Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid
Energy efficiency in buildings is related to the bioclimatic architecture, which is the adequacy of the building to the local climate. This study aimed to analyze the influence of certain architectural and construction characteristics on the electricity consumption in buildings located at Mossoró, R...
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Universidade Estadual de Campinas
2018
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Oliveira, Paolo Américo de Lunardi, Diana Gonçalves |
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Oliveira, Paolo Américo de Lunardi, Diana Gonçalves Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Oliveira, Paolo Américo de Lunardi, Diana Gonçalves |
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Oliveira, Paolo Américo de |
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Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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influence of the envelope on thermal and energy performance of institutional buildings in semi-arid |
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Energy efficiency in buildings is related to the bioclimatic architecture, which is the adequacy of the building to the local climate. This study aimed to analyze the influence of certain architectural and construction characteristics on the electricity consumption in buildings located at Mossoró, RN, whose climate is tropical semi-arid. We recorded data of thermal and geometric characteristics of the architectural elements, such as: building shape, layout and use of spaces, cardinal orientation of facades, positioning of translucent elements and thermal properties of construction systems materials. For the thermal and energy performance analysis of parameters such as thermal transmittance and absorptance of external walls and roofs, window-to-wall ratio, vertical shading angles of translucent openings and buildings cardinal orientation, the EnergyPlus program was used to simulate electricity consumption throughout the year, based on models similar to the target buildings of this study. In these buildings, due to the architectural variables tested, artificial air conditioning was the main factor responsible for the variation of annual electricity consumption, while the consumption of artificial lighting and equipment remained constant in all simulated scenarios. In addition, the bright and reflective buildings coatings, the low window-to-wall ratio and the existence of shading elements contributed to minimizing the effects of solar radiation on the buildings heating. For this diagnosis, project recommendations are proposed for a thermally efficient building’s envelope, inserted in the semi-arid tropical climate and requiring artificial air conditioning. |
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Universidade Estadual de Campinas |
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2018 |
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https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651048 |
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oai:ojs.periodicos.sbu.unicamp.br:article-86510482018-12-01T10:38:19Z Influence of the envelope on thermal and energy performance of institutional buildings in semi-arid Influência da envoltória no desempenho termoenergético de edificações institucionais no semiárido Oliveira, Paolo Américo de Lunardi, Diana Gonçalves Arquitetura bioclimática. Eficiência energética. Simulação computacional. Bioclimatic architecture. Energy efficiency. Computer simulation. Energy efficiency in buildings is related to the bioclimatic architecture, which is the adequacy of the building to the local climate. This study aimed to analyze the influence of certain architectural and construction characteristics on the electricity consumption in buildings located at Mossoró, RN, whose climate is tropical semi-arid. We recorded data of thermal and geometric characteristics of the architectural elements, such as: building shape, layout and use of spaces, cardinal orientation of facades, positioning of translucent elements and thermal properties of construction systems materials. For the thermal and energy performance analysis of parameters such as thermal transmittance and absorptance of external walls and roofs, window-to-wall ratio, vertical shading angles of translucent openings and buildings cardinal orientation, the EnergyPlus program was used to simulate electricity consumption throughout the year, based on models similar to the target buildings of this study. In these buildings, due to the architectural variables tested, artificial air conditioning was the main factor responsible for the variation of annual electricity consumption, while the consumption of artificial lighting and equipment remained constant in all simulated scenarios. In addition, the bright and reflective buildings coatings, the low window-to-wall ratio and the existence of shading elements contributed to minimizing the effects of solar radiation on the buildings heating. For this diagnosis, project recommendations are proposed for a thermally efficient building’s envelope, inserted in the semi-arid tropical climate and requiring artificial air conditioning. A eficiência energética em edificações está relacionada à arquitetura bioclimática, que é a adequação da edificação ao clima local. Este estudo objetivou analisar a influência de determinadas características arquitetônicas e construtivas no consumo de eletricidade de edificações situadas em Mossoró, RN, cujo clima é tropical semiárido. Foram coletados dados relativos às características térmicas e geométricas dos elementos arquitetônicos, como: formato da edificação, disposição e uso dos ambientes, orientação cardeal das fachadas, posicionamento de elementos transparentes e propriedades térmicas dos materiais que compõem os sistemas construtivos. Para análise do desempenho termoenergético de parâmetros como transmitância e absortância térmica de paredes externas e da cobertura, percentual de aberturas nas fachadas, ângulos verticais de sombreamento de elementos translúcidos e orientação cardeal das edificações, utilizou-se o programa EnergyPlus, que simula o consumo de eletricidade predial ao longo do ano, baseado em modelos similares às edificações deste estudo. Nestas edificações, em função das variáveis arquitetônicas testadas, o condicionamento artificial de ar foi o principal responsável pela variação de consumo anual de eletricidade, enquanto que o consumo de sistemas de iluminação artificial e de equipamentos permaneceu constante em todos os cenários simulados. Adicionalmente, os revestimentos claros e refletivos das edificações, o baixo percentual de áreas envidraçadas nas fachadas e a existência de elementos de sombreamento contribuíram para minimizar os efeitos da radiação solar no aquecimento das edificações. A partir deste diagnóstico, são propostas recomendações projetuais para envoltória de edificações termicamente eficientes, inseridas no clima tropical semiárido e que tenham a necessidade de condicionamento artificial de ar. Universidade Estadual de Campinas 2018-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Computer simulation Simulação computacional application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651048 10.20396/parc.v9i4.8651048 PARC Pesquisa em Arquitetura e Construção; Vol. 9 No. 4 (2018): O desempenho em foco; 276-289 PARC Pesquisa em Arquitetura e Construção; Vol. 9 Núm. 4 (2018): O desempenho em foco; 276-289 PARC Pesquisa em Arquitetura e Construção; v. 9 n. 4 (2018): O desempenho em foco; 276-289 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8651048/18826 Copyright (c) 2018 PARC Pesquisa em Arquitetura e Construção |