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Título: | Methodology for the study of the envelope airtightness of residential buildings in Spain: A case study |
Autor: | Feijó-Muñoz, Jesús; Poza-Casado, Irene; Alonso González-Lezcano, Roberto; Pardal, Cristina; Echarri, Víctor; Assiego De Larriva, Rafael; Fernández-Agüera, Jesica CSIC; Dios-Viéitez, María Jesús; Campo-Díaz, Víctor José del; Montesdeoca Calderín, Manuel; Padilla-Marcos, Miguel Ángel; Meiss, Alberto | Palabras clave: | Infiltrations Airtightness of the envelope Blower door test Residential buildings |
Fecha de publicación: | 2018 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Energies 11(4): 704 (2018) | Resumen: | Air leakage and its impact on the energy performance of dwellings has been broadly studied in countries with cold climates in Europe, US, and Canada. However, there is a lack of knowledge in this field in Mediterranean countries. Current Spanish building regulations establish ventilation rates based on ideal airtight envelopes, causing problems of over-ventilation and substantial energy losses. The aim of this paper is to develop a methodology that allows the characterization of the envelope of the housing stock in Spain in order to adjust ventilation rates taking into consideration air leakage. A methodology that is easily applicable to other countries that consider studying the airtightness of the envelope and its energetic behaviour improvement is proposed. A statistical sampling method has been established to determine the dwellings to be tested, considering relevant variables concerning airtightness: climate zone, year of construction, and typology. The air leakage rate is determined using a standardized building pressurization technique according to European Standard EN 13829. A representative case study has been presented as an example of the implementation of the designed methodology and results are compared to preliminary values obtained from the database. | Descripción: | This article belongs to the Section Sustainable Energy. | Versión del editor: | https://doi.org/10.3390/en11040704 | URI: | http://hdl.handle.net/10261/211609 | DOI: | 10.3390/en11040704 | Identificadores: | doi: 10.3390/en11040704 e-issn: 1996-1073 |
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