Eventos Anais de eventos
CONEM 2022
XI Congresso Nacional de Engenharia Mecânica - CONEM 2022
INFLUENCE OF URBAN ARBORIZATION ON HUMAN THERMAL COMFORT: CASE STUDY FOR A UNIVERSITY CAMPUS
Submission Author:
Higor Medeiros Licá , MA , Brazil
Co-Authors:
Gabriel Felipe Silva, Higor Medeiros Licá, João Vitor Rego Muniz, Glauber Cruz
Presenter: Gabriel Felipe Silva
doi://10.26678/ABCM.CONEM2022.CON22-0381
Abstract
Urbanization as a phenomenon of spatial change generates different local changes in the climate, which are characterized by an increase in surface and atmospheric temperatures (environmental radiation effect). Studies showed that this effect is minimized by cities arborization, since it increases the relative moisture and decreases the surface temperatures. In this context, this study aimed to compare the surface thermal dynamics of an arborized area and other non-arborized area in the Dom Delgado University City of the Federal University of Maranhão (UFMA) - São Luís (MA). The methodology employed was divided into two stages: the first refers to the measurement of temperatures, which were performed at previously determined fixed points, weekly for three months and at the same time (01:00 pm) and second stage consisted of the collected data treatment, where the average temperatures in each chosen point were analyzed, taking into account the different construction materials (wood, concrete, asphalt, red brick, ground, and acrylic paint) found at the specified location. In addition to the surface heat flow rate was calculated by radiation heat transfer. The results showed the concrete as one of the materials with the highest average surface temperature (≈ 53.54 ± 2.6 ºC), slightly higher than asphalt (≈ 52.37 ± 2.4 ºC) and more significant than the temperature in the arborized area, both at the reference height of the ground (≈ 36.53 ± 1.3 ºC) and at average heights, approximately 1.50 m (≈ 34.88 ± 1.1 ºC). For the thermal heat flow, the asphalt showed a higher value (650 W m-²) in contrast to the arborized area (450 W m-²). Such results showed the importance of the materials correct selection for the buildings construction in urban areas and relevance of the arborization for the human thermal comfort.
Keywords
Environmetal radiation, Heat Islands, Heat transfer, Urbanization, Urban Microclimate
