BESMod - A Modelica Library providing Building Energy System Modules

Towards the analysis and optimization of a coupled building energy sector, various component model libraries for hydraulic, ventilation, electrical, control, domains exist. However, no uniform open-source framework to couple these in holistic system simulation exists. Thus, we present BESMod, an Modelica library, providing modular approach towards domain-coupled simulations. BESMod relies on existing specialized underlying physics. For complex simulations, user-friendly parameterization, consistent interfaces, precalculated KPIs debugging options are applied. The library is available at www.github.com/RWTH-EBC/BESMod. This paper motivates lays out interaction with general approach. An exemplary use case demonstrates applicability BESMod. Concluding, motivate future development options.