RESUMO:Objetivou-se avaliar o uso de diferentes tipos de coberturas, em modelos reduzidos de galpões avícolas, a partir da análise dos índices de conforto térmico, em experimento conduzido na região Central do Brasil. Foram utilizados 03 modelos de galpões avícolas (em escala reduzida 1:10), sendo que em cada modelo foi utilizado um material de cobertura diferente, a saber: telha cerâmica, telha alumínio e telha de fibra vegetal asfáltica (reciclada). Para a análise deste estudo, foram coletados dados de temperatura do bulbo seco (Tbs), temperatura do globo negro (Tgn), umidade relativa do ar (UR) e velocidade do vento (vv), durante 9 dias. A caracterização do ambiente interno foi feita pelo Índice de Temperatura de Globo Negro e Umidade (ITGU), Carga Térmica Radiante (CTR) e efetividade (ε), sendo observado valores médios de ITGU de 75,65 e CTR de 453,09 W.m -2 para a telha cerâmica. Os resultados permitem concluir que para a região de estudo, a utilização de telha de cerâmica, quando comparada às demais telhas testadas, propicia melhores condições de conforto térmico. PALAVRAS-CHAVE:Ambiente térmico, avicultura, telhado. THERMAL CONFORT OF REDUCED SCALE MODELS OF POULTRY SHEDS WITH DIFFERENT TYPES OF ROOFINGABSTRACT: The goal of this work was to evaluate the thermal comfort index of reduced scale models (1:10) of poultry houses with different roofing materials. This study was conducted in Central Brazil. Three models of poultry sheds were used with different cover material: ceramic tile, aluminum tile and asphalt, and paper tile (recycled). To analyze the models, information about the dry bulb temperature (Tbs), black globe temperature (BGT), relative humidity (RH) and wind speed (vv), were collected during nine days. The thermal comfort was evaluated and classified through black-globe humidity index (BGHI), thermal heat load (THL), and effectiveness (ε). Average values of 75.65 and 453.09 W.m -2 for BGHI and THL, respectly, were observed in ceramic tile roofing. The results showed that the ceramic tiles provide better thermal environment in reduced scale models of poultry houses.
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