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Theses

Développement et validation expérimentale de modèles d'échangeurs géothermiques horizontaux et verticaux pour le chauffage de bâtiments résidentiels

Abstract : The inreasing use of geothermal heat pumps on the French territory represents an important reduction potential of greenhouse gases emissions. To encourage this trend, it is necessary to accurately assess the annual performances of geothermal heat pumps in comparison with the other existing heating systems. In such a context, this thesis aims to establish a precise and functional model for calculating the annual energy performances of geothermal heat pumps with horizontal or vertical ground heat exchangers.
After a literature review of horizontal and vertical ground heat exchangers models, the geothermal borehole models more adapted to dynamic simulations are identified and their validity ranges are reported. Concerning the horizontal ground heat exchangers, we could not find any suitable model for our purposes. A semi-analytical model, is then developed in two versions for two different time ranges of heat exchanges. To evaluate the model, an experimental set-up, equipped with an innovative device permitting a distributed temperature measurement by optical fibers is installed. A validation test elaborated and applied on the horizontal ground heat exchanger model allows to confirm its relevance. Finally, a calculation method of the seasonal performance factor is developed for heat pumps equipped with horizontal or vertical ground heat exchangers. The application of this method to a typical residential building in the climate of Orléans gives promising results.
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https://pastel.archives-ouvertes.fr/pastel-00585632
Contributor : Bibliothèque Mines Paristech <>
Submitted on : Wednesday, April 13, 2011 - 3:39:17 PM
Last modification on : Wednesday, October 14, 2020 - 4:02:19 AM
Long-term archiving on: : Thursday, July 14, 2011 - 2:46:38 AM

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  • HAL Id : pastel-00585632, version 1

Citation

Mickaël Philippe. Développement et validation expérimentale de modèles d'échangeurs géothermiques horizontaux et verticaux pour le chauffage de bâtiments résidentiels. Génie des procédés. École Nationale Supérieure des Mines de Paris, 2010. Français. ⟨pastel-00585632⟩

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