Fachadas ventiladas : hacia un diseño eficiente en Brasil
The ventilated facade is a multi-layer element that has been used in Europe for several decades. It has high degree of industrialization and specialization of elements. This "skin" of the building has evolved considerably since its inception in the UK, where the targets only prevented the...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/404094 |
| Acceso en línea: | http://hdl.handle.net/10803/404094 https://dx.doi.org/10.5821/dissertation-2117-105830 |
| Access Level: | acceso abierto |
| Palabra clave: | Fachada ventilada Eficiencia energética Simulación energética Brasil TRNSYS (Energy simulation software) Ventilated façade Energy efficiency Energy simulation Brazil Àrees temàtiques de la UPC::Arquitectura 69 72 |
| Sumario: | The ventilated facade is a multi-layer element that has been used in Europe for several decades. It has high degree of industrialization and specialization of elements. This "skin" of the building has evolved considerably since its inception in the UK, where the targets only prevented the passage of water inland, avoiding moisture. Over the years it has changed to thin layers with different performances and attractive exterior finishes. It has also won the energy saving function in modern times, mainly in the sunny Mediterranean countries, where it appears to have a favorable thermal behavior, according to several studies (Naboni, 2007, Irulegui, 2010; Giancola, 2010; Aparicio Fernández, 2010 ; Suarez, 2012, at Peci Lopez, 2012) A bit far from this reality, Brazil begins to take its first steps towards industrialization of the facades. The ventilated facade is still not a reality but it is beginning to gain space. The proposal of this thesis is to insert the bioclimatic vision in applying the ventilated facade in Brazil, a very sunny country in which this enclosure has, according to studies, potential energy savings. The aim of this thesis is to provide information for decision-making in the project. The study was conducted using simulations in Trnsys 17 © (Klein, 2006) program validated for simulating ventilated facades by Professor Carolina Aparicio Fernandez of the Polytechnic University of Valencia. From this validation, the simulations have been performed for 8 bioclimatic zones of Brazil (ABNT, 2005). Some variables of the facade were tested for the Brazilian climate: absorptivity and emissivity (relative to solar radiation), air movement (relative to width of the air chamber, incoming and outgoing air, the presence of open joints) transmittance of the inner sheet (relative to thermal insulation) and exterior sheet. At the end an important design factor of the facade was tested: the percentage of glazing. The study objective is to help the designer who wants to use a ventilated facade as a passive element or energy saving in construction. Using various simulations it has been possible to verify the limits and potential of the ventilated facade in tropical and subtropical climates. |
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