Life cycle assessment of the inclusion of phase change materials in lightweight buildings

dc.contributor.authorVega, Mariela
dc.contributor.authorLlantoy, Noelia
dc.contributor.authorChàfer, Marta
dc.contributor.authorUshak, Svetlana
dc.contributor.authorCabeza, Luisa F.
dc.description.abstractThis research evaluates environmental impact of including phase change materials in the envelope of lightweight buildings constructed off-site with dimensions 2.5 × 2.5 × 2.43 m3, located in the cities of Antofagasta and Calama, both in Chile. These cities are located in a cold desert climate zone, corresponding to a K¨oppen Climate Classification subtype 'BWk', with an average annual temperature difference of 4.8 ◦C. To evaluate the environmental impact quantitatively from 'cradle to grave' life cycle assessment was used, it is a methodology based on International Organization for Standardization 14,040 and 14,044 standards. With this methodology, the manufacturing and operational phases and environmental payback period were evaluated. Results show that phase change materials addition in walls and roof of a building decreases electric energy (52.8 % in Antofagasta and 36.3 % in Calama) consumption and environmental impact while in operation, corresponding to 51.4 % and 84.4 % in the cities of Antofagasta and Calama, respectively. In addition, cubicles with phase change materials exhibit an environmental payback period below 15 %. Therefore, a decision of using phase change materials for lightweight buildings could be made in any subtype 'BWk' area of K¨oppen climate classification.
dc.description.sponsorshipThis work has been funded by ANID (CONICYT) from Chile FONDECYT/REGULAR 1170675, FONDAP 15110019 and PCI/REDES N°170131 projects; from Spain by Ministerio de Ciencia, Innovación y Universidades de España (RTI2018-093849-B-C31 - MCIU/AEI/FEDER, UE), and Ministerio de Ciencia, Innovación y Universidades - Agencia Estatal de Investigación (AEI) (RED2018-102431-T). Mariela Vega acknowledges support by Doctorado en Ingeniería de Procesos de Minerales of Universidad de Antofagasta. Authors at University of Lleida would like to thank Catalan Government for quality accreditation given to their research group (2017 SGR 1537). GREiA is certified agent TECNIO in the category of technology developers from the Government of Catalonia. This work is partially supported by ICREA under the ICREA Academia programme.
dc.relationinfo:eu-repo/grantAgreement/MICIU//RED2018-102431-T/ES/RED ESPAÑOLA EN ALMACENAMIENTO DE ENERGIA TERMICA/
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093849-B-C31/ES/METODOLOGIA PARA EL ANALISIS DE TECNOLOGIAS DE ALMACENAMIENTO DE ENERGIA TERMICA HACIA UNA ECONOMIA CIRCULAR/
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofJournal of Energy Storage, 2022, vol. 56, Part B, p. 105903-1-105903-12
dc.rightscc-by-nc-nd (c) Elsevier, 2022
dc.subjectLife cycle assessment (LCA)
dc.subjectLightweight building
dc.subjectPhase change material
dc.subjectEnergy efficiency
dc.subjectEnvironmental impact
dc.subjectGlobal Warming Potential (GWP)
dc.titleLife cycle assessment of the inclusion of phase change materials in lightweight buildings
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