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Enhancing efficiency in solar non-intrusive desalination: solar still prototype optimization in Southwest Europe

dc.contributor.authorPacheco, André
dc.contributor.authorSequeira, Claudia
dc.contributor.authorGomes Moreira da Silva, Manuela Fernanda
dc.contributor.authorSerrão Sousa, Vânia
dc.date.accessioned2025-02-17T10:33:00Z
dc.date.available2025-02-17T10:33:00Z
dc.date.issued2025-04
dc.description.abstractAccess to freshwater is a pressing global challenge. Despite being irreplaceable freshwater is an increasingly scarce resource, especially in regions as Southern Europe, due to high human pressure and climate change. Solar desalination presents a low impact solution to produce freshwater from seawater, particularly in sun-rich regions. The main goal of this study was to develop a modular solar desalination system based on a non-intrusive approach, with simple assemblage, installation, and maintenance, to produce freshwater for non-potable purposes. The modular design was chosen to allow scalability and adaptability, enabling effective response to variable water demands in small island communities. The case study is a small island from Algarve, Portugal (Southwest Europe). The study evaluates the performance enhancements accomplished by transitioning from an initial prototype solar desalination unit, smaller and with a simple design, to an enhanced pilot-scale system designed to improve efficiency and water output. The research showed that both systems exhibit a high conductivity removal (higher than 99 %), demonstrating the potential of this technology to produce freshwater from seawater, delivering high-quality desalinated water, across different seasons. Prototype 1 demonstrated limited productivity, around 0.45 L/day.m2, while pilot-scale unit presented a productivity of approximately 6 L/day.m2 in summertime. This substantial improvement reflects the design modifications implemented in the pilot-scale unit, positioning it as a valuable option for water desalination in regions with abundant solar resources. These findings confirm the strong potential of solar desalination as a non-intrusive and effective solution and lays the groundwork for future advancements, focusing on maximising efficiency by exploring innovative materials to enhance solar energy absorption and optimizing operational conditions.eng
dc.description.sponsorshipCIND/CP1731/CT0002
dc.identifier.doi10.1016/j.desal.2024.118421
dc.identifier.issn0011-9164
dc.identifier.urihttp://hdl.handle.net/10400.1/26800
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationOvercoming existent barriers to support blue economy growth
dc.relationCentre for Marine and Environmental Research (CIMA)
dc.relation.ispartofDesalination
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSolar desalination
dc.subjectFreshwater productivity
dc.subjectWater quality assessment
dc.subjectSustainable water management
dc.subjectSolar radiation
dc.titleEnhancing efficiency in solar non-intrusive desalination: solar still prototype optimization in Southwest Europeeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleOvercoming existent barriers to support blue economy growth
oaire.awardTitleCentre for Marine and Environmental Research (CIMA)
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.00994.CEECIND%2FCP1613%2FCT0001/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00350%2F2020/PT
oaire.citation.startPage118421
oaire.citation.titleDesalination
oaire.citation.volume598
oaire.fundingStreamCEEC IND 3ed
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePacheco
person.familyNameSequeira
person.familyNameGomes Moreira da Silva
person.familyNameSerrão Sousa
person.givenNameAndré
person.givenNameClaudia
person.givenNameManuela Fernanda
person.givenNameVânia
person.identifier.ciencia-id8014-35C4-8806
person.identifier.ciencia-idD814-ADE8-29F8
person.identifier.ciencia-id4A17-D88F-F5DE
person.identifier.ciencia-id3D18-B03F-52FB
person.identifier.orcid0000-0002-8340-0629
person.identifier.orcid0000-0002-3817-4511
person.identifier.orcid0000-0002-3331-8280
person.identifier.orcid0000-0002-3800-1688
person.identifier.ridC-9664-2019
person.identifier.scopus-author-id55432603300
person.identifier.scopus-author-id56770919100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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