We are experts for thermal, process and energy systems ‒ experienced in modelling and simulation of various technologies like heat pumps, cooling circuits, chemical reactors and batteries.Learn more
We support you with our knowledge and experience in system simulation, thermodynamics, control theory and mathematical optimization to solve demanding tasks and improve your products, processes, and systems.
We build a digital twin of your system so you can investigate and predict its behavior much easier (and much cheaper) than in reality.
It’s always good to backup the simulations with real measurement data. We build up and operate test stands accordingly to your specific demands.
We help you to develop robust and efficient controls for your system. Starting from basic concepts up to Hardware-in-the-Loop testing.
We use simulation, mathematical optimization and engineering knowledge to increase the energy efficiency of complex systems.
...and if we couldn't find one, we made it ourselves.
Emerson develops components and systems for supermarket refrigeration. Due to its environmental benefits CO2 as refrigerant is becoming more and more important in this sector. But compared to traditional refrigerants the thermodynamic properties of CO2 are totally different (high pressures and low critical temperature). Designing efficient CO2 cycles is challenging and there are many different cycle concepts proposed. Together with Emerson experts we have developed simulation models for a number of different concepts and run a simulation study to compare the seasonal efficiency of these cycles.
Eric Winandy et al.: Assessment of the seasonal efficiency of different CO2 booster architectures for different climates. DKV Jahrestagung, 2018
In their development process of heat pump controllers Vaillant has established a comprehensive testing strategy. Before they connect developed controllers to real heat pumps in their lab, they are connected to virtual heat pumps running on special real time simulation hardware and software from dSPACE. Crucial ingredients for this so-called Hardware-in-the-Loop (HiL) tests are simulation models of the heat pumps, that are accurate, fast and robust. We developed these models for Vaillant using our Modelica library TIL and set up a reliable tool chain to export these models to dSPACE platform. The models include a full dynamic physical model of the refrigeration cycle. It can handle switching of refrigerant flow direction caused by different modes for defrost, heating and cooling. Vaillant is now able to detect issues in control code much earlier and saves with this virtual testing a considerable amount of expensive lab experiments.
Manuel Gräber et al.: Physical Modeling of Heat Pumps for Hardware-in-the-Loop Testing. 13th International Modelica Conference, 2019
Together with Volkswagen we have developed simulation models for battery thermal management systems. Geometry of cooling plates and its flow patterns are taken into account by discretization with finite volumes. Compared to detailed CFD simulations the spatial resolution is much lower but still high enough to achieve confident results. This approach reduces the computation time dramatically enabling usage of numerical optimization algorithms or large-scale simulation studies. Cooling systems can be designed with less pressure loss and increased energy efficiency.
Robert Wendland et al.: Dynamic Optimization of Thermal Management and Cooling Plate Design for Battery Systems. 27th Aachen Colloquium Automobile and Engine Technology, 2018
Whether you are looking for sophisticated models, ready-to-use simulators, or turnkey reports, you will get the results you really need for your business.
We create tailored models in the open language standard Modelica, which you can integrate into your existing model libraries.
We provide stand-alone simulators via the standardized interface FMI, so you can use them in numerous tools (e.g. Cloud, Excel, Simulink, ...).
Informative reports with key simulation results and model fundamentals - the full-service package!