Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.

Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.

The proposal of energy efficiency measures in the residential sector in Argentina requires analyzing the architectonic possibilities of building rehabilitation using technologies that reduce energy consumption, that are feasible to implement locally. In regions with high solar radiation levels, as i...

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Egile Nagusiak: Balter, Julieta, Ganem, Carolina, Barea, Gustavo
Formatua: Online
Hizkuntza:spa
eng
Argitaratua: Universidad del Bío-Bío, Chile 2020
Sarrera elektronikoa:https://revistas.ubiobio.cl/index.php/RHS/article/view/4366
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spelling oai:ojs.revistas.ubiobio.cl:article-43662021-07-06T19:18:03Z Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina. Mejoras en el desempeño energético de edificios en verano mediante la integración de envolventes ventiladas en fachadas norte y cubiertas. El caso de Mendoza, Argentina. Balter, Julieta Ganem, Carolina Barea, Gustavo ventilated envelope Building rehabilitation Energy efficiency Cooling consumption envolvente ventilada rehabilitación edilicia eficiencia energética consumos para refrigeración The proposal of energy efficiency measures in the residential sector in Argentina requires analyzing the architectonic possibilities of building rehabilitation using technologies that reduce energy consumption, that are feasible to implement locally. In regions with high solar radiation levels, as is the case of the city of Mendoza, heat fluxes transmitted inside can be reduced by the natural ventilation of the layers in the envelope, both on facades and roofs, thus obtaining significant savings in consumption for cooling purposes. This work evaluates the potential for improvement with the integration of ventilated envelopes. The work methodology is structured in two stages: i) survey of residential buildings by morphological typology and analysis of rehabilitation possibilities with ventilated facades, considering the exposed envelope surfaces by orientation; ii) simulation of a case study - previously validated with onsite measurements - using the EnergyPlus software. On integrating ventilated facades and roofs important energy savings of around 32% were achieved, considering the building without users (unoccupied). In the case of units on the top floor, with roofs exposed to the outside, energy savings of 260% were recorded. La propuesta de medidas de eficiencia energética en el sector residencial de Argentina requiere el análisis de las posibilidades arquitectónicas de rehabilitación edilicia con tecnologías que disminuyan los consumos energéticos, factibles de implementarse a nivel local. En regiones con alto nivel de radiación solar, como es el caso de la ciudad de Mendoza, pueden reducirse los flujos de calor transmitidos al interior mediante la ventilación natural de las capas en la envolvente -tanto en fachadas como en cubiertas-, obteniéndose así importantes ahorros en los consumos para refrigeración. El presente trabajo evalúa el potencial de mejora con la integración de envolventes ventiladas. La metodología del trabajo se estructura en dos etapas: i) relevamiento de edificios residenciales, según la tipología morfológica, y análisis de las posibilidades de rehabilitación con fachada ventilada, de acuerdo a las superficies de envolvente expuesta por orientación; ii) simulación de un caso de estudio -previamente validado con mediciones in situ- con el software EnergyPlus. Al integrar fachadas y cubiertas ventiladas se lograron importantes ahorros energéticos del orden del 32%, considerando al edificio sin usuarios (desocupado). Para el caso de las unidades del último piso, con cubiertas expuestas al exterior se registraron ahorros energéticos del 260%. Universidad del Bío-Bío, Chile 2020-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf application/pdf https://revistas.ubiobio.cl/index.php/RHS/article/view/4366 10.22320/07190700.2020.10.02.07 Hábitat Sustentable; V.10, N.2 (2020): Diciembre 2020; 94 - 105 Sustainable Habitat; V.10, N.2 (2020): December 2020; 94 - 105 0719-0700 spa eng https://revistas.ubiobio.cl/index.php/RHS/article/view/4366/130 https://revistas.ubiobio.cl/index.php/RHS/article/view/4366/138 Derechos de autor 2020 Julieta Balter, Carolina Ganem, Gustavo Barea https://creativecommons.org/licenses/by-sa/4.0/deed.en
institution Universidad del Bío-Bío
collection OJS
language spa
eng
format Online
author Balter, Julieta
Ganem, Carolina
Barea, Gustavo
spellingShingle Balter, Julieta
Ganem, Carolina
Barea, Gustavo
Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
author_facet Balter, Julieta
Ganem, Carolina
Barea, Gustavo
author_sort Balter, Julieta
title Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
title_short Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
title_full Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
title_fullStr Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
title_full_unstemmed Improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. The case of Mendoza, Argentina.
title_sort improvements in the energy performance of buildings in summer, through the integration of ventilated envelopes on north-facing facades and roofs. the case of mendoza, argentina.
description The proposal of energy efficiency measures in the residential sector in Argentina requires analyzing the architectonic possibilities of building rehabilitation using technologies that reduce energy consumption, that are feasible to implement locally. In regions with high solar radiation levels, as is the case of the city of Mendoza, heat fluxes transmitted inside can be reduced by the natural ventilation of the layers in the envelope, both on facades and roofs, thus obtaining significant savings in consumption for cooling purposes. This work evaluates the potential for improvement with the integration of ventilated envelopes. The work methodology is structured in two stages: i) survey of residential buildings by morphological typology and analysis of rehabilitation possibilities with ventilated facades, considering the exposed envelope surfaces by orientation; ii) simulation of a case study - previously validated with onsite measurements - using the EnergyPlus software. On integrating ventilated facades and roofs important energy savings of around 32% were achieved, considering the building without users (unoccupied). In the case of units on the top floor, with roofs exposed to the outside, energy savings of 260% were recorded.
publisher Universidad del Bío-Bío, Chile
publishDate 2020
url https://revistas.ubiobio.cl/index.php/RHS/article/view/4366
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