Browsing Research Output by Author "11858176 - Cilliers, Anthonie Christoffel"
Now showing items 1-9 of 9
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Adapting plant measurement data to improve hardware fault detection performance in pressurised water reactors
Cilliers, Anthonie Christoffel; Mulder, Eben Johan (Elsevier, 2012)With the fairly recent adoption of digital control and instrumentation systems in the nuclear industry a lot of research now focus on the development expert fault identification systems. The fault identification systems ... -
Benchmarking an expert fault detection and diagnostic system on the Three Mile Island accident event sequence
Cilliers, A.C. (Elsevier, 2013)Early fault identification systems enable detecting and diagnosing early onset faults or fault causes which allow maintenance planning on the equipment showing signs of deterioration or failure. This includes valve and ... -
Continuous machine learning for abnormality identification to aid condition-based maintenance in nuclear power plant
Ayo-Imoru, R.M.; Cilliers, A.C. (Elsevier, 2018)A condition-based maintenance (CBM) regime in a nuclear plant will result in eliminating unnecessary maintenance cost without jeopardizing the safety of the plant. The foundation of a good CBM regime is an accurate and ... -
Correlating hardware fault detection information from distributed control systems to isolate and diagnose a fault in pressurised water reactors
Cilliers, Anthonie Christoffel (Elsevier, 2013)Early fault identification systems enable detecting and diagnosing early onset faults or fault causes which allow maintenance planning on the equipment showing signs of deterioration or failure. This includes valve and ... -
Fault detection and characterisation in pressurised water reactors using real-time simulations
Cilliers, A.C.; Nicholls, D.; Helberg, A.S.J. (Elsevier, 2011)The use of real-time plant simulators running in parallel with a nuclear plant to predict the control system behaviour and highlighting unexpected plant behaviour is presented. The study is performed on a 910 MW Generation ... -
High-temperature thermal plasma treatment of monazite followed by aqueous digestion
Kemp, D.; Cilliers, A.C. (SAIMM, 2016)Monazite is a chemically inert, radioactive phosphate mineral that contains the light rare earth metals (Ce, La, Nd, Pr and Y), thorium and uranium. A new process, which improves the extraction efficiency of monazite, ... -
Hybrid nuclear plant simulator design requirements to enable dynamic diagnostics of plant operations
Ayo-Imoru, R.M.; Cilliers, A.C. (Elsevier, 2017)With nuclear plant full scope simulator technology reaching maturity, the possibility of using its capabilities in expert systems such as online plant diagnostics has become a reality. The effectiveness of plant diagnostics ... -
Preliminary economic evaluation of thorium based fuels in PWRs
Du Toit, M.H.; Cilliers, A.C. (Taylor & Francis, 2014)Many studies have proven that thorium-based fuel cycles are more expensive than current uranium fuel cycles, which is confirmed in this paper as well. This research, however, goes beyond the conventional nuclear ... -
A survey of the state of condition-based maintenance (CBM) in the nuclear power industry
Ayo-Imoru, R.M.; Cilliers, A.C. (Elsevier, 2018)Condition-based maintenance (CBM) involves undertaking maintenance activities based on the health of the system. CBM has found useful applications in many industries. This paper presents a survey on the state of condition-based ...