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dc.contributor.authorCabeza, Luisa F.
dc.contributor.authorMehling, Harald
dc.contributor.authorHiebler, Stefan
dc.contributor.authorZiegler, F.
dc.date.accessioned2015-01-23T08:58:24Z
dc.date.issued2002
dc.identifier.issn1359-4311
dc.identifier.urihttp://hdl.handle.net/10459.1/47728
dc.description.abstractEfficient and reliable storage systems for thermal energy are an important requirement in many applications where heat demand and supply or availability do not coincide. Heat and cold stores can basically be divided in two groups. In sensible heat stores the temperature of the storage material is increased significantly. Latent heat stores, on the contrary, use a storage material that undergoes a phase change (PCM) and a small temperature rise is sufficient to store heat or cold. The major advantages of the phase change stores are their large heat storage capacity and their isothermal behavior during the charging and discharging process. However, while unloading a latent heat storage, the solid–liquid interface moves away from the heat transfer surface and the heat flux decreases due to the increasing thermal resistance of the growing layer of the molten/solidified medium. This effect can be reduced using techniques to increase heat transfer. In this paper, three methods to enhance the heat transfer in a cold storage working with water/ice as PCM are compared: addition of stainless steel pieces, copper pieces (both have been proposed before) and a new PCM-graphite composite material. The PCM-graphite composite material showed an increase in heat flux bigger than with any of the other techniques.ca_ES
dc.language.isoengca_ES
dc.publisherElsevier Scienceca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/S1359-4311(02)00035-2ca_ES
dc.relation.ispartofApplied Thermal Engineering, 2002, vol. 22, p. 1141–1151ca_ES
dc.rights(c) Elsevier Science, 2002ca_ES
dc.subjectPhase change materialca_ES
dc.subjectThermal energy storageca_ES
dc.subjectHeat flux enhancementca_ES
dc.titleHeat transfer enhancement in water when used as PCM in thermal energy storageca_ES
dc.typearticleca_ES
dc.identifier.idgrec001692
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/S1359-4311(02)00035-2
dc.date.embargoEndDate2025-01-01


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