Modelagem numérica para análise térmica em painéis de vedação

Abstract

One of the challenges of civil construction is to provide a comfortable environmental, safe and nice aesthetically to user, that being capable of satisfying the necessity of the same. And connected to this, it is the different studies in search of methods and materials that favor the better comfort in the buildings. To build, the Engineer should to attend the different legal parameters and connected parameters to quality and to well-being of the user, attached to this, it is the thermal comfort, that can be defined as being a mental condition that express to satisfaction with the environmental that the close. Being thermal comfort means that the individual in conditions of normal clothes does not feel neither cold nor heat. Thus, this study has as objective to evaluate the thermal behavior of different panels of seal applied in civil construction work, through of numerical modeling using the software ABAQUS/CAE. For analyzing, it were choose 3 types of seal panels, being the panel in massive concrete of thickness of 10 cm, panel in conventional masonry of bricks 8 holes with thickness of 14 cm and for last was analyzed the panel of seal in apparent solid bricks with total thickness of wall in 14 cm. Thus, the results obtained describe as the heat flow go through the panel in analyze. Being thus, it haves that the panel in conventional masonry of bricks of 8 holes was the model that kept more distant of the limit value of thermal transmittance, where the calculated value corresponds to 57,68% of the limit of standard, this it occurred due to empty in the interior of the masonry (the holes) where the same are filled with air, of this form enables a less passage of heat. Altogether, it concludes that three models analyzed in this study attended the parameters of acceptance of NBR 15220-3:2005, where to calculate the thermal transmittance of each panel, it obtain that all are below of maximum limit of acceptance of the values. And that the panel of massive concrete of the class C25 it is next of the parameter that limits the use; however, still attend the strategy of the bioclimatic zoning 8, to which the city of Caraúbas is characterized.