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A novel TRNSYS type of a coaxial borehole heat exchanger for both short and mid term simulations: B2G model

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A novel TRNSYS type of a coaxial borehole heat exchanger for both short and mid term simulations: B2G model

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dc.contributor.author Cazorla-Marín, Antonio es_ES
dc.contributor.author Montagud- Montalvá, Carla es_ES
dc.contributor.author Tinti, Francesco es_ES
dc.contributor.author Corberán, José M. es_ES
dc.date.accessioned 2019-11-23T21:01:24Z
dc.date.available 2019-11-23T21:01:24Z
dc.date.issued 2019 es_ES
dc.identifier.issn 1359-4311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/131594
dc.description.abstract [EN] A dynamic model of a ground source heat pump system is a very useful tool in order to optimize its design and operation. In order to fairly predict the performance of such a system, the dynamic evolution of the fluid entering the heat pump and coming from the borehole heat exchanger (BHE) must be accurately reproduced not only in the long term but also in the short-mid term operating conditions, as it directly affects the coefficient of performance of the heat pump unit. In this context, the B2G model was developed to reproduce the short-term dynamic evolution of the fluid temperature inside the BHE. This work presents the new upgraded version of the B2G dynamic model for a coaxial BHE, which includes several new features to better reproduce not only the short-term but also the mid-term behaviour of the BHE. For that purpose, the model of the surrounding ground has been improved: vertical heat conduction in the grout and ground, heterogenous ground with different layers, and a higher number of ground nodes in the thermal network considered in the model were added, which are automatically located by means of polynomial correlations for any type of ground, geometry and operating conditions. This novel approach has been implemented in TRNSYS for accurately modelling the dynamic behaviour of a coaxial BHE with low computational cost (2.5¿s for a 24¿h simulation period in a modern computer). The model has been validated against experimental data from a dual source heat pump installation in Tribano (Padua, Italy) and has proven capable of accurately reproducing the short-mid term (up to five days) behaviour of the BHE, with a deviation lower than 0.12¿K. es_ES
dc.description.sponsorship The present work has been supported by the European Community Horizon 2020 Program for European Research and Technological Development (2014-2020) inside the framework of the project 656889 –GEOTeCH (Geothermal Technology for Economic Cooling and Heating) and by the Generalitat Valenciana inside the program “Ayudas para la contratación de personal investigador en formación de carácter predoctoral (ACIF/2016/131)”. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation GV/ACIF/2016/131 es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ground source heat pump es_ES
dc.subject Borehole heat exchanger es_ES
dc.subject Dynamic modelling es_ES
dc.subject B2G model es_ES
dc.subject Coaxial borehole heat exchanger es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.subject.classification TERMODINAMICA APLICADA (UPV) es_ES
dc.title A novel TRNSYS type of a coaxial borehole heat exchanger for both short and mid term simulations: B2G model es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2019.114500 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/656889/EU es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2022-01-31 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Cazorla-Marín, A.; Montagud- Montalvá, C.; Tinti, F.; Corberán, JM. (2019). A novel TRNSYS type of a coaxial borehole heat exchanger for both short and mid term simulations: B2G model. Applied Thermal Engineering. 164(114500):1-15. https://doi.org/10.1016/j.applthermaleng.2019.114500 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.applthermaleng.2019.114500 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 15 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 164 es_ES
dc.description.issue 114500 es_ES
dc.relation.pasarela S\395914 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder European Commission es_ES


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