AixLib - An Open-Source Modelica Library within the IEA-EBC Annex60 Framework

AixLib is a Modelica model library with focus on modeling the dynamic behavior of buildings, HVAC equipment and distribution networks to enable integrated analyses of energy systems on the scales from single building to city district. The library is available at www.github.com/RWTH-EBC/AixLib. In this paper, we present the library and its integration within the IEA Annex 60. Possible applications are demonstrated using two use cases for the controls of a single building and for the heat demand of a city district. The paper concludes in a discussion of typical applications for AixLib and which developments we plan for the future.