Introducing International Research Institutefor Nuclear Decommissioning (IRID)

April 18, 2014

Toshiaki Kogai
Research Promotion Dept.
International Research Institute for Nuclear Decommissioning
無断複製・転載禁止 技術研究組合 国際廃炉研究開発機構©International Research Institute for Nuclear Decommissioning

Contents:
1. Foundation and Overview of IRID
2. Overview of R&D activities
3. Summary©International Research Institute for Nuclear Decommissioning1. Foundation and Overview of IRID

©International Research Institute for Nuclear Decommissioning

Revision of Mid-and-Long-Term Roadmap and Background of Foundation of IRID
Overview of revised Mid-and-Long Term Roadmap(Council for the Decommissioning on June 27, 2013)
1. Acceleration of the schedule for each unit corresponding to the respective condition.
• Multiple plans were developed aiming at the fuel debris retrieval for initial unit to be conducted
ten years later to be flexible with each unit.
2. Enhance communication with local community• Establish “Fukushima Advisory Board (tentative name)”• Provide opportunity to find the corporation in Fukushima in order to collaborate fordecommissioning work, and revitalize regional economy by encouraging local corporations
supplying equipment/tools.
3. Full scale maintenance of structure to gather knowledge and ideas from around the world.
• Establish R&D organization and arrange system to receive advice from overseas experts.
• Enhance collaboration with IAEA review mission, and proactive promotion of international jointresearch.
In addition to the above, following items will be stipulated and addressed in the Mid-and-Long Term
Roadmap.
 Reports the countermeasures on control of groundwater inflow by “Contaminated Water
Treatment Committee.” Secure safety of ”Specified Reactor Facility” and measures on regulations, such as ofarrangement of new standards. (improve reliability of equipment and facilities, and operation
safety for operator and radiation safety etc.)©International Research Institute for Nuclear DecommissioningProcess of Foundation and RoleFoundation
・August 1, 2013: Approved by Mr. Motegi, the Minister of Economy, Tradeand Industry, according to the Research & Development Consortium Act ofJapan.
・August 8, 2013: General Meeting and the Board of Directors were held tostart the consortium. Launched as the International Research Institute forNuclear Decommissioning.
Basic Role
・Fully committing to technology R&D that helps the decommissioning projectof Fukushima Daiichi NPS as an urgent subject, based on which enhancing
the technological basis for nuclear decommissioning for the future.

©International Research Institute for Nuclear Decommissioning

Technical Research InstituteTechnical research association is an organization for mutual support where themembers conduct joint research on the technologies used for the industrial activities
for themselves（non-profitable mutual benefit corporation established in accordancewith the Research & Development Consortium Act of Japan).
<Features of Technical Research Association>

Overview of Technical Research InstituteCorporation(member)

1. Organization change
Change the organization toStock company orlimited company and facilitate
utilization of research results.

R&D tax system
Cost processingAmount imposed
R&D tax system
Cost processing
Authority
Amount imposed
Legal entity
Research InstituteUniversity(member)

Publicresearchinstitute(member) Joint research organization with legal
personality, independent from the members.
 Improve transparence and reliability oforganizational operation through the
2. Incorporation-type company split
registration and application for authorization
Establish stock company orfor establishment for the competent minister,
limited company byand members’ general conference and theincorporation-type company split
and utilize research obtained.
board of directors.
 Person or party （including domesticSplit stock corporation orlimited company
corporation, individuals, foreign corporationand foreigner ） that utilizes the results ofjoint research directly or indirectly can be a
3. Dissolution
member of this organization.
Dissolve Technical InstituteThis organization can be utilized as a place ofAnd the members brings
research results back and utilize.
cooperation among government, industry
and academia since the universities and4. Split of Technical Instituteindependent administrative corporation oftest research, technical college, local public
Extract specific research
themes and split organization
body, foundation mainly aiming at the testfor each research theme
research etc. members can take part in.
Stock corporation orlimited company

Reduction entry

ResearchInstitute

Split Technical InstituteResearch resultCorporation(member)

 Each member provides researchers,
research fund, facilities etc., andmanage and utilize those result
together.

(Excerpts from METI website)©International Research Institute for Nuclear Decommissioning

Outline of IRID
1. NameResearch & Development Consortium,“International Research Institute for Nuclear Decommissioning” (“IRID ” in brief)

2. Location of Main Office
6F, Parkplace, 5-27-1, Shimbashi, Minato-Ku, Tokyo, 105-0004, Japan(http://www.IRID.or.jp)

3. Founding members (17)- Incorporated administrative agencies:
Japan Atomic Energy Agency, National Institute of Advanced Industrial Science andTechnology.
- Manufacturers:
Toshiba Corporation, Hitachi-GE Nuclear Energy, Ltd., Mitsubishi Heavy Industries, Ltd.,ATOX (since May 29, 2014)- Electric utilities etc :Hokkaido Electric Power Company (hereinafter called as EPC), Tohoku EPC, Tokyo EPC,Chubu EPC, Hokuriku EPC, Kansai EPC, Chugoku EPC, Shikoku EPC, Kyushu EPC, The Japan
Atomic Power Company, J-POWER, Japan Nuclear Fuel Limited.

4. Board of directorsPresident: Dr. Yamana, Vice President: Dr. Arai, and Mr. Kenda, Executive Director: Mr. Suzuki
Director: Mr. Oikawa, Mr. Moriyama, Mr. Uozumi , Mr. Hatazawa, Mr. Seto
Mr. Fukuda and Mr. Kadokami
Auditor : Mr. Konashi©International Research Institute for Nuclear Decommissioning

Schematic image of IRID’s function<With perspective of enhancing technological basis for reactor decommissioning, focusing on
clear and present challenges of Fukushima Daiichi NPS decommissioning.>-Accelerating the decommissioning of Fukushima Daiichi NPS,
securing its safety and restoring its environment.
-Early recovery of the Fukushima area and the confidencebuilding among the nation.

-Preparation for future decommissioning and enhancing its
safety level.
-Incubating , accumulating and improving the relatedtechnologies.

Council for the Decommissioning of TEPCO's Fukushima Daiichi
Nuclear Power Station

Electric Utilities
Plant Manufacturers(Chaired by Mr. Motegi, the Minister of METI)[HQ of all projects]

Presentation/report of R&D program

Presentation/report ofMid & Long term Road Map

Feed back to future decommissioning projects

Research and Development Consortium,
International Research Institute for Nuclear Decommissioning
R&D execution entities

Secretariat (R&D management )TEPCO
Fukushima Daiichi
DecontaminationandDecommissioning
EngineeringCompany

Deriveon-siteneeds
Practically
apply
results
Suggestplans andstrategies

Integrated management of
decommissioning technologies-Review and optimization of the strategy of overall
decommissioning program.
-Analysis of on-site needs and seeds oftechnologies,
coordination (optimization/matching).
-Coordination and guidance of respective
technology
development.
-Adoption of international & domestic advices.
-Exploration of potential technology.
-Enhancement of human resource development,alliance among universities, etc.

Advices on technological and managerial aspects

Advices from domestic/international organizations

Plant Manufacturers
Japan Atomic Energy Agency
Guidewell- designed
development
Guidecollaboration&cooperation
Shareresults

National Institute of Advanced
Industrial Science andTechnology
Electric Utilities
Other Research Organizations

Participation to joint study, R&D, etc.

Partner organizations of joint study©International Research Institute for Nuclear Decommissioning２．Overview of R&D activities©International Research Institute for Nuclear Decommissioning

R&D Activities of IRID
■ R&D activities to be carried out in order to meet severe conditions of reactor
buildings at Fukushima Daiichi.
High dose rate

High temp.

High humidity

RubbleElevated places

Underwater

Narrow places

Injection ofsea water

R&D for fuel removed fromspent fuel pools

DS pitSpent fuelpool
Steam Dryer
SteamSeparator

Reactor pressure
vesselEquipment Hatch
Debris

R&D for treatment anddisposal of R/W

R&D for preparation forfuel debris removal

Primary
containment vessel
Torus room

2014/11/18©International Research Institute for Nuclear Decommissioning

R&D schedule
Having completed Phase 1 of Mid-and-Long-Term Roadmap, R&D will be addressed as follows fromthe Phase 2.
1. Promotion of long-term R&D in response to the start of fuel removal from spent fuel pool.
2. Development of multilateral・multilayered method and equipment for full scale preparation offuel debris retrieval(1) - Submersion method3. Development of multilateral・multilayered method and equipment for full scale preparation of .
fuel debris retrieval(2) - Alternative method4. Stable promotion of R&D inconsideration of treatment and disposal of radioactive waste, anddecommissioning.
December 2011
(Roadmap established)
Efforts to stabilize
plant condition<Achieve cold shutdown>• Cold shutdown state• Significantly reduceradiation releases

2020-November 2013

Phase 1

Phase 2

Period up to thecommencement ofthe removal of thefuel from the spent
fuel pool (within 2years)

Period up to thecommencement of theremoval of the fuel debris(within 10 years)

30 to 40 years
in the future

Phase 3
Period up to thecompletion ofdecommissioning measures(30 to 40 years in thefuture)

Now©International Research Institute for Nuclear Decommissioning

Operation image of the fuel debris removal
 The approach of removing the fuel debris submerged in water is the safest
approach from the standpoint of minimizing exposure of workers.
 The primary containment vessel (PCV) will be examined and repaired forfilling the PCV with water. Furthermore, R&D for the fuel debris removal
and storage will be implemented.
Overhead crane

Building cover

Canisters of fuel debris

Upper head of the RPVSpent Fuel
Pool (SFP)

Spent Fuel
Pool (SFP)

Reactor Pressure
VesselFilling waterTransfer

Reactor Pressure
VesselPCV

Stopping water
Torus room

Repairing lower section of the PCV(water stoppage)- Filling lower section with water

PCV

PCV

Torus room

Torus room

retrieving the fuel debris(Reference) This figure is based on the documentsof the Council for the Decommissioning ofTEPCO’s Fukushima Daiichi NPS on June 27, 2013.

©International Research Institute for Nuclear Decommissioning

Explanatory CG-Submersion Method-©International Research Institute for Nuclear DecommissioningPurpose of Request for Information (RFI) IRID has been entrusted by Agency for Natural Resources and Energy withtechnical investigation on Innovative Approach for Fuel Debris Retrieval andconducted Request for Information (RFI) as part of this technology investigation.
 In this RFI, we verify innovative approach for Fuel debris retrieval which was proposed in
the Mid-long-term roadmap*1 Thus we collect information from wide range of organizationfrom the industry to academic institutions to government agencies to determine thetechnology required.
 Information collected will be utilized for Conceptual Study (C/S) and technologicalFeasibility Study (F/S)*2 in the future.
 Also, we hope this RFI will be the opportunity for the people involved in this project tocollaborate with link to other parties around the world.
*1:”The technology to submerge up to the upper part of a reactor containment affected by a severe accident has
difficult challenges in its many steps. Therefore it is assumed that it might be difficult to submerge up to the upperparts of the reactor containments. In addition, methods of retrieving the fuel debris without filling the PCVs withwater will be studied as alternative methods.” (from Mid-long-term roadmap)＊2:To be held in Spring/Summer of 2014 depending on the condition of government budget.

©International Research Institute for Nuclear Decommissioning

Contents of RFI
Topic A: Internal PCV/RPV investigation

Topic B: Fuel debris retrieval

A-1:Conceptual study of method (following are samples)

B-1:Conceptual study of method (following are samples)

1. Method of inserting investigation device such as
cameras inside.
a. Utilize current throughbore such as
piping/penetration.

b. Create new throughbore .

1.
2.
3.
4.

Access to fuel debris from the top of PCV underwater
Access to fuel debris from the top of PCV in the air*1
Access to fuel debris from the side of PCV in the air*1
Access to fuel debris from the bottom of PCV in the air*1*1 including partial submergencec. Methods of Shielding penetrations and ofequipment operation in terms of reduction ofradiation exposure.

B-2:Required technologies (following are samples)
1. Technology regarding fuel debris retrieval (cutting,suction).
2. Method of detecting fuel debris location by
2. Equipment/device such as remote control manipulator,measurement outside, etc.
with superior control capability from long distance.
3. Technology of shielding against fuel debris with
A-2:Required technologies (following are samples)high radiation.
1. Advanced measurement technology (camera,
4. Device and equipment under the high radiation
dosimeter, thermometer etc. )environment.
a. High performance optical equipment(camera etc. ),5. Equipment/device to create a borehole on theother measurement technology (ultrasonic, laser
building concrete and PCV to access from the sideetc.)
or bottom of the PCV.
b. Control technology of measuring instrument, and
6. Technology to store fuel debris safely in PCV/RPV
information transmission technology .
before retrieving.
2. Technology to detect whether the substance in thereactor is fuel debris or not.
©International Research Institute for Nuclear DecommissioningAnnouncement on RFI procedures andpromotion for invitation
IRID has been promoting publication and application for RFI, and announcement of RFI procedures since
fall of 2013 as well as providing reference information necessary for the study.
Announcement of RFI procedures andOutline of activities
Promotion activity of RFI invitation•Nov.

Opened website for invitation.
Held overseas workshop.

•Establishment/
announcement
on RFI
procedures

Sent reminder mail.
•Dec.

Announced RFI procedures .

•Holding ofworkshop

Held domestic workshop.
Set up web forms forapplication.
Uploaded basic data ofFukushima Daiichi NPS on the web. .
•Jan

Uploaded technical issues･related R&D status.
Sent reminder mail.

• Provision ofreference infofor relatedtechnology.
•Delivery ofRFI notice Established Entry form as well as opened website forapplication and announced procedures for RFI for
applicant’s convenience.
 Held workshop in Japan and overseas forthe publication of background and purpose of RFIand promoted invitation.
Venue : UK, France, US, Canada, Germany and Japan.
- Tens of people attended from related company,R&D agency for each workshop.
About 130 participants from Japan.

 Disclosed reference technology data on the website
for information collection for RFI- Basic data of Fukushima Daiichi NPS (Structure /externaldimension etc.)- Technical issues and status of R&D in Japan/overseas.

 Made announcements regarding implementation of RFI
and uploading of reference information for followings.
- Overseas and domestic related academic meeting , andindustry organization.
- Companies participated in previous workshop .

©International Research Institute for Nuclear Decommissioning

Results of RFI
About 40% from total 194 items of information was from overseas countries.

TotalJPNUS

Breakdown by country
GER FRAUKBEL

A-1：Conceptual
study for themethod.

33

20

73-

2A-2：Required
technology

58

32

6106

B-1：Conceptual
studyfor the method

43

23

8

3

B-2：Required
technology

60

41

7

Total (No. of itemsof information)

194

116

Total (No. oforganizations) *95

61•Field of information for RFI
Topic A
Internal PCV/RPV
investigation
Topic B
Fuel debris
retrieval

CAN

RUS-

1-

22--

25-

113422-128

19121142213844122©International Research Institute for Nuclear Decommissioning* Counted as one if there’re same organizations but different departments.

Workshop in Japan
Workshop for R&D on Innovative Approach for Fuel Debris Retrieval
IRID has been entrusted technical research on the design of Innovative Approach for
Fuel Debris Retrieval and conducted Request for Information (RFI) by Agency for
Natural Resources and Energy (ANRE) last year.

We are co-hosting workshop for R&D project of Innovative Approach for Fuel DebrisRetrieval with Mitsubishi Research Institute (MRI) as Management Office for theProject of Decommissioning and Contaminated Water Management appointed byANRE.
The workshop is for reporting the results of collected proposals for RFI and giving anoverview of Request for Proposal (RFP) planning in the mid June.
Date and Time: Friday, April 25, 2014 13:30-16:30
Venue: Bellesalle Onarimon Ekimae©International Research Institute for Nuclear Decommissioning３．Summary©International Research Institute for Nuclear Decommissioning

Summary - 1
1. IRID was established in Aug. 2013 as an integratedorganization to conduct researches by gathering knowledge
around the world according to the Mid-and-Long-TermRoadmap.
2. As for R&D, IRID conducts an integrated management topromote multiple R&D projects effectively. Fields of theR&D consists of following three. IRID also plans a total
strategy of the technologies required for thedecommissioning by optimizing the on-site needs andtechnological seeds.
(1) Removal of fuel from spent fuel pool
(2) Preparation of fuel debris retrirval(3) Treatment and disposal of radioactive materials©International Research Institute for Nuclear Decommissioning

Summary – 2
3. For the purpose of gathering knowledge around the world ,IRID advances the foundation of a structure to receiveadvise from the experienced experts around the world
through “International Advisors”, “Technology Advisory
Committee” and “International Expert Group”, as well as
considering the involvement in the joint research projectthrough OECD/NEA and responding to the IAEA review.
Also, conduct Request for Information (RFI) internationallyfor the countermeasures on contaminated water and fueldebris retrieval.

4. Hold workshops to build a structure to promote basic
researches in collaboration with research institutes anduniversities with Mid-and-Long-Term human resource
development in consideration.
©International Research Institute for Nuclear Decommissioning

Thank you very much foryour kind attention.
Please visit IRID website !
http://www.irid.or.jp/