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Embodied energy and cost of high temperature thermal energy storage systems for use with concentrated solar power plants

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dc.contributor.authorJacob, R.
dc.contributor.authorBelusko, M.
dc.contributor.authorFernández, A.I.
dc.contributor.authorCabeza, L.F.
dc.contributor.authorSaman, W.
dc.contributor.authorBruno, F.
dc.date.issued2016
dc.descriptionLink to a related website: https://repositori.udl.cat/bitstream/10459.1/58519/1/024725.pdf, Open Access via Unpaywall
dc.description.abstractThe intermittency of renewable energy systems remains one of the major hurdles preventing a large scale uptake of these technologies and concentrated solar power (CSP) systems are no different. However, CSP has the benefit of being able to store excess heat using thermal energy storage (TES). For the uptake of CSP with TES it must be demonstrated that the technology is both economically as well as environmentally feasible. This paper aims to investigate the economic and environmental impact of several TES options that are available for CSP systems. The investigated systems include an encapsulated phase change material (PCM) system, a coil-in-tank PCM system and a liquid sodium TES system. The economic impact in the current study refers to the capital cost (CAPEX) of each system including the tank, storage material, encapsulation cost (if applicable) and allowances for construction and engineering. The environmental impact of each system is accounted by calculating the embodied energy of each of the system components. Each storage system will be required to store a comparable amount of energy so that reliable conclusions can be drawn. The results from this analysis conclude that the encapsulated PCM (EPCM) and coil-in-tank system represent an embodied energy of roughly one third of the corresponding state-of-the-art two-tank molten salt system.Furthermore, the EPCM and coil-in-tank systems result in CAPEX reductions of 50% and 25% over the current state-of-the-art two-tank molten salt system. The liquid sodium system was found to result in higher embodied energy and CAPEX than any previously studied TES system. Finally, the advantages and disadvantages of each system was discussed and compared to previous literature.
dc.identifier.citationApplied Energy, 2016; 180:586-597
dc.identifier.doi10.1016/j.apenergy.2016.08.027
dc.identifier.issn0306-2619
dc.identifier.issn1872-9118
dc.identifier.urihttps://hdl.handle.net/11541.2/122226
dc.language.isoen
dc.publisherElsevier
dc.relation.fundingAustralian Government through the Australian Renewable Energy Agency (ARENA)
dc.relation.fundingSpanish Government ENE2015-64117-05-1-R
dc.relation.fundingSpanish Government ENE2015-64117-05-2-R
dc.relation.fundingEuropean Union's Seventh Framework Programme (FP7) (INNOSTORAGE) PIRSES-GA-2013-610692
dc.rightsCopyright 2016 Elsevier. All rights reserved.
dc.source.urihttp://dx.doi.org/10.1016/j.apenergy.2016.08.027
dc.subjectembodied energy
dc.subjectenvironmental impact
dc.subjecthigh temperature thermal energy storage
dc.subject(TES) systems
dc.subjectconcentrated solar power (CSP) systems
dc.subjectphase change materials (PCMs)
dc.titleEmbodied energy and cost of high temperature thermal energy storage systems for use with concentrated solar power plants
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916081210201831

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