Heat transfer enhancement of fatty acids when used as PCMs in thermal energy storage

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dc.contributor.authorMazman, Muhsin
dc.contributor.authorCabeza, Luisa F.
dc.contributor.authorMehling, Harald
dc.contributor.authorPaksoy, Halime Ö.
dc.contributor.authorEvliya, Hunay
dc.date.accessioned2015-01-28T09:39:04Z
dc.date.embargoEndDate2025-01-01
dc.date.issued2008
dc.description.abstractPhase change materials (PCM) used in latent heat storage systems usually have very low thermal conductivities. This is a major drawback in maintaining the required heat exchange rate between PCM and heat transfer fluid. This paper investigates the enhancement of the heat transfer between PCM and heat transfer fluid, using high thermal conductivity as additives like stainless steel pieces, copper pieces and graphite–PCM composite material. In the experiments, palmitic–lauric acid (80:20) (PL) and stearic–myristic acid (80:20) (SM) were used as PCMs. Test results show that heat transfer enhancement of copper pieces was better at 0.05 Ls 1 flow rate compared to 0.025 L s 1. Using copper as an additive increased the heat transfer rate 1.7 times for melting and 3.8 times for freezing when flow rate was 0.050 L s 1. Decreasing the flow rate from 0.050 to 0.025 Ls 1, increased the melting times 1.3 times and freezing times 1.8 times, decreasing heat transfer rates accordingly. The best result of heat transfer enhancement was observed for the PCM– graphite composite. However, changing the flow rate did not affect the heat transfer rate when graphite was used as additive.ca_ES
dc.identifier.doihttps://doi.org/10.1002/er.1348
dc.identifier.idgrec010918
dc.identifier.issn1099-114X
dc.identifier.urihttp://hdl.handle.net/10459.1/47756
dc.language.isoengca_ES
dc.publisherJohn Wiley & Sonsca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1002/er.1348ca_ES
dc.relation.ispartofInternational Journal of Energy Research,2008, núm. 32, p. 135–143ca_ES
dc.rights(c) John Wiley & Sons, 2007ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.subjectfatty acidca_ES
dc.subjectheat transferca_ES
dc.subjectPCMca_ES
dc.titleHeat transfer enhancement of fatty acids when used as PCMs in thermal energy storageca_ES
dc.typearticleca_ES
dc.type.versionpublishedVersionca_ES
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