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AnTherm (Thermal Heat Bridges)

AnTherm (Analysis of Thermal behavior of Building Constructions with Heat Bridges) is a powerful program used for heat flow calculation in building construction elements - the thermal heat bridges and vapor bridges. Thermal Bridge Assessment can be executed easily, quickly and precisely with AnTherm.
This Thermal Heat / Cold Bridge Simulation Software calculates the distribution of temperature, heat streams and vapor diffusion streams within building components of arbitrary form and built as composite of arbitrary materials. Furthermore AnTherm can compute and evaluate the dew point values (condensing humidity) at all component surfaces as well as partial vapor pressure in components interior. This application is also suitable for analyzing dynamic behavior of building components (for periodic, harmonic, transient boundary conditions).

For the technically qualified designer, AnTherm is a reliable, indispensable tool in meeting the demands of the current standards (ISO, EN, ...) for evaluating thermal performance thoroughly and precisely.
The detailed analysis of thermal bridges for passive house planning, energy efficiency assessment or certification need not be complex nor sophisticated today.

• The thermal heat bridge (cold bridge) can be modeled in 2D or 3D
• Two and three dimensional stationary (steady state) and transient (harmonic, periodic) heat flow simulation
• Modeling of multiple space cases and volumetric heat sources (power-, heating sources or sinks)
• Standard conforming, detailed and fast calculation (validated conform to EN ISO 10211 and EN ISO 10077) - stationary - and transient (harmonic, periodic) EN ISO 13786
• Coupling coefficient matrix values (Leitwerte L^3D or L^2D) and precision criteria (Close-Up error)
• Linear thermal transmittance Ψ
• all input for point thermal transmittance Χ (chi)
• Temperature distribution (2D and/or 3D)
• Interactive definition of arbitrary probe points and slice views
• dew point on the surfaces of the construction (condensing humidity)
• Θ^*_i, g^*_i,j, f^*_Rsi:  coldest point of each space T_i*, temperature weighting factor g* and
  temperature factor fRsi*
• Advanced 3D-visualisation, slice views, exploded views, transparency and many more
• Meaningful, easily understood 2D- und 3D - result representations
• Heat Stream followed interactively in 3D (heat flux and heat stream vector field)
• Saturated Vapor Pressure in components interior (even without the VAPOR-Option ! )
• Stationary Vapor Diffusion analysis, Partial Pressure distribution (available with VAPOR-Option)
• Evaluation of Vapor Core Condensation Risk within components interior (available with VAPOR-Option)
• Vapor Diffusion Stream followed interactively in 3D (available with VAPOR-Option)
• Visualization with Isolines, streamlines, hedgehog vectors, isosurfaces, isotherms, model slices and many more
• Enhancement of reports with direct transfer of images (export)
• Import (data transfer) from various sources
• Database of materials (material database of DIN, Ö-Norm etc.)
• Simple control, little learning effort, Promptitude of results
• Variability of capability variants (2D/3D, discretisation) and options

Having deep knowledge of the physically well-founded concept of thermal coupling coefficients and with more then 20 years of experience in development and use of thermal heat bridge applications the AnTherm has established to be very powerful but easy to use program package. The basic fundamentals of developed theory (reference provided within the book "Wärmebrücken / Cold Bridges") have been taken over into the international "thermal heat bridges" standard. Therefore it is an easy task to develop AnTherm conforming to standards and to fully satisfy validation test criteria.

AnTherm is a powerful program package for the calculation of temperature distributions and heat flows in building structures - particularly such with thermal heat bridges (cold bridges). For the technically qualified designer, AnTherm is a reliable, indispensable tool in meeting the demands of the current European standards (EN) for evaluating thermal performance thoroughly and precisely.

Computational capabilities of the thermal bridge software AnTherm include, amongst others:

• steady state (stationary) and transient calculation of the temperature field in building constructions in two- and three-dimensional modeling
• fully automatic calculation of the matrix if thermal conductance coefficients L^2D or L^3D
• completely automated calculation of linear thermal transmittance Ψ (psi)
• transient periodic, harmonic calculation of the matrix of dynamic (harmonic) coupling coefficients
• fully automatic determination of temperature weighting factors at locations of lowest surface temperature for all modeled spaces
• applicable and suitable with very detailed components (e.g. facades, window frames, ...) and for very large, extensive calculation cases (e.g. components in contact with ground, whole space envelopes, groups of spaces, ...)
• calculation and visualization of the distribution of relative condensing humidity at all surfaces
• calculation of the field of partial vapor pressure and, having the difference built to saturation pressure easy identification of core condensation risk within the component (with DAMPF-Option),
• extensive capabilities of three dimensional graphical evaluation and visualization in 3D

It shall be emphasized, that Prof. Dr. Krec, one of the fathers of the concept of "thermal conductance coefficients", has not only been continuously involved at the development of AnTherm and took part in decision making and verification of the software, but also stands by, by phone, in case of questions and conversation demand regarding the area of multidimensional thermal transfer and application of Antherm to AnTherm users.

Interested? Contact us for more information.

Or try and evaluate the demonstrational version just now!

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