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Numerical Study on the Thermal Performance of a Single U-Tube Borehole Heat Exchanger Using Nano-Enhanced Phase Change Materials

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Numerical Study on the Thermal Performance of a Single U-Tube Borehole Heat Exchanger Using Nano-Enhanced Phase Change Materials

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dc.contributor.author Javadi, Hossein es_ES
dc.contributor.author Urchueguía Schölzel, Javier Fermín es_ES
dc.contributor.author Mousavi Ajarostaghi, Seyed Soheil es_ES
dc.contributor.author Badenes Badenes, Borja es_ES
dc.date.accessioned 2021-05-21T03:32:07Z
dc.date.available 2021-05-21T03:32:07Z
dc.date.issued 2020-10-03 es_ES
dc.identifier.uri http://hdl.handle.net/10251/166591
dc.description.abstract [EN] To investigate the impacts of using nano-enhanced phase change materials on the thermal performance of a borehole heat exchanger in the summer season, a three-dimensional numerical model of a borehole heat exchanger is created in the present work. Seven nanoparticles including Cu, CuO, Al2O3, TiO2, SiO2, multi-wall carbon nanotube, and graphene are added to the Paraffin. Considering the highest melting rate and lowest outlet temperature, the selected nano-enhanced phase change material is evaluated in terms of volume fraction (0.05, 0.10, 0.15, 0.20) and then the shape (sphere, brick, cylinder, platelet, blade) of its nanoparticles. Based on the results, the Paraffin containing Cu and SiO2 nanoparticles are found to be the best and worst ones in thermal performance improvement, respectively. Moreover, it is indicated that the increase in the volume fraction of Cu nanoparticles could enhance markedly the melting rate, being 0.20 the most favorable value which increased up to 55% the thermal conductivity of the nano-enhanced phase change material compared to the pure phase change material. Furthermore, the blade shape is by far the most appropriate shape of the Cu nanoparticles by considering about 85% melting of the nano-enhanced phase change materia es_ES
dc.description.sponsorship This research work has been supported financially by the European project GEOCOND (funded by the European Union's Horizon 2020 research and innovation program under grant agreement No 727583) and by the European project GEO4CIVHIC (funded by the European Union's Horizon 2020 research and innovation program under grant agreement No 792355). es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation EC/727583 es_ES
dc.relation.ispartof Energies es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Geothermal energy es_ES
dc.subject Borehole heat exchanger es_ES
dc.subject Nano-enhanced phase change material es_ES
dc.subject Thermal performance es_ES
dc.subject Computational fluid dynamics es_ES
dc.subject Numerical simulation es_ES
dc.subject.classification MECANICA DE FLUIDOS es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Numerical Study on the Thermal Performance of a Single U-Tube Borehole Heat Exchanger Using Nano-Enhanced Phase Change Materials es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/en13195156 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/727583/EU/Advanced materials and processes to improve performance and cost-efficiency of Shallow Geothermal systems and Underground Thermal Storage/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/792355/EU/Most Easy, Efficient and Low Cost Geothermal Systems for Retrofitting Civil and Historical Buildings/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Javadi, H.; Urchueguía Schölzel, JF.; Mousavi Ajarostaghi, SS.; Badenes Badenes, B. (2020). Numerical Study on the Thermal Performance of a Single U-Tube Borehole Heat Exchanger Using Nano-Enhanced Phase Change Materials. Energies. 13(19):1-30. https://doi.org/10.3390/en13195156 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/en13195156 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 30 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 13 es_ES
dc.description.issue 19 es_ES
dc.identifier.eissn 1996-1073 es_ES
dc.relation.pasarela S\418802 es_ES
dc.contributor.funder European Commission es_ES


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