IRID Symposium 2021: Challenges for Fuel Debris Retrieval Ⅳ
The International Research Institute for Nuclear Decommissioning (IRID) held the IRID Symposium 2021 to report on the achievements in technological developments related to the decommissioning of the Fukushima Daiichi Nuclear Power Station (NPS), which is being conducted by IRID. The details of the symposium are as follows.
The IRID Symposium has been annually held since IRID was established and the its theme in 2021 was “Challenges for Fuel Debris Retrieval Ⅳ.” The symposium was intended to report on the results of research and development (R&D) undertaken by IRID, and to promote the cultivation of young researchers and engineers.
Due to the COVID-19 pandemic, the symposium in 2021 was held in a hybrid style that included a mix of both in-person and online attendees. Only a limited number of participants gathered at the symposium venue, whereas most participants joined a hybrid symposium.
- 1. Date and time: Wednesday, December 8, 2021, 13:00-17:15 (Opens at 12:30)
- 2. Place: 6th Floor of Exhibition Hall, Iwaki Business Innovation Center (LATOV), Iwaki city, Fukushima Prefecture
- 3. Program
| 13:00-13:05 | Opening remarks |
| by Mr. Toyoaki Yamauchi, President of IRID | |
| 13:05-13:10 | Guest speech |
| by Mr. Keiichi Yumoto, Director-General of Nuclear Accident Disaster Response, Ministry of Economy, Trade, and Industry (METI) | |
| 13:10-13:30 | Report of R&D results *Presentation file [PDF] is available only in Japanese.
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| by Mr. Kenro Takamori, General Manager of the R&D Strategy Planning Department, IRID | |
| 13:30-13:50 | Report of R&D results *Presentation file [PDF] is available only in Japanese.
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| by Mr. Fumihiro Hosoe, Mitsubishi Heavy Industries (MHI), Ltd. | |
| 13:50-14:10 | Report of R&D results *Presentation file [PDF] is available only in Japanese.
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| by Dr. Satoshi Okada, Hitachi-GE Nuclear Energy, Ltd. | |
| 14:10-15:45 | Report of research results by students (7 presentations) |
| 15:50-16:50 | Poster exhibitions on the nuclear decommissioning |
| 16:50-16:55 | Award ceremony for students |
| 16:55-17:00 | Comments on awards |
| by Mr. Akihisa Heike, Executive Director of IRID |
<Video> Video footage of the symposium can be viewed on YouTube.
*Click YouTube link. This video is available only in Japanese.
Panel exhibitions on the decommissioning technologies
- Click the images to open the PDF files.
Introduction to IRID
Overview of IRID’s R&D
History of IRID’s R&D
Development of analysis technology for fuel debris and particle behavior estimation during fuel debris retrieval
Investigating the inside of the reactor pressure vessel (RPV) for fuel debris retrieval
Investigation of the inside of the pedestal to acquire the information required for creating a fuel debris retrieval plan
Development of large-scale retrieval equipment to acquire the information on the properties of fuel debris
Retrieval of molten fuel debris that has fallen into the RPV and the primary containment vessel (PCV) (development of methodology)
Retrieval of molten fuel debris that has fallen into the RPV and PCV (development of retrieval technology)
Prevention of criticality during fuel debris retrieval and early detection to control abnormalities
Spreading prevention of the dust generated during fuel debris processing.
Long-term safety storage of fuel debris.
Safety management and waste disposal.
Detailed investigation of the inside of the PCV and fuel debris retrieval test
Acquisition of detailed information on the inside of PCV for fuel debris retrieval (establishment of the access route and the submersible-type investigation apparatus)
The IRID Symposium 2021
The symposium included R&D presentations related to fuel debris retrieval for Fukushima Daiichi NPS. These were delivered by Mr. Kenro Takamori, General Manager of the R&D Strategy Planning Department, IRID; Mr. Fumihiro Hosoe, MHI, Ltd.; and Dr. Satoshi Okada, Hitachi-GE Nuclear Energy, Ltd. Approximately 100 people attended the symposium venue (including press members) and 320 people had registered for the online symposium.
- Click the images to see enlarged views.
Reception of the venue
The main hall
Opening remarks by Mr. Yamauchi, President of IRID
Guest speech by Mr. Keiichi Yumoto, Director-General of METI
Mr. Kenro Takamori, General Manager of IRID
Mr. Fumihiro Hosoe, MHI, Ltd.
Dr. Satoshi Okada, Hitachi-GE Nuclear Energy, Ltd.
The symposium featured presentations of research achievements by students, as was done during the previous symposium. IRID awarded two students with the best and second-best among seven students. All students performed high-quality presentations, and their assessment results were very similar.
Award ceremony
Award ceremony
Award ceremony
Award ceremony
Comments by Mr. Heike, Executive Director of IRID
Poster exhibition
Poster exhibition
Poster exhibition
Poster exhibition
A site tour of Fukushima Daiichi NPS, Fukushima Robot Test Field, and the Japan Atomic Energy Agency Naraha Center for Remote Control Technology Development
On Thursday, December 9, 2021, IRID organized a site tour of the Fukushima Daiichi NPS, the Japan Atomic Energy Agency (JAEA) Naraha Remote Technology Development Center (NARREC), and the Fukushima Robot Test Field (RTF) for students who gave presentations or exhibited posters at the IRID Symposium 2021. Every year, a site tour is arranged on the day after the symposium. This site tour also included RTF, which was located in Minamisoma City, Fukushima Prefecture.
The site tour aimed to promote a better understanding of R&D for nuclear decommissioning, and to provide an opportunity to visit Fukushima Daiichi NPS and the nuclear facilities to be utilized for further research activities by those students who wish to work on decommissioning in their future.
- Click the images to see enlarged views.
At the Fukushima RTF
Top view of the Fukushima Daiichi NPS
At the main gate of TEPCO* Decommissioning Archive Center
*Tokyo Electric Power Company Holdings Inc.
JAEA NARREC
- Reports of Activities
- 2019
- IRID Symposium 2019: Challenges for Fuel Debris Retrieval Ⅲ (August 1, 2019)
- Special Lecture by Mr. Naoaki Okuzumi for Fukushima Technology Center Research Workshop (June 25, 2019)
- Dr. Tamio Arai, Vice President of IRID, Delivers a Lecture at the International Topical Workshop on Fukushima Decommissioning Research (FDR 2019) (May 26, 2019)
- Kenro Takamori, General Manager of the R&D Strategy Planning Department, Delivers Lecture at the International Research Centre for Nuclear Materials Science, Institute for Materials Research, Tohoku University (April 11, 2019)
- Mr. Kenro Takamori, General Manager of R&D Strategy Panning Department, at the 2019 Spring Meeting, Atomic Energy Society of Japan. (March 20, 2019)
- Dr. Tamio Arai, Vice President of IRID, Delivers a Lecture at the NPO Environmental Veterans Firm (EVF) (March 19, 2019)
- Naoaki Okuzumi’s Lecture at the JAIF International Cooperation Center (JICC) (February 1, 2019)
- Naoaki Okuzumi, Senior Manager of the R&D Strategy Planning Department, Participated in the International Conference and Delivered a Lecture [OECD/NEA SAREF Joint Workshop on the Fukushima Daiichi Decommissioning/PreADES Project] (January 24 and 28, 2019)
- 2018
- Lecture by Naoaki Okuzumi, Senior Manager of R&D Strategy Planning Department, at The Japan Machinery Federation (November 30, 2018)
- Booth Display at Robot Festa Fukushima 2018: Research and Development for the Decommissioning of Fukushima Daiichi Nuclear Power Station, and Introduction of Submersible Robot (November 22-23, 2018)
- IRID President Hideo Ishibashi Delivers Lecture at RADIEX 2018 (October 11, 2018)
- Lecture by Naoaki Okuzumi, Senior Manager of R&D Strategy Planning Department, at Fukushima Prefectural Centre for Environmental Creation (September 21, 2018)
- The 2018 Fall Meeting of the Atomic Energy Society of Japan: Lecture by Hideaki Kiyoura, General Manager of the R&D Management Department. (September 7, 2018)
- IRID Symposium 2018: Challenges Toward Fuel Debris Retrieval Ⅱ (August 2, 2018)
- Lecture by Hideo Ishibashi, the President of IRID, at the Chubu Atomic Power Conference (May 29, 2018)
- A Lecture by Naoaki Okuzumi, Senior Manager of R&D Strategy Planning Department at the Warsaw JAIF International Cooperation Center (JICC) in Poland (May 17, 2018)
- A Lecture by Dr. Tamio Arai at Academic Network contributing to Fukushima Reconstruction and Reactor Decommissioning (ANFURD): Workshop on Potential Issues for Fuel Debris Retrieval (May 15, 2018)
- Booth Display at the 89th Fukushima Prefecture May Day (April 28, 2018)
- Atomic Energy Society of Japan Symposium / Nuclear Decommissioning of TEPCO’s Fukushima Daiichi Nuclear Power Stations: Key Issues and Perspectives , A Lecture by Vice President Dr. Tamio Arai (March 18, 2018)
- 6th Asian Nuclear Power Briefing 2018 (February 13, 2018)
- Lecture at the JAIF International Cooperation Center (JICC) (February 12, 2018)
- Visit to the U.S. Pacific Northwest National Laboratory (PNNL) (January 29-30, 2018)
- Naoaki Okuzumi, Senior Manager of R&D Strategy Planning Department, Participated in the International Conference to Deliver a Lecture [OECD/NEA, SAREF/PreADES Project, and BSAF Project Phase-2 Workshop](January 18 and 22, 2018)
- 2017
- Lecture by Dr. Hironori Adachi, Senior Manager of the R&D Management Department [Lecture Meeting on Nuclear Decommissioning and Contaminated Water Management] (December 20, 2017)
- Poster Display at "Japan Atomic Energy Agency (JAEA) Naraha Remote Technology Development Center" (26 November 2017)
- Poster Display at "Iwaki Industry Festa: Iwaki Industry Innovation Exhibition / Business Matching EXPO 2017" (24-25 November 2017)
- Booth Display at "Robot Festa Fukushima 2017" (22-23 November 2017)
- Naoaki Okuzumi, Senior Manager of R&D Strategy Planning Department, Gives Speech at the 26th Polymer Materials Forum (November 16, 2017)
- Poster Displays at "Special Exhibition of Nuclear Decommissioning and Operational Extension: Current Situation of Nuclear Power Stations in Fukui Prefecture." (November 3-12, 2017)
- IRID President Hideo Ishibashi Delivers Lecture at RADIEX 2017 (October 20, 2017)
- IRID Presentation at the 34th JAIF-KAIF Seminar on Nuclear Industry (October 16, 2017)
- IRID Lectures at the 2017 Fall Meeting of the Atomic Energy Society of Japan
- IRID Symposium 2017 in Iwaki City: – Challenging Toward Fuel Debris Retrieval –
- Lecture by IRID Executive Director Atsufumi Yoshizawa at ICAPP 2017 (April 28, 2017)
- 2016
- Booth Display at ‘Robot Festa Fukushima’ (November 19, 2016)
- Participation in ‘Science Agora 2016′ (November 5-6, 2016)
- Mr. Hirofumi Kenda, President of IRID, Delivers Lecture for RADIEX 2016 (October 20, 2016)
- Mr. Atsufumi Yoshizawa, Executive Director, Addresses the Atomic Energy Society of Japan 2016 Fall Meeting (September 9, 2016)
- IRID Symposium 2016 in Tokyo Develop the Future for Decommissioning (August 4th, 2016)
- Dr. Kotoku and Mr. Ohhashi, both of Deputy General Managers, lectured at International Conference on Advancing the Global Implementation of Decommissioning and Environmental Remediation Programmes. (May 23rd – May 27th, 2016)
- Lecture by Mr. Kiichi Suganuma, Executive Director of IRID, at the Third Japan-U.S. Decommissioning and Remediation Fukushima Recovery Forum (Feb. 24, 2016)
- Lecture by Mr. Kiyoshi Oikawa, Director of IRID, entitled “International Workshop on the Use of Robotic Technologies at Nuclear Facilities” (Feb. 3, 2016)
- 2015
- Participation in the International Robot Exhibition 2015 -Exhibition of Decommissioning Robots and Lecture by IRID Director Kiyoshi Oikawa-(Dec. 2-5, 2015)
- Lecture Delivered by Mr. Kiichi Suganuma, Executive Director of IRID at the Fifth World Engineering Conference and Convention (Dec.1, 2015)
- Participation in Science Agora 2015 -Introduction of Robots for Nuclear Decommissioning and Announcement of IRID’s R&D Achievements-(Nov. 14-15, 2015)
- Exhibition at an IRID booth at the Robot Festa Fukushima 2015 -Introduction of Robots for Decommissioning-(Nov. 3, 2015)
- Lecture by Tetsuo Kotoku, IRID Deputy General Manager, R&D Strategy Planning Department at 2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2015) (Oct. 2, 2015)
- Report on IRID’s R&D Achievements at 2015 Fall Meeting of the Atomic Energy Society of Japan (Sept. 11, 2015)
- The 33-rd Annual Conference of the Robotics Society of Japan (Sept. 3-5, 2015)
- IRID Symposium 2015 in Fukushima – Create a Path to Decommissioning “Approaching Molten Fuel Debris” –
- Lecture by IRID President Hirofumi Kenda at RADIEX2015 (Jul. 15-17, 2015)
- The 12th Scientific Lecture Meeting of the Japan Society of Maintenology (Jul. 13 -15, 2015)
- Lectures by IRID Director Kiyoshi Oikawa and Deputy Manager Yasuaki Miyamoto at the German-Japanese Symposium on Technological and Educational Resources for the Decommissioning of Nuclear Facilities (April 21, 2015)
- Lecture by Takashi Sato, General Manager of IRID R&D Management Department [2nd Japan-U.S. Decommissioning and Remediation Fukushima Recovery Forum] (Apr. 9, 2015)
- Lecture by IRID Executive Director Kiichi Suganuma at the Chubu Atomic Industrial Conference (Feb. 13, 2015)
- 2014
- Lecture Delivered by IRID Director Kiyoshi Oikawa at the Regular Meeting of the Iwaki Association of Corporate Executives. (Dec. 5, 2014)
- Lecture Delivered by IRID Director Kiyoshi Oikawa at the 4th ‘NEXT 30 Study Group’ research seminar (Oct. 29, 2014)
- President of IRID, Mr. Kenda gave a speech [WRFPM2014]
- 2014 Fall Meetings of Atomic Energy Society of Japan
- Keynote Speech by IRID Director Kiyoshi Oikawa at the Inauguration of the Nuclear Decommissioning Council, Koriyama City (July 24, 2014)
- Lecture Delivered by IRID Director Toshihiko Fukuda to The Association for Nuclear Decommissioning Study Fourth Workshop FY2014 (July 22, 2014)
- IRID Annual Symposium 2014 IRID activities for nuclear decommissioning
- Lecture by IRID President Hajimu Yamana to MBA21 (May 28, 2014)
- Speech by IRID President Hajimu Yamana to the Nuclear Systems Association (May 20, 2014)
- Finnish Delegation Visited
- Special Lecture given by Mr. Lake Barrett (April 29, 2014)
- Visit by Members of the Fukushima Prefectural Assembly to the Kyoto University Research Reactor Institute (April 10, 2014)
- Presentation to the Atomic Energy Society of Japan Chubu Branch by IRID Executive Director Kazuhiro Suzuki (May 14, 2014)
- Press conference held at the Japan National Press Club by the President of IRID,
Dr. Yamana