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Article: Predicting and understanding temporal 3D exterior surface temperature distribution in an ideal courtyard

TitlePredicting and understanding temporal 3D exterior surface temperature distribution in an ideal courtyard
Authors
KeywordsCourtyard
Micro Scale Heat Island
Thermal Mass
Thermal Radiation
Urban Thermal Environment
Issue Date2012
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenv
Citation
Building And Environment, 2012, v. 57, p. 38-48 How to Cite?
Abstract
Micro-scale heat island phenomenon refers to the temperature rise of a micro-scale built area, e.g. a street, a square and/or even an urban district above the ambient air over the area. This paper presents a simple temporal 3D air and surface temperature model for an ideal courtyard, which is a semi-enclosed open space surrounded by buildings. The prediction model includes the transient heat conduction in the ground and through the buildings walls, the heat removal/addition by courtyard ventilation, and detailed solar radiation and thermal radiation exchanges between surfaces. The air temperature in the courtyard and its surface temperature distribution can be analyzed minute by minute within a day or during a longer period if the temporal ambient air temperature and weather data are given. We simulated a courtyard located in Beijing. The solar radiation and the urban structures are found to be the most important factors in determining the courtyard thermal environment during both summer and winter. The thermal properties of the building walls also play a significant role. The results are revealing in developing effective methods for mitigating or managing micro heat island, and control thermal environment in a courtyard. © 2012 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/157197
ISSN
2013 Impact Factor: 2.700
2013 SCImago Journal Rankings: 1.634
ISI Accession Number ID

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorYang, Xen_US
dc.contributor.authorLi, Yen_US
dc.contributor.authorYang, Len_US
dc.date.accessioned2012-08-08T08:45:46Z-
dc.date.available2012-08-08T08:45:46Z-
dc.date.issued2012en_US
dc.identifier.citationBuilding And Environment, 2012, v. 57, p. 38-48en_US
dc.identifier.issn0360-1323en_US
dc.identifier.urihttp://hdl.handle.net/10722/157197-
dc.description.abstractMicro-scale heat island phenomenon refers to the temperature rise of a micro-scale built area, e.g. a street, a square and/or even an urban district above the ambient air over the area. This paper presents a simple temporal 3D air and surface temperature model for an ideal courtyard, which is a semi-enclosed open space surrounded by buildings. The prediction model includes the transient heat conduction in the ground and through the buildings walls, the heat removal/addition by courtyard ventilation, and detailed solar radiation and thermal radiation exchanges between surfaces. The air temperature in the courtyard and its surface temperature distribution can be analyzed minute by minute within a day or during a longer period if the temporal ambient air temperature and weather data are given. We simulated a courtyard located in Beijing. The solar radiation and the urban structures are found to be the most important factors in determining the courtyard thermal environment during both summer and winter. The thermal properties of the building walls also play a significant role. The results are revealing in developing effective methods for mitigating or managing micro heat island, and control thermal environment in a courtyard. © 2012 Elsevier Ltd.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenven_US
dc.relation.ispartofBuilding and Environmenten_US
dc.subjectCourtyarden_US
dc.subjectMicro Scale Heat Islanden_US
dc.subjectThermal Massen_US
dc.subjectThermal Radiationen_US
dc.subjectUrban Thermal Environmenten_US
dc.titlePredicting and understanding temporal 3D exterior surface temperature distribution in an ideal courtyarden_US
dc.typeArticleen_US
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_US
dc.identifier.authorityLi, Y=rp00151en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.buildenv.2012.03.022en_US
dc.identifier.scopuseid_2-s2.0-84860996614en_US
dc.identifier.hkuros224060-
dc.identifier.volume57en_US
dc.identifier.spage38en_US
dc.identifier.epage48en_US
dc.identifier.isiWOS:000307618900005-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYang, X=55216722000en_US
dc.identifier.scopusauthoridLi, Y=7502094052en_US
dc.identifier.scopusauthoridYang, L=13806737800en_US
dc.identifier.citeulike10682268-

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