Simulation of Air Source Heat Pump with Refrigerant Injection for Heating Operation

被引：0

作者：

Liu Haibo ^{[1
]}

Shao Shuangquan ^{[2
]}

Ma Guoyuan ^{[1
]}

Fan Boyuan ^{[1
]}

机构：

[1] College of Environmental and Energy Engineering,Beijing University of Technology

[2] CAS Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry

来源：

TransactionsofNanjingUniversityofAeronauticsandAstronautics | 2018年 / 35卷 / 05期

基金：

中国国家自然科学基金;

关键词：

heat pump; refrigerant injection; air conditioning; simulation; electric vehicle(EV);

D O I：

10.16356/j.1005-1120.2018.05.739

中图分类号：

U469.72 [电动汽车]; U463.851 [];

学科分类号：

0807 ;

摘要：

An air source heat pump(ASHP)with refrigerant injection is proposed for the air conditioning system of electric vehicles(EVs),especially for efficient heating in cold winter,when there is no wasted heat of engines.The simulation model is built with the framework of two-phase fluid network,where the compressor is separated as two compressors and the economizer is treated as two heat exchangers in the injection path and the main refrigerant path.With the validated simulation model,the heating performance is analyzed,and the results show that the coefficient of performance(COP)of ASHP with refrigerant injection is higher than 1.4 and the discharge temperature is less than 100℃ when the outdoor temperature is-20℃.The above performance ensures that the air conditioning system and EVs can operate normally with high efficiency even in the cold winter,which is much helpful for the practicability of EVs.

引用

页码：739 / 748

页数：10

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