Evaluation of recycled tiles and OSB ceiling materials in closed broiler house prototypes

• Autor(a) principal: Cravo, JCM [UNESP]
• Data de Publicação: 2009
• Outros Autores: Fiorelli, J, Lahr, FAR, Fonseca, R da [UNESP], Cruz, VC da [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S1516-635X2009000400002; http://hdl.handle.net/11449/26429
• topic: Broiler house environment; recycled tiles; thermal comfort

This study aimed at evaluating the thermal performance of a modular ceiling system for poultry houses. The reduced- and distorted-scale prototypes used ceiling modules made of reforested wood and were covered with recycled long-life package tiles. The following parameters were measured for 21 days: tile internal surface temperature (ST), globe temperature and humidity index (WBGT), and radiant heat load (RHL). Measurements were made at times of highest heat load (11:00 am, 13:00 pm, and 03:00 pm). Collected data were analyzed by R statistics software. Means were compared by multiple comparison test (Tukey) and linear regression was performed, both at 5% significance level. The results showed that the prototype with the ceiling was more efficient to reduce internal tile surface temperature; however, this was not sufficient to provide a comfortable environment for broilers during the growout. Therefore, other techniques to provide proper cooling are required in addition to the ceiling.