Offering Supreme Safety and Quality Required for Nuclear Power Plants
Hamaoka Nuclear Power Plant of the Chubu Electric Power Co., Inc. (Courtesy: Chubu Electric Power Co., Inc.)
In the nuclear power plant business, ensuring the highest possible quality is crucial for enhancing safety while increasing economic efficiency.
Leveraging abundant experience and technical expertise, Toshiba Plant Systems & Services Corporation is engaged in the design, construction, testing, and commissioning of various nuclear power plant systems to help secure the safety of nuclear power plants.
We operate in four fields, taking advantage of our cutting-edge technologies: 1) domestic light-water reactor business, 2) Fukushima revitalization business, 3) nuclear fuel cycling business, and 4) nuclear-related facility business.
Cutting-edge nuclear technologies
Cutting-edge nuclear
technologies
Domestic light-water reactor business
Domestic light-water reactor business
As a member of Toshiba Group, Toshiba Plant Systems & Services Corporation provides comprehensive solutions for the construction of nuclear power plants, encompassing detailed design, construction planning, on-site construction, testing, and commissioning.
We also offer refurbishing and maintenance services for nuclear power plants as well as engineering and construction services for safety enhancement. For design and construction planning, we have realized a short lead time and high quality using laser-scanned 3D data and Toshiba’s integrated engineering tools, earning a high reputation among our customers.
Initiatives for restarting nuclear power plants in Japan
Since the Fukushima Daiichi nuclear accident, we have been working to comply with Japan's new nuclear safety regulations.
The safety functions of nuclear power plants are designed to withstand a strong ground motion caused by the largest earthquake that is considered theoretically possible. Accordingly, we are reinforcing pipes, cable trays, systems, and associated apparatus.
Example of seismic reinforcement of a pipe
Example of seismic reinforcement of cable trays
To prevent damage to the primary containment vessel due to overpressure, we are striving to reinforce reactor water injection systems while promoting safety improvement measures, including the installation of backup closed-loop cooling systems and filter vents.
We also offer comprehensive services related to emergency response buildings, etc. that would act as a command and communication center in the event of a severe accident, encompassing detailed design, construction planning, on-site construction, testing, and commissioning.
Construction planning using a 3D printed model
Installation of a filter vent
We are striving to implement measures to prevent water intrusion and serious fires (including firefighting and protection measures).
Fire-resistance measure for the wall penetrating portion cable trays
Refurbishment, maintenance, and life extension of nuclear power plants
We are working on the refurbishment, maintenance, monitoring, diagnosis, and assessment of nuclear power plants to support long-term stable operation, increase facility availability, and prolong a plant’s life.
Inspection and repairing of a turbine
Diagnosis of rotating equipment (collection of operating data of an agitator)
Construction of light-water reactors
We offer the optimal QCD+S (quality, cost, delivery, and safety), leveraging the abundant expertise in engineering, planning, and construction techniques cultivated through decades of experience.
Our experienced engineers possess the wealth of expertise needed to create the optimum reactor design while considering customer requirements, maintainability, and compliance with laws, regulations, and standards.
Our advanced planning and construction techniques using IT technology help reduce the construction period and improve quality.
We also perform testing and commissioning of various systems to ensure the safety of nuclear power plants.
Reducing the installation period using a modular construction method
Construction management using a tablet PC
Testing and commissioning to ensure a plant's safety
Construction simulation using a virtual system
Fukushima revitalization business
Fukushima revitalization business
As part of our efforts to support the revitalization of Fukushima, we are contributing to the recovery from the Fukushima Daiichi accident. Our initiatives include the treatment of contaminated water and the removal of fuel from the spent fuel pool. In addition, we are involved in the development and implementation of a safe and economical plan for the decommissioning of the plant, drawing on our construction technology cultivated through years of experience.
Treatment of contaminated water
To help reduce the risk of radiation from contaminated water, we offer detailed design, on-site installation, and operational services for the Advanced Liquid Processing System (ALPS), which is capable of removing most radionuclides. As the amount of contaminated water stored in tanks at the Fukushima Daiichi Nuclear Power Station increases every day, the Japanese government is planning to discharge ALPS-treated water into the sea. We are working on measures for contaminated water issues in accordance with the government’s plan.
Installation of a new tank
Contaminated water treatment facility (Advanced Liquid Processing System)
Removal of fuel from the spent fuel pool
We provide support for the removal of fuel from the spent fuel pool in a high-radiation environment, including for the remote-controlled removal of large debris, installation of a fuel handling machine, and removal of the spent fuel.
We commenced the fuel removal work at Unit 3 in April 2019 and completed the removal of 566 spent fuel rods in February 2021.
Installation of a fuel handling machine
Supporting the removal of spent fuel at a remote operation room (Source: Tokyo Electric Power Company Holdings, Inc.)
Management of radioactive waste
We are constructing solid waste storage buildings for the safe storage and management of radioactive waste generated by the decommissioning of nuclear facilities. We are also working on the stabilization of secondary waste produced by the treatment of contaminated water in order to further reduce the risk posed by their storage.
Construction of No.9 solid nuclear waste storage building
Nuclear fuel cycling business
Nuclear fuel cycling business
As a nation with limited natural resources, Japan is promoting a nuclear fuel cycle that reprocesses spent fuel from nuclear power plants, recovers uranium and plutonium, and makes MOX fuel. We are engaged in detailed design, construction, commissioning, and operational support for Japan's first commercial reprocessing plant, the key element of a nuclear fuel cycle. We are also striving to implement safety measures compliant with Japan’s new nuclear regulations.
Nuclear-related facility business
Nuclear-related facility business
We offer advanced installation and other technological capabilities in the field of nuclear applications, including nuclear fusion facilities and heavy-ion radiotherapy systems. In addition, we offer engineering, procurement, and construction (EPC) services for the balance of plant (BOP).
JT-60SA at the Naka Fusion Institute of the National Institutes for Quantum Science and Technology (QST)
Rotating gantry of a heavy-ion radiotherapy system at the East Japan Heavy Ion Center of the Faculty of Medicine, Yamagata University
Cutting-edge nuclear technologies
Cutting-edge nuclear technologies
In order to offer added value geared to changing business environments and customer needs, we are expanding our business fields, strengthening our technological capabilities, and reforming our business processes.
- Technologies of the Nuclear Energy Systems & Services Division
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- We possess extensive technologies required for the EPC business, encompassing the design, procurement, construction, and commissioning of plant facilities. We are promoting digital transformation (DX) using engineering databases (EDB) and 3D CAD models, achieving various results at each step of EPC projects.
- Key points
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- We have developed 3D design technology to automatically optimize the placement of pipes and pipe hangers. We have translated engineering information and human expertise into AI-powered software so as to realize an automated system for creating the optimum piping design in 3D, thus considerably improving work efficiency and saving labor.
- We have developed a technology to automate a series of verification processes, including verification of the entire routing path of the laid cables, a comparison of the actual cable routing path with the plan, and validation of the adequacy of the routing path. This technology not only helps improve safety, quality, and work procedures but also makes it possible to utilize the collected information for maintenance purposes, thus facilitating life-cycle cable management.
- We have concluded a technical collaboration agreement with Siempelkamp NIS Ingenieurgesellschaft mbH (NIS) of Germany covering decommissioning of nuclear power plants. We will combine our construction technology cultivated through the construction and maintenance of nuclear power plants in Japan with NIS’s nuclear reactor dismantling technology in order to ensure safety while saving labor and improving the efficiency of dismantling.
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