NDLI: Geocooling of low energy office buildings with borehole heat exchangers

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Geocooling of low energy office buildings with borehole heat exchangers

Content Provider	Semantic Scholar
Author	Pahud, Daniel Belliardi, Marco
Copyright Year	2012
Abstract	Le potentiel de geocooling avec sondes geothermiques verticales est analyse pour des bâtiments administratifs a basse consommation d’energie. Un outil de simulation dynamique a ete developpe pour simuler thermiquement le systeme complet et ses interactions thermiques entre les divers sous-systemes, incluant le bâtiment, l’emission d’energie dans le bâtiment, les installations techniques et le champ de sondes geothermiques. La conception du bâtiment, la faisabilite technique du systeme et les limites du systeme couple au terrain sont discutees. Elles resultent de l’analyse des nombreuses simulations effectuees. Le potentiel de geocooling depend de la qualite thermique du bâtiment et de son systeme d’emission d’energie thermique. L’importance du taux de recharge du terrain est mise en evidence. Des regles simples de dimensionnement sont proposees pour le predimensionnement rapide d’un champ de sondes geothermiques. The potentiality of geocooling with borehole heat exchangers is analysed for low energy office buildings. A dynamic thermal simulation tool has been developed to simulate the overall system and the interconnected thermal interactions, including the building, the thermal energy emission, the technical installation and the borehole heat exchanger field. Building design, system technical feasibility and limits of the ground coupled system are discussed and result from the analysis of the numerous system simulations. Geocooling potential depends on the quality of the building design and its heat emission. The importance of the ground recharge ratio on the system design is highlighted. Simple design sizing keys are proposed for a fast pre-sizing of a borehole field for geocooling.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://repository.supsi.ch/3647/1/145-Pahud-2012-StatusSeminar.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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