Title :
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
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;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776109
