Reciclado masivo de la envolvente urbano-edilicia basado en procesamiento digital de imágenes, La Plata, Argentina

CHÉVEZ, PEDRO JOAQUÍN; VIEGAS, GRACIELA MELISA; MARTINI, IRENE; BARBERO, DANTE ANDRÉS; DISCOLI, CARLOS ALBERTO

Revista de Urbanismo

Universidad de Chile

Año: 2020 p. 151 - 167

The purpose of this work is to provide solutions for mass retrofitting of building envelope in residential areas at urban level. An innovative methodology is developed that identify the different construction materials of the urban-building envelope in large-scale to estimate energy saving by recycling them with energy efficiency criteria. It is proposed the digital processing of SPOT 6 satellite and aerial images through semi-automatic classifications. In this case, the roofs are classified, the quality of the results is determined, the most appropriate processing is defined, and with these results envelope improvement strategies are applied for mass treatment at urban level. The work was carried out in the residential area of La Plata department, Argentina. The results showed that the classifications with aerial images achieve good precision for the complexity addressed (70%). This allowed estimating energy savings which can be seen on urban maps easily showing the annual energy saving potentialities for heating between 2000 and 3000 kWh/year per house. In effect, the use of remote sensors applied to the detailed and massive analysis of urban sectors provides a little disseminated knowledge of interest in our region. In turn, this methodology can be applied to cities with similar characteristics.