Dépôt numérique
RECHERCHER

New concept of combined hydro-thermal response tests (H/TRTS) for ground heat exchangers.

Rouleau, Jean; Gosselin, Louis; Raymond, Jasmin (2016). New concept of combined hydro-thermal response tests (H/TRTS) for ground heat exchangers. Geothermics , vol. 62 . p. 103-114. DOI: 10.1016/j.geothermics.2016.03.002.

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Résumé

Current thermal response tests, used to estimate the subsurface thermal conductivity in the geothermal domain, are not designed to take into account groundwater flows. To measure the flow parameters, a new concept has been developed. Heating cables are installed within a borehole in contact to the formation, with three temperature probes strategically located at the edge of the borehole. Study of the evolution of temperature for each probe during both a heat injection phase and a recovery period allows determining ground thermal conductivity, groundwater flow velocity and orientation. Numerical simulations have been used to validate the proposed concept and establish its limits.

Type de document:
Mots-clés libres: geothermal; groundwater; ground heat exchanger; thermal response test; thermal conductivity
Centre: Centre Eau Terre Environnement
Date de dépôt: 20 déc. 2016 16:22
Dernière modification: 20 déc. 2016 16:22
URI: http://espace.inrs.ca/id/eprint/4011

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