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dc.creatorCui, P.en_US
dc.creatorMan, Y.en_US
dc.creatorFang, Z.en_US
dc.date.accessioned2007-05-07T20:43:42Z
dc.date.available2007-05-07T20:43:42Z
dc.date.issued2006en_US
dc.identifier.otherESL-IC-06-11-124en_US
dc.identifier.urihttp://hdl.handle.net/1969.1/5265
dc.description.abstractGround-coupled heat pump (GCHP) systems have been gaining increasing popularity for space conditioning in residential and commercial buildings. The geothermal heat exchanger (GHE) is devised for extraction or injection of thermal energy from/into the ground. This paper summarizes the authors' studies on heat transfer in ground-coupled heat pump systems. Taking the fluid axial convective heat transfer and thermal “short-circuiting” among U-tube legs into account, a quasi-3-D model has been solved for heat transfer inside boreholes. The transient 2-D temperature response in a semi-infinite medium with a line-source of finite length has also been derived for heat conduction outside boreholes. In order to investigate the impact of groundwater advection on the performance of ground heat exchangers, an analytical solution is obtained for a line heat source in an infinite porous medium with groundwater advection. These explicit expressions have more solid theoretical basis, and can be easily incorporated into computer programs for thermal analysis and engineering design of ground heat exchangers.en_US
dc.format.extent255763 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherEnergy Systems Laboratory (http://esl.tamu.edu)en_US
dc.publisherTexas A&M University (http://www.tamu.edu)en_US
dc.subjectgeothermal heat exchangeren_US
dc.subjectgroundwater advectionen_US
dc.subjectheat transferen_US
dc.titleModeling of Heat Transfer in Geothermal Heat Exchangersen_US


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