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http://dx.doi.org/10.9719/EEG.2017.50.5.363

Application of Cyber Physical System (CPS) for Risk Management of a CO2 Storage Site  

Jeong, Jina (Korea Institute of Geoscience and Mineral Resources)
Park, Eungyu (Department of Geology, Kyungpook National University)
Jun, Seong-Chun (Geogreen 21, Inc.)
Kim, Hyun-Jun (BK21 Plus Eco-Leader Education Center, Korea University)
Yun, Seong-Taek (Earth and Environmental Sciences, Korea University)
Publication Information
Economic and Environmental Geology / v.50, no.5, 2017 , pp. 363-373 More about this Journal
Abstract
In the present study, adaptability of cyber-physical system (CPS) for risk management of $CO_2$ storage site is examined and the subagging regression (SBR) method is proposed as a key component of the cyber-twin to estimate the risk due to potential $CO_2$ leakage. For these purposes, $CO_2$ concentration data monitored from a controlled $CO_2$ release field experiment is employed to validate the potentialities of the SBR method. From the validation study, it is found that the SBR method has robust estimation capability by showing minimal influence from anomalous measurements, and makes stable and sound predictions for the forthcoming $CO_2$ concentration trend. In addition, the method is found to be well suited as a tool of operational risk assessment based on real-time monitoring data due to the computational efficiency. The overall results suggest that the SBR method has potential to be an important component comprising the cyber twin of CPS for risk management of $CO_2$ storage site.
Keywords
Cyber-Physical System (CPS); $CO_2$ storage site; Risk management; cyber-twin; Subagging regression method;
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