A numerical study of geopolymer concrete thermal energy storage: Benchmarking TES module design and optimizing thermal performance

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dc.contributor.authorRahjoo, Mohammad
dc.contributor.authorRojas, Esther
dc.contributor.authorGoracci, Guido
dc.contributor.authorGaitero, Juan J.
dc.contributor.authorMartauz, Pavel
dc.contributor.authorDolado, Jorge S.
dc.contributor.institutionTecnalia Research & Innovation
dc.date.accessioned2024-07-24T12:01:22Z
dc.date.available2024-07-24T12:01:22Z
dc.date.issued2023-12-25
dc.descriptionPublisher Copyright: © 2023 The Authors
dc.description.abstractGeopolymer (GEO) concrete emerges as a potential high-temperature thermal energy storage (TES) material, offering a remarkable thermal storage capacity, approximately 3.5 times higher than regular Portland cement (OPC) concrete, without compromising its environmentally benign nature. This research dissects the application of GEO concrete as a high-temperature TES material, primarily focusing on its optimization and scalability. The introductory part of the study involves the development and validation of a three-dimensional numerical model using computational fluid dynamics (CFD). The model demonstrated an average accuracy rate of 5 %, as justified by empirical data. Later, a two-tiered investigation to determine the optimal design for GEO concrete TES systems was investigated. Three different geometries plus the impact of crucial parameters such as air velocity, tube diameter, and module size on the thermal storage capacity (Q) studied. It further extends into a parametric examination, exploring a variety of tube sizes, arrangements, and configurations. It is found that air velocity primarily influences Q. A subsequent phase provides an analysis of the thermodynamic effects brought by the inclusion of tubes within TES modules through an equivalent parametric study. It exposes the thermal resistance resulting from tube insertion. The study reinforces the superior thermal performance of tubeless GEO concrete TES configurations, as signified by overall heat transfer rate (Q̇). The study also signals the significant roles of key parameters in determining the temperature (T) and Q within TES unit using Pearson's correlation coefficient equation. As a final observation, this work emphasizes the sustained significance of on-site evaluations to consistently monitor the interplay between TES materials and high-temperature fluids (HTFs) over extended periods for viability analysis purposes.en
dc.description.sponsorshipThis work was born under the umbrella of the project “Energy storage solutions based on concrete (E-CRETE)” ( RTI2018-098554-B-I00 ) funded by MCIN/ AEI /10.13039/501100011033 (Program I+D+i RETOS INVESTIGACIÓN 2018). Mohammad Rahjoo acknowledges the grant PRE2019-087676 funded by MCIN/ AEI /10.13039/501100011033 and co-financed by the European Social Fund under the 2019 call for grants for predoctoral contracts for the training of doctors contemplated in the State Training Subprogram of the State Program for the Promotion of Talent and its Employability in R&D&I, within the framework of the State Plan for Scientific and Technical Research and Innovation 2017–2020. In addition, the economic support from POVAZSKA is acknowledged. Jorge S. Dolado acknowledges the funding from the Gobierno Vasco UPV/EHU (project no. IT1569-22 ). This work was born under the umbrella of the project “Energy storage solutions based on concrete (E-CRETE)” (RTI2018-098554-B-I00) funded by MCIN/AEI/10.13039/501100011033 (Program I+D+i RETOS INVESTIGACIÓN 2018). Mohammad Rahjoo acknowledges the grant PRE2019-087676 funded by MCIN/AEI/10.13039/501100011033 and co-financed by the European Social Fund under the 2019 call for grants for predoctoral contracts for the training of doctors contemplated in the State Training Subprogram of the State Program for the Promotion of Talent and its Employability in R&D&I, within the framework of the State Plan for Scientific and Technical Research and Innovation 2017–2020. In addition, the economic support from POVAZSKA is acknowledged. Jorge S. Dolado acknowledges the funding from the Gobierno Vasco UPV/EHU (project no. IT1569-22).
dc.description.statusPeer reviewed
dc.identifier.citationRahjoo , M , Rojas , E , Goracci , G , Gaitero , J J , Martauz , P & Dolado , J S 2023 , ' A numerical study of geopolymer concrete thermal energy storage : Benchmarking TES module design and optimizing thermal performance ' , Journal of Energy Storage , vol. 74 , 109389 . https://doi.org/10.1016/j.est.2023.109389
dc.identifier.doi10.1016/j.est.2023.109389
dc.identifier.issn2352-152X
dc.identifier.urihttps://hdl.handle.net/11556/3137
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85175572700&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofJournal of Energy Storage
dc.relation.projectIDGobierno Vasco UPV
dc.relation.projectIDPOVAZSKA
dc.relation.projectIDState Plan for Scientific and Technical Research and Innovation
dc.relation.projectIDEuskal Herriko Unibertsitatea, EHU, IT1569-22
dc.relation.projectIDEuropean Social Fund Plus, ESF
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsGeopolymer concrete
dc.subject.keywordsHeat exchanger design
dc.subject.keywordsHigh-temperature concrete
dc.subject.keywordsNumerical modeling
dc.subject.keywordsThermal energy storage
dc.subject.keywordsRenewable Energy, Sustainability and the Environment
dc.subject.keywordsEnergy Engineering and Power Technology
dc.subject.keywordsElectrical and Electronic Engineering
dc.titleA numerical study of geopolymer concrete thermal energy storage: Benchmarking TES module design and optimizing thermal performanceen
dc.typejournal article
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