Transcription of GROUND-SOURCE (GEOTHERMAL) HEAT PUMPS
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GROUND-SOURCE (GEOTHERMAL) HEAT PUMPS
GROUND-SOURCE ( geothermal ) heat PUMPS by John W. LUND 1. INTRODUCTION When a geothermal resource temperature falls below the 40-50 C range, it is frequently impractical to use the fluid directly for most applications. A heat pump can be used to transfer heat from a low-temperature resource to that of a high-temperature reservoir, thus providing the higher temperature needed for space heating. The process can also be reversed by removing heat from a high-temperature resource and rejecting it to a lower temperature reservoir, thus providing cooling to a space.
energy efficiency ratio (EER). These terms are defined later in this paper. NOMENCLATURE (Kavanaugh, undated) Two basic types of ground-source heat pumps exist: ground-coupled and water-source. There are a variety of names for the ground-coupled heat …
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