Experimental evaluation of different natural cold sinks integrated into a concrete façade
| dc.contributor.author | Guerrero Delgado, M. Carmen | |
| dc.contributor.author | Sánchez Ramos, José | |
| dc.contributor.author | Cabeza, Luisa F. | |
| dc.contributor.author | Álvarez Domínguez, Servando | |
| dc.date.accessioned | 2020-10-05T07:02:38Z | |
| dc.date.available | 2022-09-17T22:09:10Z | |
| dc.date.issued | 2020 | |
| dc.date.updated | 2020-10-05T07:02:39Z | |
| dc.description.abstract | The new demands, the climate change and challenges set by society intend to generate major reductions in the heating and cooling demands of buildings. However, conventional measures to improve the performance of the building envelope can easily reduce the heating demand and, in many cases, worsen the cooling behaviour of the building. Therefore, we need innovative solutions that provide high heating performance and use natural heat sinks to cool the building's thermal mass when in cooling mode. This work describes and tests a solution consisting of a façade built as a precast concrete element with high thermal inertia. This solution integrates different natural cooling techniques as a natural sink. For that, it has different modes of operation when in cooling mode, which allow it to adapt to the needs of the building and the natural resources available to guarantee high performance. To evaluate the impact of the three operating modes of the proposed solution, an experimental prototype has been built and tested over two summers. This experimentation, combined with an inverse thermal characterisation model, has made it possible to estimate the real impact of three passive cooling measures (nocturnal storage of cold in the thermal mass of the façade element, nocturnal ventilation of the building itself through the façade element and pre-cooling of the air before entering the chamber by using the evaporative system). All these measures are presented as different possible modes of operation of the described solution, with hardly any extra cost on the base solution, but with a considerable energy impact. | |
| dc.description.sponsorship | This study was funded by the European Commission under the projects UIA03-301-CartujaQanat of Urban Innovative Action (UIA) and MedEcoSuRe - Mediterranean University as Catalyst for Eco-Sustainable Renovation (A_B.4.3_0218). It has been co-financed by the European Regional Development Funds (ERDF) and the University of Seville under its Research Plan VI (VPPI-US). | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.doi | https://doi.org/10.1016/j.enbuild.2020.110466 | |
| dc.identifier.idgrec | 030496 | |
| dc.identifier.issn | 0378-7788 | |
| dc.identifier.uri | http://hdl.handle.net/10459.1/69599 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier | |
| dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.enbuild.2020.110466 | |
| dc.relation.ispartof | Energy and Buildings, 2020, vol. 228, p. 110466-1-110466-18 | |
| dc.rights | cc-by-nc-nd (c) Elsevier Science, 2020 | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Climate change mitigation technology | |
| dc.subject | Natural cold sinks | |
| dc.subject | Night cooling | |
| dc.subject | Evaporative cooling | |
| dc.title | Experimental evaluation of different natural cold sinks integrated into a concrete façade | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |