An Experimental Study on Thermal Energy Storage Based Reverse Cycle Defrosting Method Using Sub-cooling Energy of Refrigerant for Air Source Heat Pump: Characteristics of Thermal Energy Storage Operation

Author

Jiankai, Dong ; Minglu, Qu ; Yiqiang, Jiang ; Yang, Yao ; Shiming, Deng ; Honglei, Wan

Author_Institution

Inst. of Heat Pump & Air Conditioning of Technol., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

19-20 Feb. 2011

Firstpage

1970

Lastpage

1973

Abstract

The introduction of the system of thermal energy storage (TES) based reverse cycle defrosting method using sub-cooling energy of refrigerant for air Source heat pump(ASHP) is given firstly. And then the characteristic of TES using sub-cooling energy of refrigerant in heating is experimentally researched. The results show that storing sub-cooling energy of refrigerant in the PCM can not only improve the system COP in heating, but also provide energy for defrosting. Two modes of TES are inferred and it proves that improved system performances and indoor thermal comfort can be resulted in mode of starting TES process when heating for one hour.

Keywords

cooling; heat pumps; refrigerants; thermal energy storage; ASHP; COP; PCM; TES process; air source heat pump; indoor thermal comfort; refrigerant subcooling energy; reverse cycle defrosting method; thermal energy storage; Coils; Discharges; Heat pumps; Heating; Refrigerants; Temperature distribution; Temperature measurement; air source heat pump; defrosting; phase change material; sub-cooling of refrigerant; thermal energy storage;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on

Conference_Location

Changsha

Print_ISBN

978-1-61284-278-3

Electronic_ISBN

978-0-7695-4350-5

Type

conf

DOI

10.1109/CDCIEM.2011.175

Filename

5748208