FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation

The necessity to improve the energy saving potential of buildings is now a duty. European and national policies are being implemented to address the important decisions being made on this subject. For these reasons, several studies focus on this relevant topic. This paper review not only focusses on...

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Main Authors: Domenico Curto, Vincenzo Franzitta, Andrea Guercio, Pierluca Martorana
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/7/2318
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author Domenico Curto
Vincenzo Franzitta
Andrea Guercio
Pierluca Martorana
author_facet Domenico Curto
Vincenzo Franzitta
Andrea Guercio
Pierluca Martorana
author_sort Domenico Curto
collection DOAJ
description The necessity to improve the energy saving potential of buildings is now a duty. European and national policies are being implemented to address the important decisions being made on this subject. For these reasons, several studies focus on this relevant topic. This paper review not only focusses on it but studies it in-depth. A commercial 3D simulation software was used to design a building sited in Palermo estimating the thermal losses before and after external envelope insulation. In particular, all the thermal bridges (TBs) were analysed with the finite element method (FEM) and mitigated with rock wool insulation. The paper shows the linear thermal transmittance difference and heat flux loss before and after TB mitigation. The results confirm the importance of installing an external insulation layer in the old building envelope. The linear thermal transmittance of TBs and the associated heat flux loss often decrease by more than 50%.
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spelling doaj.art-7aa540136ee840c29a9fb1b855af0f1c2023-11-30T23:08:34ZengMDPI AGEnergies1996-10732022-03-01157231810.3390/en15072318FEM Analysis: A Review of the Most Common Thermal Bridges and Their MitigationDomenico Curto0Vincenzo Franzitta1Andrea Guercio2Pierluca Martorana3Department of Engineering, University of Palermo, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, 90128 Palermo, ItalyThe necessity to improve the energy saving potential of buildings is now a duty. European and national policies are being implemented to address the important decisions being made on this subject. For these reasons, several studies focus on this relevant topic. This paper review not only focusses on it but studies it in-depth. A commercial 3D simulation software was used to design a building sited in Palermo estimating the thermal losses before and after external envelope insulation. In particular, all the thermal bridges (TBs) were analysed with the finite element method (FEM) and mitigated with rock wool insulation. The paper shows the linear thermal transmittance difference and heat flux loss before and after TB mitigation. The results confirm the importance of installing an external insulation layer in the old building envelope. The linear thermal transmittance of TBs and the associated heat flux loss often decrease by more than 50%.https://www.mdpi.com/1996-1073/15/7/2318thermal bridgesthermal bridges mitigationFEM analysisbuilding energy saving
spellingShingle Domenico Curto
Vincenzo Franzitta
Andrea Guercio
Pierluca Martorana
FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
Energies
thermal bridges
thermal bridges mitigation
FEM analysis
building energy saving
title FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
title_full FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
title_fullStr FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
title_full_unstemmed FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
title_short FEM Analysis: A Review of the Most Common Thermal Bridges and Their Mitigation
title_sort fem analysis a review of the most common thermal bridges and their mitigation
topic thermal bridges
thermal bridges mitigation
FEM analysis
building energy saving
url https://www.mdpi.com/1996-1073/15/7/2318
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AT pierlucamartorana femanalysisareviewofthemostcommonthermalbridgesandtheirmitigation