Analiza comparativă a transferului de căldură al unui material compozit avansat de izolație pentru clădiri prin utilizarea programelor de calcul comsol multiphysics® și matlab®

Translated title of the contribution: Comparative analysis of heat transfer for an advanced composite material used as insulation in the building field by means of comsol multiphysics® and matlab ® computer programs

S. Perilli, M. Regi, S. Sfarra, I. Nardi

Research output: Contribution to journalArticle

11 Citations (Scopus)

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.

Translated title of the contributionComparative analysis of heat transfer for an advanced composite material used as insulation in the building field by means of comsol multiphysics® and matlab ® computer programs
Original languageUndefined/Unknown
Pages (from-to)185-195
Number of pages11
JournalRevista Romana de Materiale/ Romanian Journal of Materials
Volume46
Issue number2
Publication statusPublished - 2016
Externally publishedYes

Keywords

  • Finite difference method
  • Finite element method
  • Hemp fibers
  • Infrared thermography
  • Sub-superficial discontinuities

ASJC Scopus subject areas

  • Materials Science(all)

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