 Heating performance characteristics of the ground source heat pump system with energy-piles and energy-slabsChung-Eun Moon and Jong Min Choi Energy, 2015, vol. 81, issue C, 27-32 Abstract: Energy foundations and other thermo-active ground structure, energy wells, energy slabs, and pavement heating and cooling represent an innovative technology that contributes to environmental protection and provides substantial long-term cost savings and minimized maintenance. This paper focuses on earth-contact concrete elements that are already required for structural reasons, but which simultaneously work as heat exchangers. Pipes, energy-piles and energy-slabs filled with a heat carrier fluid are installed under conventional structural elements, forming the primary circuit of a geothermal energy system. The ground source heat pump system with energy-pile and energy-slab presented high heating performance due to the stability of entering water temperature from the ground loop heat exchanger. The minimum COPs of the heat pump unit for the energy-pile and energy-slab system were 4.2 and 4.5, respectively. These results are higher than the minimum COP certification standard of 3.45 for a closed ground loop heat pump unit. Keywords: Ground source heat pump; COP; Heating performance; Energy-pile; Energy-slab (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:81:y:2015:i:c:p:27-32 DOI: 10.1016/j.energy.2014.10.063 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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