Simulation of Energy Processes

Simulation Solar
Figure 1: Modeling of a combined ORC/heat pump process for the use of solar energy.

In research and teaching, the Chair of Thermodynamics deals with the simulation of innovative energy technology processes. In this context, simulation environments developed in-house on the basis of tools such as Matlab, Simulink, or simply MS Excel are predominantly used - usually, the focus is on an in-depth scientific understanding of new processes or process variants, not on the optimization of technical processes with commercially available tools.

Simulation Warmespeicher
Figure 2: Modeling of a cryogenic heat storage

Examples for the simulation of energy processes are investigations on the uncertainty of calculations for natural gas liquefaction, processes for the utilization of solar energy by reversible operation of heat pumps, the utilization of waste heat flows of combustion engines, or the storage of heat at cryogenic temperatures as part of storage power plants [1-7]. The Chair of Thermodynamics has a unique selling point in the field of process simulation whenever it succeeds in incorporating competences from the field of highly accurate equations of state to calculate properties into work on the simulation of energy technology processes.


[1] F. Dauber und R. Span, Comput. Electr. Eng. 37, 15-21 (2012).

[2] F. Dauber und R. Span, Applied Energy 97, 822-827 (2012).

[3] J. Wiedemann und R. Span, Energy Procedia 61, 2658-2661 (2014).

[4] S. Schimpf und R. Span, Energy Conversion and Management 102, 151-160 (2015).

[5] J. Wiedemann und R. Span, Energy Procedia 88, 531 – 536 (2016).

[6] L. Hüttermann und R. Span, Energy Procedia 143, 693–698 (2017).

[7] L. Hüttermann und R. Span, Energy 174, 236-245 (2019).