BEM Utility for Simulation of Linear Thermal Bridges

• Autorzy: Werner-Juszczuk A. J. , Rynkowski P.

Identyfikatory

DOI

10.12921/cmst.2016.22.01.003

• Języki publikacji: EN

Abstrakty

EN

This paper aims to prove utility of the boundary element method for modelling 2D heat transfer in complex multiregions, particularly in thermal bridges. It proposes BEM as an alternative method commonly applied in commercial software for simulation of temperature field and heat flux in thermal bridges, mesh methods (FEM, FDM).The BEM algorithm with Robin boundary condition is developed for modelling 2D heat transfer in complex multi-regions. Simulation is performed with the authoring Fortran program. The developed mathematical algorithm and computer program are validated according to standard EN ISO 10211:2007. Two examples of complex thermal bridges that commonly appears in house building are presented. Analysis of two reference cases, listed in standard ISO, confirms utility of the proposed BEM algorithm and Fortran program for simulation of linear thermal bridges. Conditions, quoted in standard ISO, are satisfied with models of a relatively small number of boundary elements. Performed validation constitutes the base for further development of BEM as an efficient method for modelling heat transfer in building components, and for the prospective application in commercial software.

Słowa kluczowe

EN

linear thermal bridges; multi-region; boundary element method; heat transfer

• Wydawca: Institute of Bioorganic Chemistry Scientific Publishers OWN, Polish Academy of Sciences
• Czasopismo: Computational Methods in Science and Technology
• Rocznik: 2016
• Tom: Vol. 22, No. 1
• Strony: 31--40
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Werner-Juszczuk A. J.

• Białystok University of Technology Faculty of Civil and Environmental Engineering, HVAC Department

autor

Rynkowski P.

• Białystok University of Technology Faculty of Civil and Environmental Engineering, HVAC Department

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.