制冷技术2024，Vol.44Issue(5)：16-20,5.DOI:10.3969/j.issn.2095-4468.2024.05.103
CO2双温压缩/喷射空调系统性能研究
Performance Study on CO2 Dual Temperature Compression/Ejection Air Conditioning System
宋海 1樊明敬 2宁前 1蔡德华 1何国庚1
作者信息
- 1. 华中科技大学能源与动力工程学院,湖北 武汉 430074
- 2. 华中科技大学能源与动力工程学院,湖北 武汉 430074||青岛海尔空调器有限总公司,山东 青岛 266100
- 折叠
摘要
Abstract
In this paper,the temperature and humidity independent control technology is applied to CO2 dual-evaporator compression/ejection air conditioning system.A thermodynamic model is developed to investigate performance of the air conditioning system in cooling and dehumidification.The influence of cooling capacity ratio on the entrainment ratio and energy efficiency of the system is studied,and a comparative study of the air conditioning system with a conventional dual-evaporator air conditioning system is conducted in terms of energy efficiency.The results show that under the design condition,the total cooling capacity of CO2 dual-evaporator compression/ejection air conditioning system is 5.837 kW,the dehumidification capacity is 1.99 kg/h,and energy efficiency ratio can reach 4.08.With the increase of cooling capacity ratio,entrainment ratio of the system decreases and energy efficiency increases.When cooling capacity ratio is 5,the entrainment ratio is 0.127,and energy efficiency ratio can reach 5.324.Compared with conventional dual-evaporator air conditioning,energy efficiency ratio of the system is increased by 27.2%-31.12%when low temperature evaporation temperature is in the range of 5-15℃.Under the design condition,energy efficiency ratio can be improved by 28.91%.关键词
CO2/压缩/喷射空调/温湿度独立控制技术Key words
Carbon dioxide/Compression/ejection air conditioning/Temperature and humidity independent control technology分类
通用工业技术引用本文复制引用
宋海,樊明敬,宁前,蔡德华,何国庚..CO2双温压缩/喷射空调系统性能研究[J].制冷技术,2024,44(5):16-20,5.
