Tesis
Efeitos do uso de telhados vegetados em ilhas de calor urbanas com simulação pelo software ENVI-Met
Fecha
2013-12-18Registro en:
ROSSETI, Karyna de Andrade Carvalho. Efeitos do uso de telhados vegetados em ilhas de calor urbanas com simulação pelo software ENVI-Met. 2013. 253 f. Tese (Doutorado em Física Ambiental) - Universidade Federal de Mato Grosso, Instituto de Física, Cuiabá, 2013.
Autor
Nogueira, Marta Cristina de Jesus Albuquerque
http://lattes.cnpq.br/8280601583280522
Nogueira, Marta Cristina de Jesus Albuquerque
531.387.751-87
http://lattes.cnpq.br/8280601583280522
Musis, Carlo Ralph de
545.383.511-72
http://lattes.cnpq.br/2229878954372934
531.387.751-87
Biudes, Marcelo Sacardi
893.219.011-91
http://lattes.cnpq.br/7273935697798004
Leão, Marlon
695.731.821-49
http://lattes.cnpq.br/8029228126244943
Leão, Erika Fernanda Toledo Borges
697.999.111-68
http://lattes.cnpq.br/8535093780127446
Institución
Resumen
Urbanization, by modification of the natural landscape, alters the aerodynamic and radiative
properties of the surface, in the thermal properties of the substrate and in the hydraulic
properties of the surface and the soil, modifying thus the thermal and radiometric properties
of the urban atmosphere. The effect of vegetation on urban climate is already investigated
some time ago and its benefits can be observed not only in the vegetated area, but also in its
surroundings. A possible solution for the incorporation of vegetation within the urban
context is the transformation of traditional roofs of buildings in green roofs. The aim of this
study is to evaluate green roof’s effects in a urban heat island with simulation at ENVI-Met
software in the city of Cuiabá, MT. The development methodology of this study involves
two main phases: Survey (microclimatic and spatial) and Simulation. The microclimatic
survey was carried out through a fixed micrometeorological station and a mobile transect, in
the periods of the january to march of 2013 (hot humid ) and the july to september of 2013
(hot dry). The spatial survey was conducted by aerial photogrammetry in the
photogrammetric station digital E-Photo, complemented by in situ observations. The
simulation was developed in the software ENVI-Met, for the two periods of the year, in four
different scenarios, being a real scenario, with the incorporation of vegetated roof in 10% of
roofs, another 50% and another with 100%. In general, the results confirmed the validity of
the model ENVI-Met as a tool of microclimate forecast for the city of Cuiabá, MT. All
scenarios cause interference in local microclimate, which validates the vegetated roof as a
strategy for minimizing the effects of the urban heat island, mainly in the region above the
rooftops and the level of backyards. The most significant results were obtained in the
scenario with 100% of green roof, assuming decreasing of air temperature of up to 1.56 °C
and an increase in relative humidity of up to 4.80%. The scenarios with green roof do not
interfere on thermal comfort at ground level. These results highlight the importance and
benefits of green roof as a passive strategy of both thermal conditioning of buildings as
urban space, reinforcing the importance of bioclimatic urban planning to ensure the quality
of life of its inhabitants.