Anthropogenic Vehicular Heat and Its Influence on Urban Planning

Anthropogenic heat (QF) is one of the parameters that contributes to the urban heat island (UHI) phenomenon. Usually, this variable is studied holistically, among other anthropogenic flux such as industrial, vehicular, buildings, and human metabolism, due to the complexity of data collection through...

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Bibliographic Details
Published in:Atmosphere 2022-08, Vol.13 (8), p.1259
Main Authors: Grajeda-Rosado, Ruth M., Alonso-Guzmán, Elia M., Escobar-Del Pozo, Carlos, Esparza-López, Carlos J., Sotelo-Salas, Cristina, Martínez-Molina, Wilfrido, Mondragon-Olan, Max, Cabrera-Macedo, Alfonso
Format: Article
Language:English
Subjects:
Anthropogenic factors
anthropogenic vehicular heat
Aspect ratio
CAD
Cities
Computer aided design
Data collection
Emissions
Energy balance
Energy consumption
Energy efficiency
Environmental aspects
Green buildings
Heat
Heat flow
Heat transfer
Heat transmission
Human influences
Metabolism
Microbalances
Radiation
Remote sensing
Software
Street canyons
Temperature profile
Temperature profiles
Urban areas
urban canyon
urban heat island
Urban heat islands
Urban planning
Urban structures
Vehicles
Wind
Wind speed
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Summary:Anthropogenic heat (QF) is one of the parameters that contributes to the urban heat island (UHI) phenomenon. Usually, this variable is studied holistically, among other anthropogenic flux such as industrial, vehicular, buildings, and human metabolism, due to the complexity of data collection through field measurements. The aim of this paper was to weigh vehicular anthropogenic heat and its impact on the thermal profile of an urban canyon. A total of 108 simulations were carried out, using the ANSYS Fluent® software, incorporating variables such as the number of vehicles, wind speed, urban canyon orientation, and urban canyon aspect ratio. The results were compared with a database of 61 American cities in 2015 and showed that orientation is the main factor of alteration in vehicular heat flow, increasing it in a range of 2 °C to 6.5 °C, followed by the wind speed (1.2 to 2.2 m/s), which allows for decreases of 1 to 3.8 °C. The exploration of these variables and their weighing in the definition of urban street canyon temperature profiles at the canopy level of urban structures provides valuable information on the hygrothermal comfort of its inhabitants; its appropriate quantification can be an example of many urban energy balances altering processes.
ISSN:2073-4433
2073-4433
DOI:10.3390/atmos13081259