Conference Paper

Proceedings of Building Simulation 2021: 17th Conference of IBPSA

Digital Twin Design with on-line calibration for HVAC systems in buildings

Christian Vering ¹, Sebastian Borges ¹, Daniel Coakley ², Hannah Kruetzfeldt ¹, Philipp Mehrfeld ¹, Dirk Müller ^1
1 RWTH Aachen University, Germany
² MERCE Mitsubishi, Scotland

DOI: https://doi.org/10.26868/25222708.2021.30117
Abstract: Digital twins of HVAC systems show great potential to increase efficiency through operational optimization and predictive maintenance of real processes. We introduce an IoT-based framework that allows the communication between a heat pump and its digital twin as well as further clients like a time series data base and supervisor dashboard. The obtained data is used to calibrate on-line the digital twin. Recalibration is performed to continuously improve the results. Using RMSE for evaluation and system supply temperature as target variable, we meet experimental data with RMSE<1 K automatically within a monthly time horizon.
Keywords: Application of digital twins, cloud control, modeling and calibration
Pages: 2938 - 2945
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