Paper Conference

Proceedings of BSO Conference 2022: 6th Conference of IBPSA-England


RoofKIT – Building simulation in sustainable housing at the Solar Decathlon Europe 21/22

Nicolas Carbonare 1, Moritz Bühler 2, Jens Pfafferott 2, Andreas Wagner 1
1 Building physics group, Karlsruhe Institute for Technology, Karlsruhe, Germany
2 Institute of Sustainable Energy Systems, Offenburg University of Applied Sciences, Offenburg, Germany

Abstract: The contribution of the RoofKIT student team to the SDE 21/22 competition is the extension of an existing caf ́e in Wuppertal, Germany, to create new functions and living space for the building with simultaneous energetic upgrading. A demonstration unit is built representing a small cut-out of this extension. The developed energy concept was thoroughly simulated by the student team in seminars using Modelica. The system uses mainly solar energy via PVT collectors as the heat source for a brine-water heat pump (space heating and hot water). Energy storage (thermal and electrical) is installed to decouple generation and con- sumption. Simulation results confirm that carbon neutrality is achieved for the building operation, con- suming and generating around 60 kWh/m2a.
Keywords: Building simulation, Educational context, Decision-making, Real implementation, Modelica