XRG products for simulation regardless of the service providers

We offer profitable solutions due to our extensive experience from simulations and modelling projects using languages like Modelica, C/C++/C#, Java, Python and Visual Basic.
These tools allow you to conduct, control and visualize simulations and optimize systems independently and cost-effective.

XRG Library

XRG-Libraries at a glance - modular and flexible

Modular XRG libraries based on the Modelica software for simulating and modeling several scenarios.


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Modelling air-conditioned zones and thermal comfort.

Modelling of HVAC systems in buildings.

Coarse-Grid-CFD Simulations in Modelica

The FREE XRGLibrary for modeling pressure loss and heat transfer of thermo-hydraulic components.

The Modelica library for transient power plant simulation.

XRG Application

XRG-Applications at a glance – efficient and powerful

Independent XRG applications, which can be used e.g. to increase the efficiency of models, to visualize results or to optimize systems.

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The Excel COM add-in for Functional-Mock-up-Unit (FMU) simulations and Dymola remote control.

Mathematical Parameter Optimization of Modelica Models

The innovative simulation tool for smart heat exchanger networks


Modelica Association

Modelica is one of the most important tools of our daily work. Therefore we actively contribute to develop and improve this tool.

Network of Family-Friendly Companies

XRG Simulation offers all of its employees the opportunity to balance work and family life. To make that work we rely on professional consultants.

We work closely with our partners