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Buildings 2017, 7(4), 90; doi:10.3390/buildings7040090

Numerical Modelling for the Thermal Performance Assessment of a Semi-Opaque Façade with a Multilayer of Nano-Structured and Phase Change Materials

Department of Industrial Engineering, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
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Received: 28 July 2017 / Revised: 31 August 2017 / Accepted: 11 October 2017 / Published: 14 October 2017
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Abstract

The aim of our present study was to assess and compare the thermo-physical and energy behaviour of different integrated building façades, using a multi-physics simulation approach. Advanced integrated façades composed of opaque modules, one of them with a phase change materials (PCM) layer, the others with multilayer panels, combined with transparent ones, consisting of nano-structured materials and new-generation photovoltaic systems, were investigated. A multi-physics approach was used for the design optimization of the studied components and evaluation of their thermo-physical and heat transfer performance. In particular, computational fluid dynamics (CFD) multi-physics transient simulations were performed to assess air temperature and velocity fields inside the ventilated cavities. Analysis of heat and mass exchange through all the components was assessed during heating and cooling mode of a reference building. The typical Mediterranean climate was considered. Results comparison allowed the dynamic heat transfer evaluation of the multilayer façades as a function of variable climatic conditions, and their flexibility and adaptability exploitation, when different energy strategies are pursued. The multi-physics modelling approach used, proved to be a strong tool for the energy design optimization and energy sustainability evaluation of different advance materials and building components. View Full-Text
Keywords: building energy technology; advanced integrated façade; phase change materials; integrated PV module; nano-structured materials; energy design; CFD simulations; multi-physics modelling building energy technology; advanced integrated façade; phase change materials; integrated PV module; nano-structured materials; energy design; CFD simulations; multi-physics modelling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Balocco, C.; Petrone, G. Numerical Modelling for the Thermal Performance Assessment of a Semi-Opaque Façade with a Multilayer of Nano-Structured and Phase Change Materials. Buildings 2017, 7, 90.

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