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dc.contributor.authorMiró, Laia
dc.contributor.authorOró Prim, Eduard
dc.contributor.authorBoer, Dieter
dc.contributor.authorCabeza, Luisa F.
dc.description.abstractCurrently, there is an increasing interest in concentrated solar power (CSP) plants as alternative to produce renewable electricity at large scale by using mirrors to concentrate the solar energy and to convert it into high temperature heat. These facilities can be combined with thermal energy storage (TES) systems, which are, nowadays, one of the most feasible solutions in facing the challenge of the intermittent energy supply and demand. However, they are still in research process and, for that, there is a lack of environmental impact studies of these TES systems complementing solar plants. This paper accounts the environmental impact of three TES systems used nowadays in high temperature applications for CSP plants: first, a system which stores sensible heat in high temperature concrete; second, a system storing sensible heat in molten salts; and third, another system with molten salts but storing latent heat. All the systems are normalised in order to be comparable between them due to its initial storage capacity difference. The environmental impact is accounted by calculating the amount of embodied energy in the components of the different TES systems. Notice that embodied energy refers to the total energy inputs required to make a component. Between the three systems, the sensible heat system using concrete as storage material is the one with less environmental impact while the molten salts and PCM have a higher value of embodied energy, mainly due to the nitrate mixture used as storage material. Finally, advantages and disadvantages of the method proposed used are discussedca_ES
dc.description.sponsorshipThe work was partially funded by the Spanish government (project ENE2011-22722). The authors would like to thank the Catalan Government for the quality accreditation given to their research group GREA (2009 SGR 534). The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) under Grant agreement n PIRSES-GA-2013-610692 (INNOSTORAGE). Eduard Oró would like to thank the University of Lleida for his research fellowship. Laia Miró would like to thank the Spanish Government for her research fellowship (BES-2012-051861).ca_ES
dc.relation.isformatofVersió postprint del document publicat a
dc.relation.ispartofApplied Energy, 2015, vol 137, p. 793-799ca_ES
dc.rightscc-by-nc-nd, (c) Elsevier, 2015ca_ES
dc.subjectEmbodied energyca_ES
dc.subjectEnvironmental impactca_ES
dc.subjectHigh temperature thermal energy storageca_ES
dc.subject(TES) systemsca_ES
dc.titleEmbodied energy in thermal energy storage (TES) systems for high temperature applicationsca_ES

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cc-by-nc-nd, (c) Elsevier, 2015
Except where otherwise noted, this item's license is described as cc-by-nc-nd, (c) Elsevier, 2015