Optimización morfológica de cañones urbanos con diseño evolutivo para mitigar la isla urbana de calor
DOI:
https://doi.org/10.32870/rvcs.v0i13.224Keywords:
evolutionary algorithms, urban overheating, urban heat island, urban canyon, mitigation strategiesAbstract
This study analyzes at the microscale level and under a quantitative approach, the morphological optimization of an urban canyon based on its geometric aspect ratio as a mitigation strategy for an urban heat island, through evolutionary design algorithmic techniques. In the initial stages of the study, the use of interpolated climatic information was used, which allowed the modeling of a typical meteorological year for a dry temperate microclimate. The results obtained show a significant potential for obstruction to solar access due to a higher aspect ratio (h/w>2) as a result of vertical densification, which promoted a decrease in the Universal Thermal Comfort Index (UTCI) of up to 2°C: from 35°C to 33°C to the center of the canyon due to the increase in the projection of shadows by taller buildings; likewise, the total amount of solar radiation that reaches the geometric center of the canyon surface is re- reduced from 6.39 to 4 kWh/m2, which represents a decrease of 2.3 kWh/m2 and the hours of available sunlight decreased from 11:00 hours to 7:00 hours., which represents up to four hours less direct sunlight to the center of the canyon, providing thermally cooler urban environments. However, it is important to mention that studies must be carried out over a year to analyze the effect of a higher aspect ratio on the surface temperature of the ground during cold days in the city; likewise, carry out fluid mechanics analysis in the different morphological composition scenarios given that taller buildings are expected to affect wind patterns in the area.Metrics
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