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Thermal properties and Life Cycle Assessment of new eco-sandwich panel for building thermal insulation.

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Title: Thermal properties and Life Cycle Assessment of new eco-sandwich panel for building thermal insulation.
Authors: Er-rradi, Hafida1 (AUTHOR) h.er-rradi@enim.ac.ma, Mghazli, Mohamed Oualid2,3 (AUTHOR), Jilbab, Abdelilah4 (AUTHOR), Bojji, Chakib4,5 (AUTHOR), Idchabani, Rachida6 (AUTHOR)
Source: Journal of Building Physics. Nov2023, Vol. 47 Issue 3, p332-352. 21p.
Subjects: Sandwich construction (Materials), Product life cycle assessment, Thermal insulation, Thermal properties, Thermal diffusivity, Thermal conductivity
Abstract: Lightweight eco-materials are in high demand in many sectors, such as aerospace, industry, and building due to their several characteristics. The present paper is an experimental investigation of the thermal characteristics of novel sandwich panels made with local and ecological materials namely agglomerated cork for the core and bio-composite materials for the skin. Three configurations (symmetric, asymmetric, and two layers) were studied with different cork core thicknesses. Density values have been measured and compared. Thermal characterization consists of determining thermal conductivity and specific heat using a HFM apparatus; whilst thermal diffusivity and thermal effusivity have been calculated using the experimental findings. The panels are lightweight and thermally insulating. The values of thermal conductivity are in the range 0.071 and 0.102 W.m−1.K−1. The comparison between experimental results of thermal conductivity to theoretical values highlights the accuracy of method for multi-layer thermal characterization and the good adhesion between layers. Finally, a life cycle assessment of the new sandwich panels has been carried out and compared with common insulation materials. The sandwich panels are efficient in terms of embodied energy and CO2 emissions compared to commercialized insulators and some insulators based on recycled or natural materials, the embodied energy for symmetric configuration with 4 cm cork core are 79.73, 94.75, and 89.35 MJ/FU corresponding to an embodied carbon 5.33, 6.32, and 6.01 CO2/FU respectively. They can be classified in the middle between synthetic and natural insulators. Based on the findings, it was concluded that utilizing these sandwich panels as construction materials for interior paneling or partition walls could offer benefits in terms of being environmentally sustainable and cost-efficient. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Building Physics is the property of Sage Publications Inc. 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: 173550846
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Thermal properties and Life Cycle Assessment of new eco-sandwich panel for building thermal insulation.
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  Data: <searchLink fieldCode="AR" term="%22Er-rradi%2C+Hafida%22">Er-rradi, Hafida</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> h.er-rradi@enim.ac.ma</i><br /><searchLink fieldCode="AR" term="%22Mghazli%2C+Mohamed+Oualid%22">Mghazli, Mohamed Oualid</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jilbab%2C+Abdelilah%22">Jilbab, Abdelilah</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bojji%2C+Chakib%22">Bojji, Chakib</searchLink><relatesTo>4,5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Idchabani%2C+Rachida%22">Idchabani, Rachida</searchLink><relatesTo>6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Building+Physics%22">Journal of Building Physics</searchLink>. Nov2023, Vol. 47 Issue 3, p332-352. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Sandwich+construction+%28Materials%29%22">Sandwich construction (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Product+life+cycle+assessment%22">Product life cycle assessment</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+insulation%22">Thermal insulation</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+diffusivity%22">Thermal diffusivity</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+conductivity%22">Thermal conductivity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Lightweight eco-materials are in high demand in many sectors, such as aerospace, industry, and building due to their several characteristics. The present paper is an experimental investigation of the thermal characteristics of novel sandwich panels made with local and ecological materials namely agglomerated cork for the core and bio-composite materials for the skin. Three configurations (symmetric, asymmetric, and two layers) were studied with different cork core thicknesses. Density values have been measured and compared. Thermal characterization consists of determining thermal conductivity and specific heat using a HFM apparatus; whilst thermal diffusivity and thermal effusivity have been calculated using the experimental findings. The panels are lightweight and thermally insulating. The values of thermal conductivity are in the range 0.071 and 0.102 W.m−1.K−1. The comparison between experimental results of thermal conductivity to theoretical values highlights the accuracy of method for multi-layer thermal characterization and the good adhesion between layers. Finally, a life cycle assessment of the new sandwich panels has been carried out and compared with common insulation materials. The sandwich panels are efficient in terms of embodied energy and CO2 emissions compared to commercialized insulators and some insulators based on recycled or natural materials, the embodied energy for symmetric configuration with 4 cm cork core are 79.73, 94.75, and 89.35 MJ/FU corresponding to an embodied carbon 5.33, 6.32, and 6.01 CO2/FU respectively. They can be classified in the middle between synthetic and natural insulators. Based on the findings, it was concluded that utilizing these sandwich panels as construction materials for interior paneling or partition walls could offer benefits in terms of being environmentally sustainable and cost-efficient. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Building Physics is the property of Sage Publications Inc. 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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RecordInfo BibRecord:
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        Value: 10.1177/17442591231208360
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      – Code: eng
        Text: English
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        PageCount: 21
        StartPage: 332
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      – SubjectFull: Sandwich construction (Materials)
        Type: general
      – SubjectFull: Product life cycle assessment
        Type: general
      – SubjectFull: Thermal insulation
        Type: general
      – SubjectFull: Thermal properties
        Type: general
      – SubjectFull: Thermal diffusivity
        Type: general
      – SubjectFull: Thermal conductivity
        Type: general
    Titles:
      – TitleFull: Thermal properties and Life Cycle Assessment of new eco-sandwich panel for building thermal insulation.
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            NameFull: Er-rradi, Hafida
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            NameFull: Mghazli, Mohamed Oualid
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            NameFull: Jilbab, Abdelilah
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            NameFull: Bojji, Chakib
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            NameFull: Idchabani, Rachida
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            – D: 01
              M: 11
              Text: Nov2023
              Type: published
              Y: 2023
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              Value: 47
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            – TitleFull: Journal of Building Physics
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