841, South Korea

来源：

APPLIED ENERGY | 2020年 / 278卷

基金：

新加坡国家研究基金会;

关键词：

Ejector-expansion air conditioner; Ejector; Seasonal performance; Life cycle climate performance; Low-GWP refrigerant; HEAT-PUMP; VAPOR INJECTION; 2-PHASE EJECTOR; SYSTEM; R410A; OPTIMIZATION; CYCLE; GEOMETRIES; DESIGN; R32;

D O I：

10.1016/j.apenergy.2020.115715

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：

The objective of this study is to investigate the seasonal performance characteristics of novel ejector-expansion air conditioners (EEACs) with low global warming potential refrigerants. A simplified simulation model for EEACs is developed and validated using measured data. Using a simulation model, the coefficient of performance, cooling seasonal performance factor, and life cycle climate performance of the EEACs employing low global warming potential refrigerants are analyzed at various operating conditions and modes. In addition, the climatic effects on the cooling seasonal performance factors and life cycle climate performances of the EEACs are evaluated at four different weather conditions. The EEAC with R290 exhibits the cooling seasonal performance factor and total CO2 emissions that are 22% higher and 23.3% lower, respectively, than those of the baseline air conditioner with R410A. In general, R290 is the best working fluid for EEACs in terms of the seasonal performance and lifetime environmental factor.

引用

页数：9

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