training for decommissioning author – andy dietzold – ukaea presenter – david reay - ukaea
TRANSCRIPT
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Training for Decommissioning
Author – Andy Dietzold – UKAEA
Presenter – David Reay - UKAEA
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Context
• Plants entering decommissioning face many challenges
• One of the most important is the challenge of training for decommissioning
• This is important because:– The facility operators and management have spent many years
successfully operating the facility– The facility management arrangements are geared to operation– Decommissioning will include non-nuclear specialists and other
stakeholders– Other skills are needed to decommission successfully.
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What changes in Decommissioning?
• The facility is shutdown and in the case of a Nuclear Power Plant, the main radiological hazard is removed.
• There is a period where there is lots of planning but little dismantling.
• The radiological hazard changes from a large inventory to a small one which is more mobile during dismantling
• Additional specialist skills will be needed to complete the decommissioning
• There is more waste to deal with• A new set of managerial skills are needed which are
more focussed on projects and tasks• The harm potential swings towards an increase in
conventional hazard.
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Operation Final defuelling Planning Characterization Support services decommissioning
Waste Management system
Final decommissioning
Training needs change and develop to suit the decommissioning needs
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The hazard balance
Operations Decommissioning
Radiological safety
Conventional safety
Training and education supports this change in the balance
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Who needs training?
• In short, everyone!!• Operators• Management• Support staff• Financiers• Regulators• Itinerant specialists• Local population
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What training do they need?
• Operators need to understand the swing in risks and how they need to operate to be radiologically and conventionally safe
• Operators need also specialised skills in waste management and conditioning
• Operators need to know how to manage emergencies which are different in decommissioning.
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Management & Support Staff
• Managers need to have increase project and programme management skills
• Managers need to understand what specialist skills they need to support the decommissioning and how best to deploy it
• Managers need to have strategic skills to support the plan!
• Support staff need training in the different approaches and methodologies for decommissioning
• Support staff need training in ideas
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Financers, Regulators etc
• Financers understand money – they might not understand decommissioning so their training and education is vital to reduce decommissioning project risk.
• Regulators might be the same as they will understand operation but may be less comfortable with decommissioning risk and plans
• Specialists will know how to demolish non-nuclear structures but may not understand the nuclear context
• Local population will be interested in understanding the decommissioning and will see its effects (such as more traffic etc) and will need educating to understand what the plant is doing
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How to do it?
• Training can take many forms and experience has shown us that the following are most appropriate:– Specialist courses– Mock-ups – Videos– Seminars
• The key to training is to make it relevant and up to date
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UKAEA Experience
• UKAEA has decommissioned many facilities at its sites in Dounreay, Windscale, Harwell and Winfrith in the UK.
• We have faced all of the challenges previously described and have developed many training methods for ensuring the challenges are met safely and effectively.
• We have developed courses for specialised skills such as safety cases which can be deployed to support any decommissioning site.
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World leaders in decommissioning and waste management