Abstract
The aim of this work is the study of the thermal flux through a multilayer insulation specimen, whose final panels could be designed for the green building field. The specimen was fabricated using an expanded styrofoam base, the mortar and milk cements, a fiberglass, and hemp fibers chopped and scattered into a surface smoothing. The dimensions of the specimen are 230 x 75 x 30.2 [mm]. The need to analyze a reduced surface in the development of a 3D visualization follows a computational aspect, i.e., to limit the number of degrees of freedom to be solved. Specifically, the research is focused on a comparative analysis among numerical simulations through the data processing by means of Matlab® - using the finite difference method (FDM) in the 1D domain -, and Comsol Multiphysics® - using the finite element method (FEM), both in 2D and 3D domains -. In addition, an experimental analysis centred on the detecting of the sub-superficial fiberglass by means of infrared thermography (IRT) technique is carried out. A specific Matlab® script was also implemented. Finally, can be observed that Comsol Multiphysics® not only allows a visualization of the flow, as it is done in Matlab®, but also of the entire specimen geometry with the possibility of realizing a video of the thermal transient during the heating and cooling phases.
| Original language | Undefined/Unknown |
|---|---|
| Pages (from-to) | 185-195 |
| Number of pages | 11 |
| Journal | Revista Romana de Materiale/ Romanian Journal of Materials |
| Volume | 46 |
| Issue number | 2 |
| Publication status | Published - 2016 |
| Externally published | Yes |
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Keywords
- Finite difference method
- Finite element method
- Hemp fibers
- Infrared thermography
- Sub-superficial discontinuities
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Analiza comparativă a transferului de căldură al unui material compozit avansat de izolație pentru clădiri prin utilizarea programelor de calcul comsol multiphysics® și matlab®. / Perilli, S.; Regi, M.; Sfarra, S.; Nardi, I.
In: Revista Romana de Materiale/ Romanian Journal of Materials, Vol. 46, No. 2, 2016, p. 185-195.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Analiza comparativă a transferului de căldură al unui material compozit avansat de izolație pentru clădiri prin utilizarea programelor de calcul comsol multiphysics® și matlab®
AU - Perilli, S.
AU - Regi, M.
AU - Sfarra, S.
AU - Nardi, I.
PY - 2016
Y1 - 2016
N2 - The aim of this work is the study of the thermal flux through a multilayer insulation specimen, whose final panels could be designed for the green building field. The specimen was fabricated using an expanded styrofoam base, the mortar and milk cements, a fiberglass, and hemp fibers chopped and scattered into a surface smoothing. The dimensions of the specimen are 230 x 75 x 30.2 [mm]. The need to analyze a reduced surface in the development of a 3D visualization follows a computational aspect, i.e., to limit the number of degrees of freedom to be solved. Specifically, the research is focused on a comparative analysis among numerical simulations through the data processing by means of Matlab® - using the finite difference method (FDM) in the 1D domain -, and Comsol Multiphysics® - using the finite element method (FEM), both in 2D and 3D domains -. In addition, an experimental analysis centred on the detecting of the sub-superficial fiberglass by means of infrared thermography (IRT) technique is carried out. A specific Matlab® script was also implemented. Finally, can be observed that Comsol Multiphysics® not only allows a visualization of the flow, as it is done in Matlab®, but also of the entire specimen geometry with the possibility of realizing a video of the thermal transient during the heating and cooling phases.
AB - The aim of this work is the study of the thermal flux through a multilayer insulation specimen, whose final panels could be designed for the green building field. The specimen was fabricated using an expanded styrofoam base, the mortar and milk cements, a fiberglass, and hemp fibers chopped and scattered into a surface smoothing. The dimensions of the specimen are 230 x 75 x 30.2 [mm]. The need to analyze a reduced surface in the development of a 3D visualization follows a computational aspect, i.e., to limit the number of degrees of freedom to be solved. Specifically, the research is focused on a comparative analysis among numerical simulations through the data processing by means of Matlab® - using the finite difference method (FDM) in the 1D domain -, and Comsol Multiphysics® - using the finite element method (FEM), both in 2D and 3D domains -. In addition, an experimental analysis centred on the detecting of the sub-superficial fiberglass by means of infrared thermography (IRT) technique is carried out. A specific Matlab® script was also implemented. Finally, can be observed that Comsol Multiphysics® not only allows a visualization of the flow, as it is done in Matlab®, but also of the entire specimen geometry with the possibility of realizing a video of the thermal transient during the heating and cooling phases.
KW - Finite difference method
KW - Finite element method
KW - Hemp fibers
KW - Infrared thermography
KW - Sub-superficial discontinuities
UR - http://www.scopus.com/inward/record.url?scp=84973651834&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973651834&partnerID=8YFLogxK
M3 - Статья
VL - 46
SP - 185
EP - 195
JO - Revista Romana de Materiale/ Romanian Journal of Materials
JF - Revista Romana de Materiale/ Romanian Journal of Materials
SN - 1583-3186
IS - 2
ER -