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Evaporation from porous building materials and its cooling potential

2015-08Artigo científico Acesso aberto
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dc.contributor.authorGonçalves, Teresa Diaz
dc.contributor.authorBrito, Vânia
dc.contributor.authorVidigal, Filipa
dc.contributor.authorMatias, Luís
dc.contributor.authorFaria, Paulina
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.pblASCE - American Society of Civil Engineers
dc.date.accessioned2017-05-30T13:57:26Z
dc.date.available2017-05-30T13:57:26Z
dc.date.issued2015-08
dc.descriptionPortuguese Foundation for Science and Technology (FCT) under the research project DRYMASS (PTDC/ECM/100553/2008)
dc.description.abstractEvaporative cooling is a traditional strategy to improve summer comfort, which has gained renewed relevance in the context of the 6 transition to a greener economy. Here, the potential for evaporative cooling of two common porous building materials, natural stone and 7 ceramic brick, was evaluated. The work has relevance also to the protection of built heritage becauseevaporation underlies the problems of 8 dampness and salt crystallization, which are so harmful and frequent in this heritage. It was observed that the drying rate of the materials is, in 9 some cases, higher than the evaporation rate of a free water surface. Surface area measurements by a three-dimensional optical technique 10 suggested, as probable cause of this behavior, that surface irregularity gives rise to a large effective surface of evaporation in the material. 11 Surface temperature measurements by infrared were performed afterward during evaporation experiments outside during a hot summer day in 12 Lisbon. Their results indicate that ordinary building materials can be very efficient evaporative media and, thus, may help in achieving higher 13 energy efficiency while maintaining a simultaneous constructive or architectural function.en
dc.description.versionproof
dc.description.versionpublished
dc.format.extent1653319
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0001174
dc.identifier.issn0899-1561
dc.identifier.otherPURE: 394363
dc.identifier.otherPURE UUID: 6f31611c-7006-4063-920b-e81581104115
dc.identifier.otherresearchoutputwizard: 45723
dc.identifier.otherScopus: 84938629717
dc.identifier.otherresearchoutputwizard: 51555
dc.identifier.otherWOS: 000358179300010
dc.identifier.otherORCID: /0000-0003-0372-949X/work/42835554
dc.identifier.urihttp://hdl.handle.net/10362/20794
dc.language.isoeng
dc.peerreviewedyes
dc.subjectPorous buildig material
dc.subjectEvaporative effect
dc.subjectCooling potential
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleEvaporation from porous building materials and its cooling potentialen
dc.typejournal article
degois.publication.issue8
degois.publication.titleJournal of Materials in Civil Engineering
degois.publication.volume27
dspace.entity.typePublication
rcaap.rightsopenAccess

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