168429 20260205155159.0 doi 10.1016/j.rser.2019.109469 sideral 114742 ART-2019-114742 eng Guillén-Lambea, Silvia Universidad de Zaragoza (orcid)0000-0003-3269-023X Air infiltrations and energy demand for residential low energy buildings in warm climates 2019 European building legislation is establishing increasingly stricter requirements to reduce the energy demand of buildings as a measure to decrease energy use and associated carbon emissions. In order to comply with the new standards, the most impactful parameters are subject to important revisions. Airtightness is revealed as an impacting parameter on air conditioning energy demand for nearly Zero Energy Buildings (nZEB). Currently the Passivhaus standard, taken as a constructive reference for nZEB in Europe, establishes 0.6 ACH as the maximum infiltration at 50 Pa for all new buildings irrespective of the climate zone. Nevertheless, the influence of infiltrations on the energy demand is lower in warm climates. This study estimates the potential heating and cooling energy demand for different levels of infiltration rates in southern Europe. For this purpose, a dwelling equipped with a mechanical ventilation system with a heat exchanger has been simulated in TRNSYS. The calculations have been performed in different cities with different levels of infiltrations. This research provides the information required to set airtightness parameters in residential buildings in southern Europe to satisfy the new requirements for nZEB. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MICINN/ENE2014-57262-R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 12.11 2019 ENERGY & FUELS 7 / 112 = 0.062 2019 Q1 T1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 1 / 41 = 0.024 2019 Q1 T1 3.632 2019 Renewable Energy, Sustainability and the Environment 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Rodríguez-Soria, Beatriz (orcid)0000-0001-5215-7112 Marín, José M. Universidad de Zaragoza (orcid)0000-0002-2463-7271 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 116 (2019), 109469 [12 pp.] Renew. sustain. energy rev. RENEWABLE & SUSTAINABLE ENERGY REVIEWS 1364-0321 1197550 http://zaguan.unizar.es/record/168429/files/texto_completo.pdf Postprint 1727627 http://zaguan.unizar.es/record/168429/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:168429 articulos driver 2026-02-05-14:36:23 ARTICLE