Redução da carga térmica de radiação, fornecida pelo sombreamento da Ocotea odorifera (Sassafrás) comparado com um galpão agrícola comum.

Abstract

An effective way to help the animal maintain its body heat in a tropical climate is to proportionate some control over the thermal radiation. The use of natural shading as a manner to reduce the thermal radiant charger, becomes a important fact from a bioclimatic and economic point of view. It was studied in this research the reduction of thermal charges by comparing the shade of a arboreal species called Ocotea odorífera (Sassafrás), a shed shed covered with clay tile and open sky radiation; the experiment was placed in Lavras-MG. The registered data for analysis were black globe temperature (TG); maximum and minimum temperature; dry bulb temperature; wet bulb temperature and wind speed. the thermal confort indexes utilized were: ITGU, CTR, THI, TE, BGHI. In the comparasion of the results the data utilized were those collected at 3:00 pm. The outline adapted was casualized block. The results showed that there was no significant difference between the natural shading and the shed covered up with clay tile, but this reduction was of approximately 9% when compared to open sky radiation.