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dc.contributor.authorArias Montenegro, Francisco Javier
dc.contributor.authorHeras Jiménez, Salvador Augusto de las
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.identifier.citationArias, F.J.; De Las Heras, S.A. Gas film heat transfer as enhancement strategy for phase change materials. "Energy Storage", 16 Octubre 2019, vol.1, núm. 6, e95:1-e95:6
dc.description.abstractIn this work, consideration is given to an alternative strategy for phase change materials (PCMs) heat transfer enhancement with particular reference to horizontal plates. In contrast with current approaches in which heat transfer enhancement is pursued either by adapted geometries or acting on the thermal conductivity coefficient of a given PCM, here the problem is tackled by preventing the formation and contact of the front of solidification at the wall of the vessel by the deliberate presence of a gas film between the wall and the PCM. Because the presence of such a film, the front of solidification only can attains a certain critical thickness before gravitationally sinks by its own weight and then eliminating the continuous growth of the solid layer with the consequent reduction of conductive heat transfer and power output of the system as the solidification takes place which translates into an enhanced and steady power during the entire solidification process. It is shown that because the critical thickness of the solidified layer before sinks is a few millimeters or less and then smaller than practical gas films, therefore the heat transfer is controlled by the thickness and the thermal conductivity of the film. Additional R&D is required in order to arrive at a reliable practical and safe design
dc.format.extent6 p.
dc.publisherWiley (John Wiley & Sons)
dc.subjectÀrees temàtiques de la UPC::Energies
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshHeat -- Transmission
dc.subject.lcshEnergy storage
dc.subject.otherPCMs heat transfer enhancement
dc.subject.otherThermal storage
dc.subject.otherStationary power
dc.titleGas film heat transfer as enhancement strategy for phase change materials
dc.subject.lemacCalor -- Transmissió
dc.subject.lemacEnergia -- Emmagatzematge
dc.contributor.groupUniversitat Politècnica de Catalunya. SIC - Sistemes Intel·ligents de Control
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/ MINECO /1PE/ RYC-2013-13459
upcommons.citation.authorArias, F.J.; De Las Heras, S.A.
upcommons.citation.publicationNameEnergy Storage

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