The concept of harmonic thermal conductances

The concept of harmonic thermal conductances is very well suited for modelling dynamic thermal behaviour under periodic boundary conditions. A method for implementing such a model in simulation software is proposed and compared to simplified methods currently employed in international norms and standards. The practicality and efficiency of the harmonic approach is demonstrated using an appropriate simulation software package (“AnTherm”), which allows the three-dimensional, time-dependant visualisation of simulation results. In conclusion, arguments for specific future developments are presented, including the potential for model translation into 4D-enabled virtual environments.

The paper "Practical implementation of a harmonic conductance model
in thermal simulation software" has been presented lately during the 9^th Nordic Symposium on Building Physics held in Tampere (Finland) from 29^th May till 2^nd June 2011.
Read more at the AnTherm's website...

Transient thermal bridge calculation in AnTherm

As of today AnTherm will be available with transient (periodic, harmonic) calculation of thermal bridge indicators soon. The new release, calculating dynamic harmonic thermal conductance and phase shift will be released soon. These characteristic harmonic indicators are calculated without any need of boundary conditions thus simplifying the process of thermal bridge analysis significantly.


GA availability of HARMONIC option is expected by February 2010.

This new release will shift AnTherm to the next level and make it the only tool available for direct stationary and transient state 3D calculations to civil engineering and building experts on supported platform.