Sensitivity of Radiative and Thermal Properties of Building Material in the Urban Atmosphere

Marcos Vinicius Bueno de Morais, Viviana Vanesa Urbina Guerrero, Edmilson Dias de Freitas, Edson R. Marciotto, Hugo Valdés, Christian Correa, Roberto Agredano and Ismael Vera-Puerto
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Marcos Vinicius Bueno de Morais: Departamento de Obras Civiles, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Av. San Miguel 3605, Talca 3480112, Chile
Viviana Vanesa Urbina Guerrero: Atmospheric Extreme Events Laboratory, Federal Technology University—Paraná, Av. Pioneiros 3131, Londrina 86036-370, Paraná, Brazil
Edmilson Dias de Freitas: Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo 05508-090, Brazil
Edson R. Marciotto: Department of Physics, Federal University of Santa Catarina, Bairro da Trindade-Florianópolis, Santa Catarina 88040-900, Brazil
Hugo Valdés: Centro de Innovación en Ingeniería Aplicada, Departamento de Computación e Industrias, Universidad Católica del Maule 3605, Talca 3480112, Chile
Christian Correa: Centro de Innovación en Ingeniería Aplicada, Departamento de Obras Civiles, Universidad Católica del Maule 3605, Talca 3480112, Chile
Roberto Agredano: Centro de Innovación en Ingeniería Aplicada, Departamento de Obras Civiles, Universidad Católica del Maule 3605, Talca 3480112, Chile
Ismael Vera-Puerto: Centro de Innovación en Ingeniería Aplicada, Departamento de Obras Civiles, Universidad Católica del Maule 3605, Talca 3480112, Chile

Sustainability, 2019, vol. 11, issue 23, 1-15

Abstract: In the context of the impact of urbanization on climate change, this work aims to evaluate the sensitivity of the thermal and radiative properties of building surfaces in urban areas to the urban heat island intensity, a local scale meteorological phenomenon. For this, variations of albedo values, emissivity, thermal conductivity and heat capacity of roofs, streets and walls were simulated through an urban scheme coupled with the BRAMS mesoscale atmospheric model for the metropolitan area of São Paulo, considering two main urban types. The simulations show that, in general, looking for cold surface situations, the change of building material can contribute to a reduction of up to 3 °C for São Paulo. In addition, the role of orientation and the typological characteristics of constructions should be taken into account. In this sense, it is expected that this work guides civil engineers and builders to search for new materials in order to reduce the effects of urbanization on the local climate.

Keywords: radiative and thermal properties; urban climate; Urban Heat Island; sustainable construction (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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