AVALIAÇÃO DO DESEMPENHO TÉRMICO DE TELHADO VERDE NA CIDADE DE ARACAJU-SE
Keywords:
thermal performance, green roof, computational simulationAbstract
With an increase in the urbanization of the cities, the natural vegetation cover of the soil was suppressed to give space to new buildings. These buildings, especially those in tropical regions, are subjected to elevated solar radiation, leading to higher temperatures indoors and increasing the demand for air-conditioning systems. In the recent years, the urge in environmental awareness fueled the search for less harmful solutions in civil construction, such as the use of green roofs. Green roofs have countless advantages, like improved thermal performance of the building and higher insulation of the roof. Keeping that in mind, the overall goal of this study was to compare the thermal performance of a green roof with the performance of a ceramic roof tile, both subjected to Aracaju - SE weather conditions, through computational simulation. For that purpose, it was created a model in Sketchup™ and subsequently used to perform thermal simulations with two kinds of cover in EnergyPlus™. Simulation technique adopted the Sensibility Analyses method, with alteration of kind of roof (ceramic roof tile and green roof) and the kind of room occupation in each simulation. In general, internal temperatures of the simulated model with green roof were lower than temperatures of the model with ceramic roof tile, confirming the improvement of thermal performance because of use of green roof.
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