Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Towards an IFC-Modelica Tool Facilitating Model Complexity Selection for Building Energy Simulation

Glenn Reynders1,2, Ando Andriamamonjy1,3, Ralf Klein3, Dirk Saelens1,2
1KU Leuven, Department of Civil Engineering, Building Physics Section, Kasteelpark Arenberg 40 – box 2447, BE-3001 Heverlee, Belgium
2EnergyVille, Thor Park 8310, BE-3600 Genk, Belgium
3 KU Leuven, Technology Cluster Construction, Technology Campus Ghent, Gebroeders De Smetstraat 1, BE-9000 Ghent, Belgium

Abstract: This paper presents a novel tool chain that enables a direct coupling between building information models (BIM) and building energy simulation (BES) models developed in Modelica. In contrast to similar tools found in literature, the novel tool chain is a Python implementation that provides a direct coupling between BIM and Modelica and focuses on the thermal modelling of building envelopes. The main innovation in this tool chain is that it provides increased user flexibility by facilitating a BES model generation with different levels of complexity, which is demonstrated on a real-life experiment. In this case study, significant savings in simulation time were obtained without significantly affecting the model accuracy in terms of predicting energy use and load-duration curves, if the aggregation of zones reflects the control strategy for space heating.
Pages: 2257 - 2266