Feedback from FaSa Project - International Atomic Energy ... · PDF fileIDN 2011 - Feedback from FaSa Project 01 - 03 November 2011 11 Consideration of End State ... FDP y Final Clean-

IAEA International Atomic Energy Agency

The 5th Meeting of the International Decommissioning Network (IDN)

01 – 03 November 2011

International Atomic Energy Agency, Vienna

Feedback from FaSa Project

Joerg Kaulard, Chairman of the FaSa project

Vladan Ljubenov, IAEA scientific secretary

IAEA

Content

• Background

• Objectives of the FaSa Project

• Conduct of the FaSa Project

• Some Results

• Remaining Work

01 - 03 November 2011 IDN 2011 - Feedback from FaSa Project 2

IAEA

Safety Aspects in Decommissioning

• Decommissioning is a safety driven activity

• Purpose is to reduce or eliminate hazards and risks

associated with a facility which is not in use or to enable

safe reuse of the building / site

• Hazards / risks due to • Presence of hazardous materials – nuclear and radioactive, non-

radioactive (toxic / chemical hazards)

• Performance of activities – cutting, decontamination, demolition,

heavy load transfer (radiation, chemical, industrial safety)

• External events (fire, flooding, earthquake)

• The IAEA creates documents and carries out programmes

on decommissioning because of this safety reason • The focus is on nuclear and radiation safety

IDN 2011 - Feedback from FaSa Project 3 01 - 03 November 2011

IAEA

Safety Requirements for Decommissioning

• The decommissioning plan

shall be supported by an

appropriate safety assessment

covering the planned

decommissioning activities and

abnormal events that may

occur during decommissioning.

• The assessment shall address

occupational exposures and

potential releases of radioactive

substances with resulting

exposure of the public.


IAEA

DeSa Project

• DeSa (2004 - 2007) - International Project on Evaluation

and Demonstration of Safety for Decommissioning of

Facilities Using Radioactive Material

• How to do the safety assessment for decommissioning?

• Safety assessment methodology for decommissioning

• Regulatory review procedure

• Recommendations on the application of the graded approach

• Reference safety assessments for three facilities (test cases) –

NPP, RR, small laboratory

• Outcomes: WS-G-5.2 (2009) and DeSa report (IAEA Safety

Report Series in 4 volumes, to be published in 2012)

• Indirect outcomes: several WS, methodology used by MS


IAEA

Safety Guide WS-G-5.2

• Safety assessment to

cover radiological and

non-radiological hazards,

planned activities and

unplanned events that

may occur

• Risks for workers, public

and the environment to

be assessed against the

prescribed safety criteria


IAEA

International IAEA Project on

„Use of SaFety assessment Results in Planning

and Implementation of DecommiSsioning of

Facilities Using Radioactive Material“

– FaSa Project –


IAEA

FaSa Project

• FaSa (2008 - 2011) - International Project on Use of Safety

Assessment Results in the Planning and Implementation of

Decommissioning

• Use of the results of SA in the planning and

implementation of decommissioning activities

• Relations SA-DP, SA-working level documentation

• Dynamic nature of the SA, update and evolution during

facility lifetime

• Regulatory review of the implementation

• Four complex test cases

• Outcome: FaSa report (IAEA Safety Report Series)


IAEA

Objectives of the FaSa Project

• Provide practical recommendations on

• the evolution of decommissioning related safety

assessment during the facility life time and

• the implementation of safety assessment results

during (planning and) conduct of decommissioning and

their review

PLANNING FOR DECOMMISSIONING CONDUCT OF

DECOMMISSIONING

TERMINATION

Design Commissioning Operation Shutdown Decommissioning Release from

regulatory

control

evolution implementation - how to do

- how to review

- how to do


IAEA


• Illustrate the FaSa and DeSa methodologies by

new test cases

• Continue the existing expert network on safety

assessments for decommissioning, launched with

DeSa


IAEA


• Relation between objectives - methodologies


Consideration of End State

DECOMMISSIONING

TERMINATION DECOMMISSIONING CONDUCT

DECOMMISSIONING PLANNING

Design Commissioning Operation Shutdown/

transition

Decommissioning Release from

regulatory control

High level more tangible

more detailed

Preliminary Safety Assessment

Safety Assessment

IMPLEMENTATION OF SAFETY

ASSESSMENT RESULTS

REVIEW OF IMPLEMENTATION, MODIFICATIONS AND EVOLUTIONS OF SAFETY ASSESSMENT RESULTS

EVOLUTION OF SAFETY ASSESSMENT

IAEA


• Relation between objectives – test cases



DECOMMISSIONING




transition


regulatory control


more detailed


Safety Assessment


ASSESSMENT RESULTS



NPP Test Case

- Overarching SA update of

- Safety Assessment - Safety Assessment

- “Implementation” of - “Implementation” of

SA results SA results

Mining and Minerals Processing

Facility Test Case

- all aspects of the NPP but relating in particular to

NORM hazards

- aspects of termination

Fuel Fabrication

Test Case

- due to normal conduct of

decommissioning, update of

- Safety Assessment

- “Implementation” of SA results

Research Reactor

Test Case

- due to changed end state,

update of

- Safety Assessment



DECOMMISSIONING




transition


regulatory control


more detailed


Safety Assessment


ASSESSMENT RESULTS



NPP Test Case

- Overarching SA update of

- Safety Assessment - Safety Assessment

- “Implementation” of - “Implementation” of

SA results SA results

Mining and Minerals Processing

Facility Test Case

- all aspects of the NPP but relating in particular to

NORM hazards

- aspects of termination

Fuel Fabrication

Test Case

- due to normal conduct of

decommissioning, update of

- Safety Assessment


Research Reactor

Test Case

- due to changed end state,

update of

- Safety Assessment


new: Compilation of D&D

SA practice in M & M

IAEA

Conduct of the FaSa Project

• Project plan


Planning

Conduct

Termination

Implementation of SA Results

Review of the Implementation ….

NPP Test Case

Research Reactor Test Case

Fuel Fabrication FacilityTest Case

Mining and Mineral Processing Facility Test Case

general

consideration

feedback

Step 1 Step 2 Step 3

2008 2009 2010 2011

review

all

aspects

IAEA

Conduct of the FaSa Project

• Key figures

• duration: November 2008 – November 2011

• 9 working groups with chairs and vice-chairs

• participants until now:

about 90 participants from about 30 countries

• ~45 participants “core group”

• 3 Annual FaSa Meetings with

• 17 presentations

• 19 posters and

• 16 additional WG meetings

(incl. site visits)


1st FaSa Posters Awards CeremonyVienna, December 2nd, 2010

IAEA

Some Results

Decommissioning Planning and Safety Aspects


Decommissioning planningDecommissioning

ConductTermination

Design

ConstructionOperation - Modification

Transition

PeriodDismantling

Facilitating

decommissioningStrategy selection

Final

DP

Preparation

Regulatory

review of

FDP

Physical and radiological inventory

Final

Clean-upRemediation

Justification of

design options

Justification of the strategy

Specific operating SA (PSR, etc)

Decommissioning SAR

Update of OLCs

Final

Decom.

Report

Implementation of the final

decommissioning plan

Detailed SA for dismantling operations

OLCs for dismantling activities

Evolution of the Decommissioning plan

Commissioning PSR, events Final Shutdown

Poco

PSR, events End-State

Phased approachDe

co

mm

iss

ion

ing

Pla

nn

ing

Safe

ty A

sp

ects

IAEA

Overarching

safety report

Safety

assessments

Operating

limits and

conditions

Working

procedures

Strategy

phased approach

schedule

- Safety functions

- Safety equipments

- Operating rules

- Operating instructions

Phase 1: Detailed SA

Phase 2: Preliminary SA

………….

Phase n: Optioneering stage

Complete

Working documents

Detailed SA

- SF Rev. 1

- SE Rev. 1

- OR Rev. 1

- OI Rev. 1

WD Rev.1

Implementation of the SA

at the next phase

Phase 2 in process

Preliminary SA

DSA Rev. 1

- SF Rev. 2

- SE Rev. 2

- OR Rev. 2

- OI Rev. 2

WD Rev.2

New data, events

Decom

mis

sio

nin

g

conduct

Imple

menta

tion o

f safe

ty

assessm

ent re

sults

Evolution of the safety assessments

PSA Rev. 1

Update of SA

Evolution and update of the working documents

Phase 1 in process

Some Results

Evolution of the Safety Assessment

• Evolution in project with a phased approach

• Concept of overarching safety assessment

• “Detailed SA” for Phase 1 to be available before granting 1st license

• prepared during “decommissioning planning”, i.e. operational phase

• typically delivered at the same time as the overarching safety report


De

co

.

pla

nnin

g

IAEA

• Evolution in project with a phased approach

Some Results



Submission of

DP

License issued

time

T0 T1 T2 T3

Phase 0 1 2 3

Duration

New data ND1 ND2 ND3

Status of

the SA

ISA1

ISA2

ISA3

ISA4

FSA1

PSA2

ISA3

ISA4

FSA2

PSA3

ISA4

FSA3

PSA4

FSA4

Implementation

IAEA

Some Results


• Evolution of Safety Assessment and related

studies for decommissioning


Initial

Preliminary

Final

Optioneering DetailedIntermediate

Safety

Assessment

Evolution

Studies process

IAEA

Some Results

Decommissioning Conduct & Implementation

Overarching

safety report

Safety

assessments

Operating

limits and

conditions

Working

procedures

Strategy

phased approach

schedule

- Safety functions

- Safety equipments

- Operating rules

- Operating instructions

Phase 1: Detailed SA

Phase 2: Preliminary SA

………….

Phase n: Optioneering stage

Complete

Working documents

Detailed SA

- SF Rev. 1

- SE Rev. 1

- OR Rev. 1

- OI Rev. 1

WD Rev.1

Implementation of the SA

at the next phase

Phase 2 in process

Preliminary SA

DSA Rev. 1

- SF Rev. 2

- SE Rev. 2

- OR Rev. 2

- OI Rev. 2

WD Rev.2

New data, events

De

com

mis

sio

nin

g

co

nd

uct

Imp

lem

enta

tion o

f sa

fety

assessm

ent re

sults

Evolution of the safety assessments

PSA Rev. 1

Update of SA

Evolution and update of the working documents

Phase 1 in process


De

co

.

pla

nnin

g

IAEA

Some Results

Basic Objectives of Implementation

Detailed Safety Assessment

Work Package Safety Controls Measures

Admin. SCM Engineered SCM

From

Decommissioning

Conduct

Concretize the

-Organisation of Work

-Safety Management

System

-Safety Parameters

-Training and Skills

-Emergency

Arrangements

Answer the questions

on SCCs:

-How to deliver the

safety function?

-How are the SSCs

integrated into the

facility?

During

Implementation


IAEA

Some Results

Decommissioning Termination

• Main approaches for safety assessments in IAEA

Member States


Approach Definition Release criteria

A SA is carried out by the operator

during decommissioning planning

using scenarios relevant to the

proposed end state.

Optimised site-specific

release criteria proposed by

the operator (usually Bq/g).

B SA is carried out by the operator

once the decommissioning has been

completed.

Generic criteria supplied by

the Regulatory Body (µSv/y or

Bq/g).

C Generic SA are carried out by the

regulator during the planning phase,

using generic release criteria. The

operator demonstrates that its end

state is consistent with these

assumptions.

Generic criteria supplied by

the Regulatory Body (µSv/y or

Bq/g).

IAEA

Some Results

Review of Implementation

• Topics addressed

• Review of the Implementation of Safety Assessment

Results in the Final Decommissioning Plan

• Review of the Implementation of Results from Changes

to the Safety Assessment

• Periodic Safety Reviews

No Periodic Safety Review needed, if safety assess-

ment is subject to review and revision as described in

the FaSa methodology

• Member State Experiences/Approaches to Reviewing

SA Implementation Results


IAEA

Remaining Project Activities

• During final Annual Meeting 2011 (21-25 Nov)

• final discussion of methodology chapter and completion

of main drafting of related chapters

• consistency check

• discussions of remaining issues based on written comments of

participants, submitted in advance

• completion of main drafting of test cases

• check whether FaSa aspects are addressed sufficiently

• After final Annual Meeting (in 2012)

• filling of gaps (if relevant)

• editorial post-processing


IAEA

Conclusions

Mechanism applied

• FaSa was a project, ToR, workplan, schedule, planned

outcomes / deliverables

• 9 WGs, 90 participants / 30 countries

• Large majority cost-free for the IAEA

• NS Dept regular budget, TC

• We executed the project workplan over 3 years

• We stayed “on schedule”

• We produced most of the planned deliverables

• Is this a model for some future IDN activities?


IAEA International Atomic Energy Agency

Thank you for your attention!

Documents

Feedback from FaSa Project - International Atomic Energy ... · PDF fileIDN 2011 - Feedback from FaSa Project 01 - 03 November 2011 11 Consideration of End State ... FDP y Final Clean-