Abstract
Rapid growth of digital technology has facilitated industry progress, while industrial CO2 emissions are a major issue to be confronted. Digital Twins can play a major role but so far, they have no common norms, standards, or models yet. On top of this, the majority in literature uses the term Digital Twin, but only a few sources are really describing a Digital Twin, whereby it describes a bidirectional data transfer between the real model and the software model. Until now, Digital Twins focus on a single area of interest and do not consider the broader challenge of CO2 emissions. This study gives an example how to predict CO2 emissions for the operation of a production site by merging three Digital Models (Building, Production, and Energy Model). This approach demonstrates how CO2 emissions can be reduced during operation by selecting an appropriate production scenario and a specific energy source mix in the planning phase. The core task is to enable energy demand reduction by simulating different production scenarios and to identify the best energy source mix with the resulting CO2 emissions visible. The case study shows that by merging the three Digital Models, it is possible to create an overview of the expected CO2 emissions which can be used as a basis for further developments for Digital Twins. However, the case study has shown that only manual data exchange between the models was possible. Further developments enabling a common data exchange and the connection of the interdisciplinary digital models through a shared language are urgently needed to speed up developments for Digital Twins and shape an interdisciplinary industry approach.
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All authors have read and agreed to the published version of the manuscript and declare no conflict of interest.
The authors wish to express their sincere gratitude and appreciation to Falkenstein Projektmanagement GmbH for the Building Model and due to all members of the project team from Siemens AG for their valuable contribution: Andreas Trautmann, Andy Manley, Bernd Koch, Christian Falkenstein, Christoph Falk, Christoph Neher, Martin Kautz, Mathias Langhans, Nicolas Albornoz, Ralph Bauknecht, Ralph Brecht (in alphabetic order).
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Deininger, I. et al. (2024). Using Digital Models to Decarbonize a Production Site: A Case Study of Connecting the Building Model, Production Model and Energy Model. In: Fottner, J., NĂ¼bel, K., Matt, D. (eds) Construction Logistics, Equipment, and Robotics. CLEaR 2023. Lecture Notes in Civil Engineering, vol 390. Springer, Cham. https://doi.org/10.1007/978-3-031-44021-2_8
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DOI: https://doi.org/10.1007/978-3-031-44021-2_8
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