Modèle de simulation pour les échangeurs de chaleur enterrés à boucle sol-eau.
Simulation model for ground loop heat exchangers.
Auteurs : YAVUZTURK C., CHIASSON A. D., NYDAHL J. E.
Résumé
A detailed borehole heat exchanger model is presented, cast as a TRNSYS component model, for use in ground source heat pump system simulations with optimization of system subcomponents. The proposed borehole heat exchanger model is based on non-dimensionalized short time step response factors, and includes a time-dependent borehole thermal resistance that is due to transient responses from the surrounding ground and short time-step thermal storage effects of the borehole grout and heat carrier fluid. These effects have been accounted for by developing a finite element model of a borehole heat exchanger where the fully transient borehole thermal response is modelled and coupled to a short time step ground response factor model. Furthermore, each response factor function (g-function), describing the thermal response of a particular borehole field to a unit heat pulse is developed to allow for varying borehole spacing-to-depth ratios so that borehole spacing is independent of the borehole depth. The model is developed with the specific objective use in optimization problems for hybrid ground source heat pumps systems. A detailed model validation and sensitivity analyses are presented and discussed.
Détails
- Titre original : Simulation model for ground loop heat exchangers.
- Identifiant de la fiche : 2010-0249
- Langues : Anglais
- Source : 2009 ASHRAE Annual Conference CD. Transactions papers presented at the 2009 ASHRAE Annual Conference: Louisville, KY, June 2009. Volume 115, part 2.
- Date d'édition : 21/06/2009
Liens
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Indexation
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Echangeurs de chaleur sol-liquide : examen des ...
- Auteurs : FAN R., MA Z.
- Date : 04/2006
- Langues : Chinois
- Source : HV & AC - vol. 36 - n. 184
- Formats : PDF
Voir la fiche
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Transfert de chaleur d'un échangeur de chaleur ...
- Auteurs : YUAN Y., LEI B., YU N., et al.
- Date : 04/2008
- Langues : Chinois
- Source : HV & AC - vol. 38 - n. 210
- Formats : PDF
Voir la fiche
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Numerical simulation of ground heat and water t...
- Auteurs : NAM Y., OOKA R.
- Date : 20/05/2008
- Langues : Anglais
- Source : 9th IEA Heat Pump Conference 2008: advances and prospects in technology, applications and markets. Conference proceedings [CD-ROM + abstracts].
Voir la fiche
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A new approach to modelling ground heat exchang...
- Auteurs : BANDYOPADHYAY G., KULKARNI M., MANN M.
- Date : 21/06/2008
- Langues : Anglais
- Source : ASHRAE Transactions. 2008 Annual Meeting, Salt Lake City, UT. Volume 114, part 2 + CD-ROM.
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Simulation and optimization of ground source he...
- Auteurs : SPITLER J. D., LIU X., REES S. J., et al.
- Date : 02/05/2005
- Langues : Anglais
- Source : 8th IEA Heat Pump Conference 2005: global advances in heat pump technology, applications, and markets. Conference proceedings [CD-ROM].
Voir la fiche