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Borehole modelling: a comparison between a steady-state model and a novel dynamic model in a real ON/OFF GSHP operation

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Borehole modelling: a comparison between a steady-state model and a novel dynamic model in a real ON/OFF GSHP operation

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dc.contributor.author De Rosa, M. es_ES
dc.contributor.author Ruiz Calvo, Félix es_ES
dc.contributor.author Corberán Salvador, José Miguel es_ES
dc.contributor.author Montagud Montalvá, Carla Isabel es_ES
dc.contributor.author Tagliafico, L.A. es_ES
dc.date.accessioned 2016-04-26T10:23:04Z
dc.date.available 2016-04-26T10:23:04Z
dc.date.issued 2014
dc.identifier.issn 1742-6588
dc.identifier.uri http://hdl.handle.net/10251/62936
dc.description.abstract The correct design and optimization of complex energy systems requires the ability to reproduce the dynamic thermal behavior of each system component. In ground source heat pump (GSHP) systems, modelling the borehole heat exchangers (BHE) dynamic response is especially relevant in the development of control strategies for energy optimization purposes. Over the last years, several models have been developed but most of them are based on steady state approaches, which makes them unsuitable for short-term simulation purposes. In fact, in order to accurately predict the evolution of the fluid temperatures due to the ON/OFF cycles of the heat pump, it is essential to correctly characterize the dynamic response of BHE for very short time periods. The aim of the present paper is to compare the performance of an analytical steady-state model, available in TRNSYS environment (Type 557), with a novel short-term dynamic model. The new dynamic model is based on the thermal-network approach coupled with a vertical discretization of the borehole which takes into account both the advection due to the fluid circulating along the U-tube, and the heat transfer in the borehole and in the ground. These two approaches were compared against experimental data collected from a real GSHP system installed at the Universitat Polit ècnica de Val ència. The analysis was performed comparing the outlet temperature profiles predicted by both models during daily standard ON/OFF operating conditions, both in heating and cooling mode, and the between both approaches were highlighted. Finally, the obtained results have been discussed focusing on the potential impact that the differences found in the prediction of the temperature evolution could have in design and optimization of GSHP systems. es_ES
dc.language Inglés es_ES
dc.publisher IOP Publishing es_ES
dc.relation.ispartof Journal of Physics: Conference Series es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject HEAT-EXCHANGERS es_ES
dc.subject SIMULATION es_ES
dc.subject SYSTEMS es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Borehole modelling: a comparison between a steady-state model and a novel dynamic model in a real ON/OFF GSHP operation es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1088/1742-6596/547/1/012008
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ingeniería Energética - Institut d'Enginyeria Energètica es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation De Rosa, M.; Ruiz Calvo, F.; Corberán Salvador, JM.; Montagud Montalvá, CI.; Tagliafico, L. (2014). Borehole modelling: a comparison between a steady-state model and a novel dynamic model in a real ON/OFF GSHP operation. Journal of Physics: Conference Series. 547:1-10. doi:10.1088/1742-6596/547/1/012008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1088/1742-6596/547/1/012008 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 10 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 547 es_ES
dc.relation.senia 285442 es_ES


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