Thermal Bridge Heat Transfer & Vapour Diffusion Simulation Program AnTherm Version 6.115 - 8.133 

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Validation according to EN ISO 10211:2007

The program package AnTherm fulfils all requirements raised in EN ISO 10211:2007 for the simulation program to qualify it as two- and three-dimensional, stationary precise method („Class A – Method“).

The EN ISO 10211 "Thermal bridges in building construction — Heat flows and surface temperatures — Detailed calculations" in its appendix A provides the validation procedure by which a "thermal bridges program" must conform to, to be qualified as "high precision method". The application package AnTherm conforms in its current version to all respective criteria specified by EN ISO 10211:2007 for "high precision calculation methods" and thus it qualifies as "two- and three-dimensional steady-state high precision method (class A method)"

Details of validation and benchmark results are put together the calculation report of validation examples from the EN ISO 10211:2007 by the application package Antherm.

  • Reference case 1 (two-dimensional; temperature distribution within "half of a square column")
    By the precision set within the standard (1 decimal place after comma) AnTherm provides exactly concordant results. By concerning uncertainties resulting from rounding there is full concordance of results calculated by  AnTherm with values calculated analytically.
     

  • Reference case 2 (two-dimensional; temperature distribution and heat flow within a roof construction)
    This reference is considered shaky due to the temperature and heat flow calculation requirement within the junction made of a aluminium bracket nested within insulating material.
    By concerning uncertainties resulting from rounding there is full concordance of results calculated by AnTherm with values set in EN ISO 10211:2007.
     

  • Reference case 3 (three-dimensional; temperature distribution and heat flows through the wall-balcony junction)
    By concerning uncertainties resulting from rounding there is full concordance of results calculated by AnTherm with values set in EN ISO 10211:2007.
    The difference between heat losses of interior spaces α and β and gains of the exterior (space α) calculated by AnTherm and those specified by EN ISO 10211:2007 are smaller than 0.11 %. The requirement set in EN ISO 10211, that differences of calculated heat flow values must not exceed 1%, is met by AnTherm in full.
     

  • Reference case 4 (three-dimensional; temperature distribution and heat flows within a three dimensional thermal bridge consisting of an iron bar penetrating an insulation layer)
    By concerning uncertainties resulting from rounding there is full concordance of results calculated by AnTherm with values set in EN ISO 10211:2007
    The difference of 0.43% between the calculated heat flow and the value set by the standard is below the allowed tolerance of 1% as required by the reference case; The temperature calculated at the hottest point at exterior surface deviates by 0.003K which is below the tolerance of 0.005K set by the standard for that reference case; the criteria are met in full by AnTherm.

Read more here:

See also: Validation according to EN ISO 10077-2:2003, Main menu Help->Example Load...


 Model, Calculate, Simulate and Analyse Thermal Heat Bridges in 2D and 3D with AnTherm®  

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2017-03-22 10:19 +0100