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Development and Experimental Assessment of Components for Architecturally Integrated Solar Air-Heating Façades.

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Title: Development and Experimental Assessment of Components for Architecturally Integrated Solar Air-Heating Façades.
Authors: Friji, Khaoula1,2 (AUTHOR), Cárdenas, Valeria Villamil1,2 (AUTHOR), Serra, Valentina1 (AUTHOR), Bouabidi, Abdallah2 (AUTHOR), Fantucci, Stefano1 (AUTHOR) stefano.fantucci@polito.it
Source: Energies (19961073). Nov2025, Vol. 18 Issue 22, p5955. 22p.
Subjects: Thermal resistance, Solar heating, Energy consumption, Architectural details, Wall panels, Built environment, Aerogels, Light transmission
Abstract: This study investigates a Solar Air Heating Façade (SAHF), architecturally enhanced through the integration of granular translucent Silica-Aerogel into multi-wall polycarbonate (PC) panels and the implementation of coated timber lamellas. The novelty of this work lies in the combined evaluation of thermal resistance and solar transmission properties of façade-integrated components, aiming to improve both energy efficiency and architectural integration. Two experimental campaigns were conducted: (i) thermal transmittance tests to determine the U-value of PC panels with and without Silica-Aerogel infill, and (ii) solar transmission measurements under controlled artificial solar radiation to evaluate the optical performance of various lamella configurations and coatings. Results show that the incorporation of Silica-Aerogel reduced the U-value by 41.8%, achieving a minimum of 1.19 W/m2 K with the 20 mm thick PC panel, while decreasing the solar transmission of 43–53% depending on the incidence angle. The integration of reflective aluminum-coated timber lamella demonstrated promising results, enabling effective management of solar radiation. These findings highlight the potential of façade systems that combine high-performance insulation with visually integrated shading elements. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 189606987
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Development and Experimental Assessment of Components for Architecturally Integrated Solar Air-Heating Façades.
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  Data: <searchLink fieldCode="AR" term="%22Friji%2C+Khaoula%22">Friji, Khaoula</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cárdenas%2C+Valeria+Villamil%22">Cárdenas, Valeria Villamil</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Serra%2C+Valentina%22">Serra, Valentina</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bouabidi%2C+Abdallah%22">Bouabidi, Abdallah</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fantucci%2C+Stefano%22">Fantucci, Stefano</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> stefano.fantucci@polito.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Nov2025, Vol. 18 Issue 22, p5955. 22p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Thermal+resistance%22">Thermal resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+heating%22">Solar heating</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Architectural+details%22">Architectural details</searchLink><br /><searchLink fieldCode="DE" term="%22Wall+panels%22">Wall panels</searchLink><br /><searchLink fieldCode="DE" term="%22Built+environment%22">Built environment</searchLink><br /><searchLink fieldCode="DE" term="%22Aerogels%22">Aerogels</searchLink><br /><searchLink fieldCode="DE" term="%22Light+transmission%22">Light transmission</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study investigates a Solar Air Heating Façade (SAHF), architecturally enhanced through the integration of granular translucent Silica-Aerogel into multi-wall polycarbonate (PC) panels and the implementation of coated timber lamellas. The novelty of this work lies in the combined evaluation of thermal resistance and solar transmission properties of façade-integrated components, aiming to improve both energy efficiency and architectural integration. Two experimental campaigns were conducted: (i) thermal transmittance tests to determine the U-value of PC panels with and without Silica-Aerogel infill, and (ii) solar transmission measurements under controlled artificial solar radiation to evaluate the optical performance of various lamella configurations and coatings. Results show that the incorporation of Silica-Aerogel reduced the U-value by 41.8%, achieving a minimum of 1.19 W/m2 K with the 20 mm thick PC panel, while decreasing the solar transmission of 43–53% depending on the incidence angle. The integration of reflective aluminum-coated timber lamella demonstrated promising results, enabling effective management of solar radiation. These findings highlight the potential of façade systems that combine high-performance insulation with visually integrated shading elements. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/en18225955
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        Text: English
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        PageCount: 22
        StartPage: 5955
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      – SubjectFull: Thermal resistance
        Type: general
      – SubjectFull: Solar heating
        Type: general
      – SubjectFull: Energy consumption
        Type: general
      – SubjectFull: Architectural details
        Type: general
      – SubjectFull: Wall panels
        Type: general
      – SubjectFull: Built environment
        Type: general
      – SubjectFull: Aerogels
        Type: general
      – SubjectFull: Light transmission
        Type: general
    Titles:
      – TitleFull: Development and Experimental Assessment of Components for Architecturally Integrated Solar Air-Heating Façades.
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            NameFull: Friji, Khaoula
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            NameFull: Cárdenas, Valeria Villamil
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            NameFull: Serra, Valentina
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              Text: Nov2025
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              Y: 2025
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