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| Author(s): |
Carolina dos Santos Gusson
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Arquitetura e Urbanismo (FAU/SBI) |
| Defense date: | 2014-05-26 |
| Examining board members: |
Denise Helena Silva Duarte;
Eleonora Sad de Assis;
Karin Regina de Casas Castro Marins
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| Advisor: | Denise Helena Silva Duarte |
| Abstract | |
The subject of this research is the relation between the built density and urban microclimates. The objective is to quantify the effect of built density on urban microclimates, through the construction of different parametric scenarios, considering the possible blocks occupation patterns, with different buildings typologies: the perimeter block, the blade building, and the tower building for the city of São Paulo. The method is inductive, through field data measurement of the land use and local microclimate conditions in two most densely populated districts in São Paulo city, but with different built densities: Brasilândia with a plot ratio lower than 1, and Bela Vista, with a plot ratio greater than 3.5; and deductive, by comparisons between field measurements and computer simulations with the ENVI-met 4.0 (preview) model, which were used to calibrate the model between measured data and simulated data, aiming at higher reliability of the results. After that, five parametric scenarios (blades with 3 different orientations, tower, and perimeter) were explored, each with nine blocks, while maintaining approximately the same plot ratio (around 3.7) and the same population density (around 1500 inhabitants/ha) in all cases studied. Parametric simulations for three consecutive days showed that, among the simulated scenarios, the tower scenario presented, consistently, a difference of about 0.6 °C lower for air temperature, at 1.5 m from the floor, compared the perimeter scenario for the center court at the time, 15h, of highest air temperature, and about 1.4 °C less in the nighttime air temperature. The other blade scenarios showed intermediate results between the previous two, showing that, keeping the same built density, the scenarios have different behaviors. Among the cases studied, the tower scenario showed the lowest air temperatures during day and night periods, probably due to mutual shading among buildings, which contributes to less heating of the surfaces and thus less heating of the air in the immediate surroundings. (AU) | |
| FAPESP's process: | 11/05489-2 - Effect of built density on the urban microclimate: construction of different possible scenarios and their effects on energy balance in urban areas |
| Grantee: | Carolina dos Santos Gusson |
| Support Opportunities: | Scholarships in Brazil - Master |