ANALYSIS OF THERMAL BUFFERING OF GREEN WALLS IN BUILDINGS: A CASE STUDY FOR WET SUBTROPICAL CLIMATE WITH DRY WINTER AND HOT OR TEMPERARY SUMMER
Vertical Greenery System; Green Wall; Computational simulation; Thermal damping; School buildings
The growth of human population crowding urban areas lead to temperature increase on those regions. This climate change can be traced to increase of the constructed areas, the reduction of green areas and the emission of greenhouse gases. The literature presents alternatives to reduce the temperature into buildings, among them there is the reintroduction of nature into urban areas. The development of research on this topic still vague, as the cost to do so can be an opposing factor, since the implementation of greenery urban systems tend to be expensive and demand high level of maintenance. This research aimed at assessing a Vertical Greenery System (VGS) in a building throughout computational simulation. The case study was a school building at Belo Horizonte city, from which were developed different thermal models, one as the building stands and another with the VGS. As results, the simulations with the VGS application revealed a decrease into temperature of the building rooms and these values are comparable to the state of the art of the academic literature, showing that the used method can lead into reliable results. Also, the shading effect of VGS was confirmed as a major factor to allow temperature decrease at the simulations. It is hoped that the results of this research would help the decision making related to the adoption of similar systems in order to improve the thermal characteristics of buildings.