COSMARD: The Code System for Management of JPDR Decommissioning

Yanagihara, Satoshi

doi:10.1080/18811248.1993.9734563

Cited by 9 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Digital transformation can transcend automation and optimisation, changes in process paradigms, implications for product and service improvements and redefinitions of business models. One of the early cases of digital transformation of decommissioning identified in the literature is that of a Japanese Power Demonstration Reactor (JPDR) initially developed for UNIX and then extended to the Windows Operating System (Yanagihara, 1993; Yanagihara et al , 2001). It was termed COSMARD (Code System for Management of JPDR Decommissioning) and makes use of tree-structured data processing algorithms reflecting the work breakdown structure (WBS) of typical decommissioning processes including manpower needs of both manual and remote dismantling tasks.…”

Section: Previous/related Workmentioning

confidence: 99%

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

Oti

Farrell

Abanda

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Section: Previous/related Workmentioning

confidence: 99%

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

Oti

Farrell

Abanda

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Articles emphasized systematic and controlled PM for to-the-plan execution in projects where investors were seeking certainty and controllability from PM, with the focus on controlling projects and their impacts on the society. Pow sector articles research content related extensively to decommissioning of old nuclear facilities (Yanagihara et al, 2001a;Yanagihara et al, 2001b;Yanagihara, 1993;Krause, 2008). This content is strongly affected by the post-Chernobyl era, where the focus has been on deconstruction of nuclear energy systems rather than new systems construction.…”

Section: Pow -Power and Energy Energy Production And Energy Systemsmentioning

confidence: 99%

Is there only one way of project management theorizing, or are there multiple sector-specific project management domains?

Artto¹,

Gemünden

Walker

et al. 2017

IJMPB

View full text Add to dashboard Cite

show abstract

“…In the past thirty years, several decommissioning projects have been completed, and related project-management systems have been developed. A database for dismantling and evaluating workload, radiation exposure dose, waste weight, as well as schedules of the dismantling processes were managed by the Code System for Management of Decommissioning (COSMARD) [3] for the Japan Demonstration Power Reactor (JPDR). Since then, research institutes in Japan and Norway have developed a Decommissioning Engineering Support System (DEXUS) for identifying an appropriate dismantling plan for a decommissioning project [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Precise Quantity of Decommissioning Waste by Cutting Virtual 3D Models of Large Equipment

Seki¹,

Imamura²,

Nagase³

2020

View full text Add to dashboard Cite

Equipment and piping components contaminated by radioactive materials and/or containing low-level irradiated waste must be cut, segmented, and packed into waste containers. Workers need to avoid overexposure to radiation in dismantling environments, and the number of waste containers for the pieces of equipment and piping components needs to be minimized. Thus, we developed an automatic planning method for virtually cutting 3D equipment with limitations on container size, radioactivity, weight, and dose rate. Cutting sequence data was used to formulate different cutting-work procedures, generate cut objects, and calculate the exposure during disassembling work. By calculating the required cutting length and dose-rate distribution in working environments for various cutting sequences of large equipment, the developed system is expected to aid in the planning of decommissioning. To utilize systems engineering in conjunction with elemental technologies, the following problems need to be solved; both weight and volume of the waste need to be controlled so that radioactive waste for decommissioning nuclear power plants is traceable. Identifying segmented equipment from a 3D model is key to calculating the number of volumetric segmented fragments and required number of containers. To evaluate exposure and amount of waste, we developed an automatic planning method for virtually cutting 3D equipment objects given constraints. Cutting sequence data was used to formulate different cutting workflows, generate cut objects, and calculate the exposure dose from disassembling work.

show abstract

COSMARD: The Code System for Management of JPDR Decommissioning

Cited by 9 publications

References 2 publications

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

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

Is there only one way of project management theorizing, or are there multiple sector-specific project management domains?

Evaluating Precise Quantity of Decommissioning Waste by Cutting Virtual 3D Models of Large Equipment

Contact Info

Product

Resources

About