Experimental study of the operative characteristics of a ground-coupled heat pump in intermittent heating mode

Author

Wei, Li ; Xinguo, Li ; Jun, Zhao

Author_Institution

Dept. of Energy & Mech. Eng., Tianjin Inst. of Urban Construct, Tianjin, China

fYear

2010

fDate

26-28 June 2010

Firstpage

1621

Lastpage

1623

Abstract

An experimental study on the intermittent operative characteristics of a ground-coupled heat pump in heating mode was performed. The inlet and outlet temperature variations of buried coil evaporator and condenser are presented. The results show that the intermittent operation mode can minify the decreasing of ground temperature and heighten the temperature of fluid entering heat pump, thus it can improve the operation performance of heat pump. Moreover, the intermittent operation can also increase the quantity of heat absorbed from ground and enhance utilization efficiency of geothermal energy. The present study can provide a preference for practical design and operation of ground-coupled heat pump.

Keywords

condensers (steam plant); evaporation; heat pumps; heating; buried coil evaporator; condenser; geothermal energy; ground temperature; ground-coupled heat pump; intermittent heating mode; intermittent operative characteristics; Coils; Geothermal energy; Heat engines; Heat pumps; Land surface temperature; Mechanical engineering; Power engineering and energy; Programmable control; Thermal engineering; Ground temperation restoration; Heat pump; Intermittent heating mode;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5536940

Filename

5536940