Eficiência térmica de telhas onduladas de fibrocimento aplicadas em abrigos individuais para bezerros expostos ao sol e à sombra

Fiorelli, Juliano; Schmidt, René; Kawabata, Celso Yoji; Oliveira, Celso Eduardo Lins de; Rossignolo, João Adriano

doi:10.1590/s0103-84782012000100011

Cited by 15 publications

(9 citation statements)

References 4 publications

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“…It was verified that the inner surface temperature (IST) of both roofs followed the same pattern (Table 2), with the lowest values in the early hours of the day, reaching the maximum value between 12h and 14h (period with maximum solar radiation), and then decreasing at the end of the day. Similar behavior was observed by Fiorelli et al (2012), who have found the higher temperature at 14h. Almeida and Passini (2013), studied different types of roofing and also checked an increase in the air temperature, reaching the peak at 14h and decreasing thereafter.…”

Section: Resultssupporting

confidence: 88%

Thermal behavior of metallic and fiber cement tiles with simple and double layers

Almeida

Souza

Furlan

et al. 2018

JABB

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This research was conducted aiming to evaluate the thermal behavior of metallic and fiber cement tiles installed in simple and double layers. The experiment was performed on prototypes of roofing in single layers and double-spaced from 1.0 to 5.0 cm. It was used temperature sensors, installed on the inner surface of the roofing and in the center of the model for data collection. Data were analyzed using Skott-Knott test, considering the time of day, and roof type. The results showed that the spacing between tiles has an important influence on temperature gradient inside the prototype, been observed that double-spaced roofs, with 5.0 cm, showed the best results for metallic and fiber cement tiles.

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Section: Resultssupporting

confidence: 88%

Thermal behavior of metallic and fiber cement tiles with simple and double layers

Almeida

Souza

Furlan

et al. 2018

JABB

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“…A necessidade de projetar instalações adaptadas, com características construtivas diferenciadas que garantam o conforto e permitam, ao animal, melhor desempenho produtivo (Fiorelli et al, 2012). Desta forma, as coberturas verdes, além de contribuir para a redução dos índices de conforto apresentam outras vantagens, como a redução do escoamento superficial (Stovin et al, 2012), da poluição do ar (Gartland, 2010), dos ruídos (Renterghem & Botteldooren, 2009) e da transmissão de energia para o interior da construção.…”

Section: Resultsunclassified

Condicionamento térmico primário de instalações rurais por meio de diferentes tipos de cobertura

Carneiro

Guiselini

Pandorfi

et al. 2015

Rev. bras. eng. agríc. ambient.

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RESUMOObjetivou-se, com este trabalho, avaliar o conforto térmico proporcionado por diferentes tipos de cobertura, com base nas análises térmicas e nos índices de conforto térmico humano e zootécnico. A pesquisa foi realizada no período de 20 de março a 29 de maio de 2014, na UFRPE, no município de Recife, PE. Os tipos de cobertura analisados foram: telha de fibrocimento (Tfib), telha reciclada (Trec), telhado verde, grama, Zoysia japonica (Tgra) e telhado verde, amendoim, Arachis repens (Tame), com quatro repetições cada um; as variáveis meteorológicas foram registradas interna e externamente aos modelos. A análise térmica das coberturas foi realizada por meio de imagens termográficas e o conforto térmico das instalações foi obtido por meio dos índices de conforto, carga térmica radiante, índice de temperatura de globo negro e umidade, índice de conforto humano, índice de temperatura e umidade e temperatura efetiva. Os telhados verdes (Tame; Tgra) reduziram a temperatura da superfície interna das coberturas (5,3 e 4,4 ºC), promoveram maior atenuação da temperatura dos ambientes (1,37 e 1,35 ºC) e, consequentemente, promoveram também maior conforto térmico, em comparação com a Tfib e Trec.

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“…Furthermore, these buildings are planned to be economically viable and healthy places to live and work (GHAFFARIANHOSEINI et al, 2013). This concept can also be applied to rural buildings where environmental comfort requirements are essential to ensure a higher animal welfare (FIORELLI et al, 2012) and, consequently, a greater quantity and quality of production of meat.…”

Section: Introductionmentioning

confidence: 99%

Characterization and treatment of sisal fiber residues for cement-based composite application

Lima¹,

Santos²,

Ferreira³

et al. 2014

Eng. Agríc.

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ABSTRACT:Sisal fiber is an important agricultural product used in the manufacture of ropes, rugs and also as a reinforcement of polymeric or cement-based composites. However, during the fiber production process a large amount of residues is generated which currently have a low potential for commercial use. The aim of this study is to characterize the agricultural residues by the production and improvement of sisal fiber, called field bush and refugo and verify the potentiality of their use in the reinforcement of cement-based composites. The residues were treated with wet-dry cycles and evaluated using tensile testing of fibers, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Compatibility with the cement-based matrix was evaluated through the fiber pull-out test and flexural test in composites reinforced with 2 % of sisal residues. The results indicate that the use of treated residue allows the production of composites with good mechanical properties that are superior to the traditional composites reinforced with natural sisal fibers.

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Eficiência térmica de telhas onduladas de fibrocimento aplicadas em abrigos individuais para bezerros expostos ao sol e à sombra

Abstract: Eficiência térmica de telhas onduladas de fibrocimento aplicadas em abrigos individuais para bezerros expostos ao sol e à sombra

Cited by 15 publications

References 4 publications

Thermal behavior of metallic and fiber cement tiles with simple and double layers

Thermal behavior of metallic and fiber cement tiles with simple and double layers

Condicionamento térmico primário de instalações rurais por meio de diferentes tipos de cobertura

Characterization and treatment of sisal fiber residues for cement-based composite application

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