Study of the thermal performance of buried and semi-buried test cells

A vernacular housing alternative widely used by indigenous groups in southern Brazil is based on burying the more significant part of the dwellings and covering it with a vegetated roof. The present study aims to verify the thermal performance of buried and semi-buried test cells when compared to a...

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التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Biasi, Juliana Aparecida, Krüger, Eduardo Leite
التنسيق: Online
اللغة:por
منشور في: Universidade Estadual de Campinas 2019
الوصول للمادة أونلاين:https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8653908
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spelling oai:ojs.periodicos.sbu.unicamp.br:article-86539082020-03-13T17:53:51Z Study of the thermal performance of buried and semi-buried test cells Estudo do desempenho térmico de células-teste enterrada e semienterrada Biasi, Juliana Aparecida Krüger, Eduardo Leite Inércia térmica. Construção subterrânea Construção enterrada. Thermal inertia Underground construction Buried construction. A vernacular housing alternative widely used by indigenous groups in southern Brazil is based on burying the more significant part of the dwellings and covering it with a vegetated roof. The present study aims to verify the thermal performance of buried and semi-buried test cells when compared to a ground control cell as a bioclimatic strategy. The method is based on the comparison of temperature variations measured inside test cells concerning external and soil temperature measured in Curitiba, PR, during the winter period. The test cells were made on a reduced scale, all with the same dimensions and material specifications. The performance of each test cell was evaluated through the analysis of thermal fluctuations, time lag, differences in temperature, and amplitudes of surface sensors and comfort levels. Data analysis revealed that the buried test cell presented lower thermal amplitude and longer time lag. Regarding the sum of degrees-hours outside the comfort temperature range, the buried test cell obtained the best performance during the winter period. It was also possible to verify that a greater surface area in contact with the soil increases the thermal performance. Uma alternativa construtiva vernacular dos grupos indígenas na região sul do Brasil baseava-se no enterramento da edificação com o provimento de cobertura leve. O presente estudo tem por objetivo avaliar o desempenho térmico de células-teste enterradas e semienterradas quando comparadas a uma célula controle térrea visando uma arquitetura bioclimática que utilize métodos passivos. O método é baseado na comparação das variações de temperatura medida no interior de células-teste quanto à temperatura externa e do solo medidos em Curitiba, PR, durante o período de inverno. As células testes foram confeccionadas em escala reduzida, todas com as mesmas dimensões e especificações de materiais. Para a avaliação de desempenho foram analisados a amplitude térmica, o atraso térmico, as diferenças de temperaturas e amplitudes de sensores superficiais e os índices de conforto de cada célula-teste. A análise de dados constatou que a célula-teste enterrada apresentou menor amplitude térmica e maior atraso térmico. No que tange à somatória dos graus-hora fora da faixa de temperatura de conforto, a célula-teste enterrada obteve o menor tempo em desconforto durante o período de inverno. Foi possível verificar também que quanto maior a área em contato com o solo, melhores as condições de conforto observadas. Universidade Estadual de Campinas 2019-05-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Quasi-experimental research Pesquisa quase-experimental application/pdf https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8653908 10.20396/parc.v10i0.8653908 PARC Pesquisa em Arquitetura e Construção; Vol. 10 (2019): Continuous publication; e019023 PARC Pesquisa em Arquitetura e Construção; Vol. 10 (2019): Publicação contínua; e019023 PARC Pesquisa em Arquitetura e Construção; v. 10 (2019): Publicação contínua; e019023 1980-6809 por https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8653908/20832 Brazil; 2019 Brasil; 2019 Copyright (c) 2019 PARC Pesquisa em Arquitetura e Construção
institution Universidade Estadual de Campinas
collection OJS
language por
format Online
author Biasi, Juliana Aparecida
Krüger, Eduardo Leite
spellingShingle Biasi, Juliana Aparecida
Krüger, Eduardo Leite
Study of the thermal performance of buried and semi-buried test cells
author_facet Biasi, Juliana Aparecida
Krüger, Eduardo Leite
author_sort Biasi, Juliana Aparecida
title Study of the thermal performance of buried and semi-buried test cells
title_short Study of the thermal performance of buried and semi-buried test cells
title_full Study of the thermal performance of buried and semi-buried test cells
title_fullStr Study of the thermal performance of buried and semi-buried test cells
title_full_unstemmed Study of the thermal performance of buried and semi-buried test cells
title_sort study of the thermal performance of buried and semi-buried test cells
description A vernacular housing alternative widely used by indigenous groups in southern Brazil is based on burying the more significant part of the dwellings and covering it with a vegetated roof. The present study aims to verify the thermal performance of buried and semi-buried test cells when compared to a ground control cell as a bioclimatic strategy. The method is based on the comparison of temperature variations measured inside test cells concerning external and soil temperature measured in Curitiba, PR, during the winter period. The test cells were made on a reduced scale, all with the same dimensions and material specifications. The performance of each test cell was evaluated through the analysis of thermal fluctuations, time lag, differences in temperature, and amplitudes of surface sensors and comfort levels. Data analysis revealed that the buried test cell presented lower thermal amplitude and longer time lag. Regarding the sum of degrees-hours outside the comfort temperature range, the buried test cell obtained the best performance during the winter period. It was also possible to verify that a greater surface area in contact with the soil increases the thermal performance.
publisher Universidade Estadual de Campinas
publishDate 2019
url https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8653908
work_keys_str_mv AT biasijulianaaparecida studyofthethermalperformanceofburiedandsemiburiedtestcells
AT krugereduardoleite studyofthethermalperformanceofburiedandsemiburiedtestcells
AT biasijulianaaparecida estudododesempenhotermicodecelulastesteenterradaesemienterrada
AT krugereduardoleite estudododesempenhotermicodecelulastesteenterradaesemienterrada
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