Thermal and energy performance of roof vegetation in subtropical climate
This article presents the thermal performance of different models of green roofs applied to an office building in the city of Pelotas–RS, Brazilian Climatic Zone 2, observing the contribution of the different vegetated solutions applied to the horizontal plane, regarding the behavior of the opaque a...
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| フォーマット: | Online |
| 言語: | por |
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Universidade Estadual de Campinas
2018
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| オンライン･アクセス: | https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650882 |
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oai:ojs.periodicos.sbu.unicamp.br:article-8650882 |
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ojs |
| institution |
Universidade Estadual de Campinas |
| collection |
OJS |
| language |
por |
| format |
Online |
| author |
Fernandes, Tatiane Ballerini Ruivo, Roseana Bonotto Cunha, Eduardo Grala da Krebs, Lisandra Fachinello |
| spellingShingle |
Fernandes, Tatiane Ballerini Ruivo, Roseana Bonotto Cunha, Eduardo Grala da Krebs, Lisandra Fachinello Thermal and energy performance of roof vegetation in subtropical climate |
| author_facet |
Fernandes, Tatiane Ballerini Ruivo, Roseana Bonotto Cunha, Eduardo Grala da Krebs, Lisandra Fachinello |
| author_sort |
Fernandes, Tatiane Ballerini |
| title |
Thermal and energy performance of roof vegetation in subtropical climate |
| title_short |
Thermal and energy performance of roof vegetation in subtropical climate |
| title_full |
Thermal and energy performance of roof vegetation in subtropical climate |
| title_fullStr |
Thermal and energy performance of roof vegetation in subtropical climate |
| title_full_unstemmed |
Thermal and energy performance of roof vegetation in subtropical climate |
| title_sort |
thermal and energy performance of roof vegetation in subtropical climate |
| description |
This article presents the thermal performance of different models of green roofs applied to an office building in the city of Pelotas–RS, Brazilian Climatic Zone 2, observing the contribution of the different vegetated solutions applied to the horizontal plane, regarding the behavior of the opaque and transparent closures. The building is artificially conditioned and has 187,50 m², configuring six thermal zones, and was simulated with the software Energy Plus 8.4.0. As alternatives to the green roofs – configured in four substrate heights –, three other roof models were tested: asbestos cement with a 10 cm concrete slab – with and without thermal insulation of extruded polystyrene – and asbestos cement painted with white color. The study sought to determine which roof is more energy efficient, based on the evaluation of the energy consumption results and the analysis of the thermal flow in the building. The building with the green roof with higher substrate layer depth (50 cm) presented the best performance, with an energy consumption of 84.3 kWh/m2.year. The building with the conventional asbestos cement roof was responsible for the higher energy consumption: 103.5 kWh/m2.year. The green roofs presented better performance due to their thermal capacity and insulation capacity and due to aspects related to evapotranspiration and consequent latent heat exchanges. This work aims to contribute to a better understanding of the thermal energy performance of green roofs. |
| publisher |
Universidade Estadual de Campinas |
| publishDate |
2018 |
| url |
https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650882 |
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AT fernandestatianeballerini thermalandenergyperformanceofroofvegetationinsubtropicalclimate AT ruivoroseanabonotto thermalandenergyperformanceofroofvegetationinsubtropicalclimate AT cunhaeduardogralada thermalandenergyperformanceofroofvegetationinsubtropicalclimate AT krebslisandrafachinello thermalandenergyperformanceofroofvegetationinsubtropicalclimate AT fernandestatianeballerini desempenhotermoenergeticodecoberturasvegetadasemclimasubtropical AT ruivoroseanabonotto desempenhotermoenergeticodecoberturasvegetadasemclimasubtropical AT cunhaeduardogralada desempenhotermoenergeticodecoberturasvegetadasemclimasubtropical AT krebslisandrafachinello desempenhotermoenergeticodecoberturasvegetadasemclimasubtropical |
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oai:ojs.periodicos.sbu.unicamp.br:article-86508822018-12-06T09:49:58Z Thermal and energy performance of roof vegetation in subtropical climate Desempenho termoenergético de coberturas vegetadas em clima subtropical Fernandes, Tatiane Ballerini Ruivo, Roseana Bonotto Cunha, Eduardo Grala da Krebs, Lisandra Fachinello Green roofs energy efficiency thermal-energetic performance Cobertura vegetada. Eficiência energética. Desempenho termoenergético. This article presents the thermal performance of different models of green roofs applied to an office building in the city of Pelotas–RS, Brazilian Climatic Zone 2, observing the contribution of the different vegetated solutions applied to the horizontal plane, regarding the behavior of the opaque and transparent closures. The building is artificially conditioned and has 187,50 m², configuring six thermal zones, and was simulated with the software Energy Plus 8.4.0. As alternatives to the green roofs – configured in four substrate heights –, three other roof models were tested: asbestos cement with a 10 cm concrete slab – with and without thermal insulation of extruded polystyrene – and asbestos cement painted with white color. The study sought to determine which roof is more energy efficient, based on the evaluation of the energy consumption results and the analysis of the thermal flow in the building. The building with the green roof with higher substrate layer depth (50 cm) presented the best performance, with an energy consumption of 84.3 kWh/m2.year. The building with the conventional asbestos cement roof was responsible for the higher energy consumption: 103.5 kWh/m2.year. The green roofs presented better performance due to their thermal capacity and insulation capacity and due to aspects related to evapotranspiration and consequent latent heat exchanges. This work aims to contribute to a better understanding of the thermal energy performance of green roofs. Este artigo apresenta o desempenho térmico de diferentes coberturas vegetadas aplicadas em um edifício de escritórios na cidade de Pelotas-RS, Zona Bioclimática Brasileira 2, observando, a partir do comportamento dos fechamentos opacos e transparentes, a contribuição das diferentes soluções vegetadas para o plano horizontal. O edifício condicionado artificialmente possui 187,50 m², configurando seis zonas térmicas, e foi simulado no software Energy Plus 8.4.0. Como alternativas às coberturas vegetadas – configuradas em quatro alturas de substrato – foram utilizados outros três modelos de cobertura: fibrocimento com laje de 10 cm em concreto – com e sem isolamento térmico de poliestireno extrudado – e fibrocimento com superfície externa pintada de branco. O estudo buscou determinar qual dessas coberturas é a mais eficiente energeticamente, através da avaliação dos resultados do consumo de energia e da análise do fluxo térmico no edifício. A cobertura vegetada de maior espessura de substrato (50 cm) apresentou melhor resultado, com consumo energético de 84,3 kWh/m2.ano. Já a cobertura de laje com telha de fibrocimento convencional foi responsável pelo maior dispêndio energético: 103,5 kWh/m2.ano. As coberturas vegetais apresentaram melhor desempenho que as demais em função das elevadas capacidade e resistência térmica e dos aspectos voltados a evapotranspiração e consequentes trocas de calor latente. Este trabalho almeja contribuir no melhor entendimento do desempenho termoenergético das coberturas vegetadas. Universidade Estadual de Campinas 2018-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Experimental research. Computer simulation. Pesquisa experimental - simulação computacional application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650882 10.20396/parc.v9i4.8650882 PARC Pesquisa em Arquitetura e Construção; Vol. 9 No. 4 (2018): O desempenho em foco; 262-275 PARC Pesquisa em Arquitetura e Construção; Vol. 9 Núm. 4 (2018): O desempenho em foco; 262-275 PARC Pesquisa em Arquitetura e Construção; v. 9 n. 4 (2018): O desempenho em foco; 262-275 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650882/18824 Copyright (c) 2018 PARC Pesquisa em Arquitetura e Construção |