Slide 1

...is a brand new open source simulation tool that aims to make building and district simulations accessible to everyone. For this purpose, there are extensive modelling tools and parameterisation checks based on false colours. This means that simulations can not only be parameterised at lightning speed, but also that excellent quality management can always be comprehensively guaranteed. In addition, BIM data can be easily imported in the future and parameterised into simulation-capable models in no time at all.

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Slide 1
Modern solver technology

SIM-VICUS is a modern building simulation platform for the dynamic evaluation of the energy efficiency of buildings and district heating networks. It has been specially developed to be able to efficiently calculate particularly complex and large buildings as well as to be able to manage the necessary amount of data. At the same time, the integrated physical models have a high level of detail, which is useful for the dynamic description of the building. In particular, the heavy construction in the European area is taken into account.

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Slide 2

With SIM-VICUS all parameters can be displayed and checked dynamically via the 3D interface. This allows the user to maintain an overview within the project and efficiently investigate the correctness of the data. This takes the quality management of data integrity to a new level.

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Slide 3
Optimized 3D-Visualization

In SIM-VICUS, the entire paramatrisation is carried out using 3D building data. This means, on the one hand, that the entire building is graphically modelled and created on the basis of 3D interior surfaces and, on the other hand, that parameters are assigned directly to the object (e.g. underfloor heating) and these are also graphically visualised using false colours.

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Slide 3
Lightning fast building modeling

SIM-VICUS is currently capable of importing IDF files and IFC files and developing simulatable models from architectural models at lightning speed.
In addition, rooms, roofs and complex shapes can be created via extensive parameterization dialogs.
For district heating networks, GIS data can be imported in geoJSON format (e.g. from QGIS) and turned into a detailled thermo-hydraulic network model.

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News

  • Video des Workshop auf der BauSIM 2022 in Weimar

    Live Vorstellung der Features von SIM-VICUS auf der BauSIM 2022 in Weimar am 22.09.2022. Leider fehlen die ersten 10 Minuten der Aufzeichung.

  • SimQuality & SIM-VICUS Workshop 8. Juni

    8. Juni 2022 SimQuality & SIM-VICUS Workshop   Workshop   Wir benötigen eine neue Art zu Planen, um die Ziele der Energiewende im Gebäudesektor zu erreichen. Dafür schafft SimQuality Vertrauen durch transparente Qualitätssicherung   Vor den aktuellen Herausforderungen wird es immer wichtiger, im Gebäudebetrieb eine maximale Reduktion der CO2-Emissionen zu minimalen Kosten zu realisieren und fossile Verbrennungsprozesse vollständig zu verdrängen. Die Gebäude werden dabei eine aktive Rolle spielen, sei es als Energieerzeuger oder Energiespeicher im Quartier. Das Projekt SimQuality (FKZ 03ET1570) fördert den Einsatz von simulationsgestützen Planungswerkzeugen im Bauwesen, insbesondere von Simulationswerkzeugen zur energetischen Bewertung von Gebäuden und setzt dafür neue…

  • Onboarding Day (in german)

    Building on several years of model and computational core development at the Institute of Building Climatology (e.g. DELPHIN, THERAKLES), a new building energy simulation called SIM-VICUS has been under development since mid-2020. It is a freely available open-source development. The NANDRAD solver, which was also developed at IBK, serves as the computational core for the building energy simulation. Its physical model and numerical solution method (Finite Volume Method for building structures) takes into account the heavy construction type in Europe in particular. As a result, dynamic effects (e.g. load shifts) are mapped very well, which are decisive for the integration…


SIM-VICUS compared to other Tools

FeatureIDA ICEModelicaEnergyPlusTRNSYS
Multi-zone simulation
Hourly/Sub-hourly time steps
Error controlled integration (dynamically adjusted time step sizes)
BIM/Geometry import
3D Visualization of model /
Material library /
Thermal bridge modellingSimplifiedSimplifiedSimplifiedIndirectSimplified
Visual interface
Run-time data exchange with other tools e.g. (MATLAB, CFD tools, EES, VBA) via FMI via FMI (*)via FMI (**)via FMI (**)
Open source code / (***) (****)
Thermo-hydraulic network model
Supported Operating Systems: Windows, MacOS, Linux||||||||||
Comparison SIM-VICUS and other simulation tools

(*) Depends on Modelica development environment
(**) Only FMI for Co-Simulation, version 1.0
(***) Some Modelica libraries are open-source, simulation environments SimulationX/Dymola are closed-source
(****) Earlier TRNSYS Releases have been made available as open-source


Modern Solver Technology and Efficient Code Base

SIM-VICUS is a modern building simulation platform for the dynamic evaluation of the energy efficiency of a building. It has been specially developed to be able to efficiently calculate particularly complex and large buildings as well as to be able to manage the necessary amount of data. At the same time, the integrated physical models have a high level of detail, which is useful for the dynamic description of the building. In particular, the heavy construction in the European area is taken into account.
The SIM-VICUS solver is optimized especially for such building simulation models and is state of the art with respect to the numerical methods used.
Similarly, the SIM-VICUS user interface is developed using resource efficient C++ code – the software runs smoothly even on 10 year old notebooks/Macs (no need to purchase expensive workstation PCs).


Optimized 3D-Visualization

In SIM-VICUS, the entire paramatrisation is carried out using 3D building data. This means, on the one hand, that the entire building is graphically modelled and created on the basis of 3D interior surfaces and, on the other hand, that parameters are assigned directly to the object (e.g. underfloor heating) and these are also graphically visualised using false colors.


Excellent Quality Management

With SIM-VICUS all parameters can be displayed and checked dynamically via the 3D interface. This allows the user to maintain an overview within the project and efficiently ensure the correctness of the input data. This takes the quality management of data integrity to a new level.


Lightning fast building modeling

SIM-VICUS is currently capable of importing IDF files and IFC files and developing simulatable models from architectural models at lightning speed.
In addition, rooms, roofs and complex shapes can be created via extensive parameterization dialogs.
This means that three-dimensional simulation models can be created in no time at all and are ready for further use.


Advanced district modeling

SIM-VICUS includes support for thermal-hydraulic pipe networks and associated network components. One may describe entire district networks (and, for example, import necessary geometry from GIS sources). Further, it is possible to have individiual detailed building models with internal hydraulic networks (heating systems etc.) interfaced directly with area networks and solve these district and building models together.


FMI Compatibility

In addition to internal plant and control models, SIM-VICUS also supports run-time coupled simulation based on the Functional Mockup Interface (FMI) Standard 2.0. This allows the simulation of detailed plant systems and components provided as FMUs by specialized programs (e.g. Modelica) to be combined with the SIM-VICUS building simulation.

Modern User Interface with dark mode

SIM-VICUS Building Simulation 3D GUI dark mode
SIM-VICUS GUI dark mode
SIM-VICUS Building Simulation 3D GUI bright mode
SIM-VICUS GUI bright mode