OUR PRODUCTS

For over four decades, Mitsubishi Heavy Industries, Ltd. (MHI) has been supplying reliable products and services to utilities operating nuclear power plants using pressurized water reactor technology. We provide basic plans and designs; component manufacturing; plant construction; ongoing maintenance; the full nuclear fuel cycle (from uranium enrichment to final waste disposal); and heavy investment in research and development of new technology.

We seek to be an “evolutionary” provider of nuclear equipment and services by building on existing technologies rather than to attempt revolutionary advancements. As the role of nuclear power generation grows more important in society, We strive to achieve an eco-friendly power industry with nuclear power generation systems that are the safest, most reliable and most efficient in the industry.

The basic design of the PWR plant is simple: pressurized water is used as the reactor coolant, and the reactor and turbine systems are separated by steam generators in an indirect cycle system.

The features of Mitsubishi PWR plants include:

• The high moderator density allows minimization of rod pitch by reducing the number of fuel assemblies and the reactor core size.
• The absence of bulk boiling in the core limits cladding corrosion, thus increasing fuel reliability.
• The open-lattice fuel assembly design contributes to the efficient use of neurons, resulting in excellent fuel economy
• The inherent self-control mechanisms in the design use gravity to ensure a safe shutdown capability.
• Our PWR plants generate an extremely low quantity of radioactive wastes.
• The non-activated turbine system can be easily operated and maintained.
• The emergency heat-removal capability of the secondary system enhances reactor safety.
• The plant design adopts a system equivalent to dry-type reactor containment systems.
• The low center-of-gravity plant design provides stronger seismic resistance.