Artículo
Albedo influence on the microclimate and thermal comfort of courtyards under Mediterranean hot summer climate conditions
Autor/es | López Cabeza, Victoria Patricia
Alzate Gaviria, Sebastian Diz Mellado, Eduardo María Rivera Gómez, Carlos Alberto Galán-Marín, Carmen |
Departamento | Universidad de Sevilla. Departamento de Construcciones Arquitectónicas I (ETSA) |
Fecha de publicación | 2022 |
Fecha de depósito | 2022-07-25 |
Publicado en |
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Premios | Premio Trimestral Publicación Científica Destacada de la US. Instituto Universitario de Arquitectura y Ciencias de la Construcción |
Resumen | The Urban Heat Island (UHI) effect represents a threat to the well-being of cities. Cities must adapt to this
phenomenon, prioritizing the improvement of outdoor environment quality. Urban materials have a great impact
on ... The Urban Heat Island (UHI) effect represents a threat to the well-being of cities. Cities must adapt to this phenomenon, prioritizing the improvement of outdoor environment quality. Urban materials have a great impact on outdoor environment quality, energy demand, and citizens’ well-being. Based on the literature, it can be stated that changing the albedo of on-site materials (pavements, facades) is a relevant strategy. The environmental impact of reflective materials from buildings to urban microclimate has been widely discussed in the literature. However, few publications assess the role of albedo in inner courtyards. This work uses simulation results to evaluate the impact of different surface albedo on the thermal performance and comfort of a courtyard in Seville. To do so, the simulation tool ENVI-met, one of the most widely used for outdoor spaces, is validated through a comparison with monitoring results. In conclusion, high reflectance compromises user comfort up to 5 ◦C of PET despite the fact that the use of high albedo on surfaces reduces surface temperature up to 25 ◦C in comparison with low albedo as it accumulates less heat by reflecting more solar radiation. Some of the recommendations given include the use of medium albedo (around 0.4) on walls to balance positive and negative effects, and high albedo on the pavements (above 0.7) |
Cita | López Cabeza, V.P., Alzate Gaviria, S., Diz Mellado, E.M., Rivera Gómez, C.A. y Galán Marín, . (2022). Albedo influence on the microclimate and thermal comfort of courtyards under Mediterranean hot summer climate conditions. Sustainable Cities and Society, 81, 1-19. |
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