Reactor thermal power uprate (Power uprate) of operating light water reactors has long successful experiences in many nuclear power plants in the United States of America and European countries since late 1970’s. And it will be also introduced in Japan soon. This paper mainly describes the outline of the attempt of five-percent reactor thermal power uprate of Tokai No.2 Nuclear Power Station (Tokai-2) operated by the Japan Atomic Power Company (JAPC). It will be the leading case in Japan. Tokai-2 is GE type Boiling Water Reactor (BWR) of 1100 MW licensed electric power output and it commenced commercial operation in November 28, 1978. Power uprate is an effective approach for increasing electric power output. And it is recognized as one of the measures for effective and efficient use of existing Japanese operating nuclear power plants. It can contribute to inexpensive and stable electric power supply increase. Especially “Stretch Power Uprate (SPU)” requires only minor equipment modification or component replacement. It is also a countermeasure against global warming. Therefore it is a common theme to be accomplished in the near future for both Japanese electric power companies and government. JAPC started feasibility studies on power uprate in 2003. And in 2007, JAPC established a plan to achieve five-percent power uprate in Tokai-2 and announced this project to the public. This is a leading attempt in the Japanese electric power companies and it is the first case under the current Japanese regulatory requirements. In this plan, JAPC reflected lessons learned from preceding nuclear power plants in the United States and European countries, and tried to make most use of the performance of existing systems and components in Tokai-2 which have been periodically or timely renewed by utilizing more reliable and efficient design. JAPC plans to submit application documents to amend current License for Reactor Establishment Permit shortly. It will contain a complete set of revised safety analysis results based on the uprated reactor thermal power condition. Successful introduction of Tokai-2 power uprate will contribute to the establishment of regulatory process for power uprate in Japan and following attempts by other Japanese electric power companies.
Skip Nav Destination
18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4929-3
PROCEEDINGS PAPER
The Outline of the Five-Percent Power Uprate Project in Tokai-2
Hitoshi Ohata,
Hitoshi Ohata
The Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Toshikazu Nishibata,
Toshikazu Nishibata
The Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Tetsuya Onose
Tetsuya Onose
The Japan Atomic Power Company, Tokyo, Japan
Search for other works by this author on:
Hitoshi Ohata
The Japan Atomic Power Company, Tokyo, Japan
Toshikazu Nishibata
The Japan Atomic Power Company, Tokyo, Japan
Tetsuya Onose
The Japan Atomic Power Company, Tokyo, Japan
Paper No:
ICONE18-29845, pp. 295-299; 5 pages
Published Online:
April 8, 2011
Citation
Ohata, H, Nishibata, T, & Onose, T. "The Outline of the Five-Percent Power Uprate Project in Tokai-2." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 1. Xi’an, China. May 17–21, 2010. pp. 295-299. ASME. https://doi.org/10.1115/ICONE18-29845
Download citation file:
2
Views
Related Proceedings Papers
Related Articles
The Fabulous Nuclear Odyssey of Belgium
J. Pressure Vessel Technol (June,2009)
Dr. Romney B. Duffey on His 80th Birthday
ASME J of Nuclear Rad Sci (July,2022)
NED Chair’s Message
ASME J of Nuclear Rad Sci (January,2015)
Related Chapters
Development of Nuclear Boiler and Pressure Vessels in Taiwan
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 3, Third Edition
Lessons Learned: NRC Experience
Continuing and Changing Priorities of the ASME Boiler & Pressure Vessel Codes and Standards
Maine Yankee Atomic Power Plant
Decommissioning Handbook