Thermal accumulation effect of ground-coupled heat pump system

Author

Fuxin, Niu ; Long, Ni ; Yang, Yao ; Yiqiang, Jiang ; Zuiliang, Ma

Author_Institution

Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

22-24 April 2011

Firstpage

1805

Lastpage

1807

Abstract

A software TRNSYS is used to simulate operation characteristics of ground-coupled heat pump for an office building. It analysis the soil temperature changes and ground source heat pump system efficiency last several years in different climates conditions. The results show that the greater the difference between cooling load and heat load, the greater the annual average temperature of soil increases, the system efficiency down faster. The soil average temperature raises 6.5 degree after the system running five years. The temperature decreases 2.4 degree in Qiqihar. To ensure long-term stable operation of the system, proposing solution to thermal accumulation problem of geothermal ground source heat pump system.

Keywords

building management systems; energy conservation; geothermal power; heat pumps; thermal analysis; cooling load; energy-saving air conditioning technology; geothermal ground source heat pump system; ground source heat pump system efficiency; ground-coupled heat pump system; heat load; office building; software TRNSYS; soil temperature; thermal accumulation effect; Heat engines; Heat pumps; Heat sinks; Heating; Land surface temperature; Soil; coupled heat pump; solution; thermal accumulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5776109

Filename

5776109