The evapotranspiration process in green roofs: a review

dc.contributor.authorCascone, Stefano
dc.contributor.authorComa Arpón, Julià
dc.contributor.authorGagliano, Antonio
dc.contributor.authorPérez Luque, Gabriel
dc.date.accessioned2019-01-15T14:53:35Z
dc.date.available2021-01-01T23:12:45Z
dc.date.issued2019
dc.description.abstractPrevious research has shown that most of the green roof benefits are related to the cooling effect. In the literature available, however, it is still not clear how and how much the evapotranspiration affects the performance of a green roof. In order to fill the gap in this research topic, this study carries out a review on the cooling effect due to the evapotranspiration process of green roofs. First of all, an overview of the evapotranspiration phenomenon in green roofs, as well as the equipment and methods used for its measurement are presented. Then, the main experimental results available in literature, the physical-mathematical models and the dynamic simulation software used for the evaluation of the latent heat flux are also analysed and discussed among the available literature. Moreover, this review proposes a classification of the results carried out by previous studies as function of the main parameters affecting the evapotranspiration process (e.g. volumetric water content, stomatal resistance, Leaf Area Index, solar radiation, wind velocity, relative humidity, soil thickness, and substrate composition). Additionally, a sensitivity analysis of the results obtained from the literature allowed underlining the correlation among the main factors affecting the evapotranspiration. Finally, a vision of the world area where green roof studies were performed is provided. From the results, it is possible to emphasize that most of the studies that evaluated the evapotranspiration used high precision load cells. Furthermore, all the heat transfer models of green roofs considered in this review took into account the latent heat flux due to evaporation of water from the substrate and plants transpiration, however, only few of them were experimentally validated.ca_ES
dc.description.sponsorshipThis work is partially funded by the Spanish governmentENE2015-64117-C5-1-R (MINECO/FEDER). The authors would like to thank the Catalan Government for the quality accreditation given to their research group (2017 SGR 1537). GREiA is certified agent TECNIO in the category of technology developers by the Government of Catalonia. Julià Coma would like to thank Ministerio de Economia y Competitividad de España for the Grant Juan de la Cierva, FJCI-2016-30345. This research is also funded by “the Notice 5/2016 for financing the Ph.D. regional grant in Sicily” as part of the Operational Programme of European Social Funding 2014–2020 (PO FSE 2014–2020).ca_ES
dc.identifier.doihttps://doi.org/10.1016/j.buildenv.2018.10.024
dc.identifier.idgrec027991
dc.identifier.issn0360-1323
dc.identifier.urihttp://hdl.handle.net/10459.1/65514
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-1-R/ES/IDENTIFICACION DE BARRERAS Y OPORTUNIDADES SOSTENIBLES EN LOS MATERIALES Y APLICACIONES DEL ALMACENAMIENTO DE ENERGIA TERMICA/ca_ES
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.buildenv.2018.10.024ca_ES
dc.relation.ispartofBuilding and environment, 2019, vol. 147, p. 337-355ca_ES
dc.rightscc-by-nc-nd (c) Elsevier, 2019ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectEvaporationca_ES
dc.subjectTranspirationca_ES
dc.subjectLatent heat fluxca_ES
dc.subjectCooling effectca_ES
dc.titleThe evapotranspiration process in green roofs: a reviewca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersionca_ES
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