Decisions on nuclear decommissioning strategies: Historical review

Suh, Yong-Suk; Hornibrook, Carol; Yim, Man‐Sung

doi:10.1016/j.pnucene.2018.02.001

Cited by 30 publications

(19 citation statements)

References 7 publications

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“…Timeframes for TRIGA 2000 research reactor decommissioning are adapted to the activities in decommissioning which involve Planning, Characterization, Decontamination, Dismantling, and Safe Storage [4]. In planning for TRIGA 2000 decommissioning, a decision-making process is carried out to determine the strategies, methods, and techniques selected for decommissioning.…”

Section: Safety Assessment Frameworkmentioning

confidence: 99%

“…The main focuses in decommissioning process of NPP are safety, radioactive waste, and energy security. These lead to an increase in the strengthening of facility, replacement, or shutdown, scheduling the decommissioning, dismantling strategies, and radioactive waste management [4]. Aside from those, the increasing cost of strengthening the facility due to increased safety requirements is also confronted by the operators [1,5].…”

Section: Introduction mentioning

confidence: 99%

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Risk Assessment on the Decommissioning Stage of Indonesian Triga 2000 Research Reactor

Tyas

Deswandri²,

Intaningrum³

et al. 2022

Tri Dasa Mega

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Decommissioning is the final stage of a nuclear reactor. In preparing the decommissioning plan, one of the important elements that need to be considered is safety assessment. During decommissioning, there are many complex tasks to be done where the radiological and non-radiological hazards arise and can significantly affect not only the workers but also the general public and the environment. Indonesia has no experience with nuclear reactor decommissioning, so it is necessary to study various experiences of decommissioning activities in the world. This study proposes a framework to implement the safety assessment on the decommissioning of the TRIGA 2000 research reactor. The framework was developed on desk-based research and analysis. The proposed framework involves the facility and decommissioning activities, hazard identification, hazard analysis, hazard evaluation, hazard or risk control, and independent review.

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Section: Safety Assessment Frameworkmentioning

confidence: 99%

Section: Introduction mentioning

confidence: 99%

Risk Assessment on the Decommissioning Stage of Indonesian Triga 2000 Research Reactor

Tyas

Deswandri²,

Intaningrum³

et al. 2022

Tri Dasa Mega

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“…This can be seen in the Greifswald project (Bond et al, 2004), where decommissioning activities broadly included: (i) post-operational (operation of all systems relevant to storage, removal, inactive system dismantling and decontamination), (ii) dismantling (contaminated and potentially contaminated systems), and (iii) site restoration (dismantling, decontamination and demolition of remaining systems/structures and site restoration/adaptation). The definitions of these phases and constituent activities and strategies for decommissioning may vary from one region, authority or project to another depending on legal, technical, economic and radiological considerations (Cumo, 2002;Suh et al, 2018). In the UK, a vital activity that should precede the technical decommissioning works is the Environmental Impact Assessment (EIA) which includes a specified period (not less than 30 days) of public consultation (Bond et al, 2004).…”

Section: Decommissioning Processesmentioning

confidence: 99%

A BIM-driven framework for integrating rules and regulations in the decommissioning of nuclear power plants

Oti

Farrell

Abanda

et al. 2021

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Purpose The relatively low capital cost and contributions to mitigating global warming have favoured the continuous construction and operation of nuclear power plants (NPPs) across the world. One critical phase in the operation of nuclear plants for ensuring the safety and security of radioactive products and by-products is decommissioning. With the advent of digital twinning in the building information modelling (BIM) methodology, efficiency and safety can be improved from context-focus access to regulations pertaining to demolition of structures and the cleaning-up of radioactivity inherent in nuclear stations. The purpose of this study, therefore, is to propose a BIM-driven framework to achieve a more regulation-aware and safer decommissioning of nuclear power plants. Design/methodology/approach The framework considers task requirements, and landscape and environmental factors in modelling demolition scenarios that characterise decommissioning processes. The framework integrates decommissioning rules/regulations in a BIM linked non-structured query system to model items and decommissioning tasks, which are implemented based on context-focussed retrieval of decommissioning rules and regulations. The concept’s efficacy is demonstrated using example cases of digitalised NPPs. Findings This approach contributes to enhancing improvements in nuclear plant decommissioning with potential for appropriate activity sequencing, risk reduction and ensuring safety. Originality/value A BIM-driven framework hinged on querying non-structured databases to provide context-focussed access to nuclear rules and regulations and to aiding decommissioning is new.

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“…The decommissioning work included removal of platform and associated facilities, plugging and removal of seafloor obstacles. Suh et al 62 surveyed 162 nuclear decommissioning cases. The major factors affecting safety in decommissioning operations were plant’s operating history and duration, decommissioning funding and experience, waste facilities.…”

Section: Literature Review For What To Do With Tco Model For Sustainmentmentioning

confidence: 99%

Simulation analysis of engineering business process in asset sustainment activities based on total cost of ownership

Caporaso²

2021

International Journal of Engineering Business Management

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Major assets such as buildings, infrastructure and defence systems are long term investments that require many outsourced sustainment activities to maintain satisfactory performances over their service life. When multiplied by the number of years that the sustainment is planned to be undertaken, the contracting cost is high. Many business processes are established to govern these asset sustainment activities and eventually become the source of inefficiency. This paper analyses the performance of these processes using a performance driven approach. Combined with input data of requests for engineering change in similar assets, this paper evaluates a new business process redesigned from an existing process to achieve significant savings in total cost of ownership as well as improving other non-financial performance indicators.

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Decisions on nuclear decommissioning strategies: Historical review

Cited by 30 publications

References 7 publications

Risk Assessment on the Decommissioning Stage of Indonesian Triga 2000 Research Reactor

Risk Assessment on the Decommissioning Stage of Indonesian Triga 2000 Research Reactor

A BIM-driven framework for integrating rules and regulations in the decommissioning of nuclear power plants

Simulation analysis of engineering business process in asset sustainment activities based on total cost of ownership

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