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Comparação de vários materiais de cobertura através de índices de conforto térmico Comparison of various roof coating materials through thermal comfort indexes

date_range 1994
person
Author K.B. Sevegnani, H. Ghelfi Filho, I.J.O. da Silva
description
Abstract O comportamento térmico de diferentes materiais de cobertura foi estudado através dos índices de conforto. Para as condições de verão, estudou-se o efeito do índice de Temperatura de Globo e Umidade (ITGU) e da Carga Térmica Radiante (CTR) no interior de abrigos. As telhas de fibra transparente, alumínio e zinco foram os mais recentes materiais inseridos neste projeto. Além delas, foram estudados os comportamentos das telhas de barro, cimento amianto e térmica. Para a avaliação dos índices de conforto foram registrados: temperatura máxima e mínima, velocidade do vento, umidade relativa e temperatura de globo negro. Concluiu-se que: a telha de barro continuou sendo a mais eficiente e a telha de fibra transparente a de menor eficiência térmica e as demais apresentaram um comportamento intermediário.<br>The thermal behaviour of different roof coating materials was studied through the thermal comfort index. For summer condictions the effect of the Globe and Humidity Index (ITGU) and the Radiant Thermal Load (CTR) were used to study the interior of shelters. Fiberglass, aluminum and zinc tiles were more recently introduced in this project. Other tested materials were clay, asbestos, cement and thermal tiles. To evaluate the comfort index the following measurements were performed: maximum and minimum temperatures, wind velocity, relative humidity and "black globe" temperature. The conclusions were: clay tiles continue being the most efficient and fiberglass tiles the least thermal efficient, and other tiles had an intermediate behaviour.
article
DOI
language
Journal Scientia Agricola
description
Source DOAJ

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