USNC Collaborates with South Korean Firms to Develop Advanced Nuclear Reactor Power Systems

Hyundai Engineering, Korea Atomic Energy Research Institute to Cooperate with USNC on Incorporating Key Technologies into Micro Modular Reactor

U.S.-based Ultra Safe Nuclear Corporation (USNC) announces the signing of a Memorandum of Understanding (MOU) with Hyundai Engineering (HEC) and the Korea Atomic Energy Research Institute (KAERI). The five-year agreement outlines goals for development of technologies that enhance the USNC Micro Modular Reactor’s (MMR) ability to produce and deliver carbon-free power, heat, and hydrogen. The value of the agreement in terms of cash, or engineering design and support services in return to equity, was not disclosed.

ulta safe process heat as a product

Potential end uses of heat from the MMR. Image: Ultra Safe Nuclear Corp.

There are two primary areas of exploration outlined in the MOU: Multiple MMR reactors can be linked together to provide between 5 and 10 MW of electricity per unit, up to 150 MW of heat, or a combination of the two.

High Temperature Gas-Cooled Reactor (HTGR) plant – development and deployment of HTGR technology for supplying power as well as process-heat production, critical to the operations of industrial processing plants.

Very High Temperature Gas-Cooled Reactors (VHTR) plant – development and deployment of a VHTR system for production of hydrogen for use in fuel cells.

“We are committed to combining the simple, elegant design of our MMR with state-of-the-art energy-production technologies from around the world,” stated Francesco Venneri, CEO, USNC.

“Working with leaders like Hyundai Engineering and KAERI on advanced nuclear reactor technologies will improve the overall performance and value of our MMR, and accelerate our path to wide-scale deployment.”

USNC plans to incorporate technologies resulting from this collaboration into the MMR Project at the Chalk River Laboratories site in Ontario. The Chalk River MMR is currently in Stage 3 of Canadian Nuclear Laboratories’ thorough process to select proponents to construct and operate a small modular reactor (SMR) at that location. The firm is also involved in an R&D collaboration with CNL on fuel for the reactors.

According to the website of the Canadian Nuclear Safety Commission, UNSC initiated Phase 1 of the vendor design review process in December 2016.

The USNC MMR Reactor consists of two plants: the nuclear plant that generates heat, and the adjacent power plant that converts heat into electricity or provides process heat for industrial applications.

The USNC system is designed to be uniquely simple, with minimal operations and maintenance requirements, and no on-site fuel storage, handling, or processing. Key to the overall design is USNC’s Fully Ceramic Microencapsulated (FCM) fuel, providing a new approach to reactor safety at the fuel level.

About The Ultra Safe MMR Reactor

Reactor Core – The reactor core consists of hexagonal graphite blocks containing stacks of FCM fuel pellets. The MMR reactor core has a low power density and a high heat capacity resulting in very slow and predictable temperature changes. The MMR reactor is fueled once for its lifetime.

Helium Coolant – Helium gas is the MMR™ reactor’s primary coolant. The helium passes through the nuclear core and is heated by the controlled nuclear fission process. The helium then transports the heat away from the core to the Molten Salt System.

The MMR reactor uses helium as it is an inert gas; a radiologically transparent, single-phase gas with no flashing or boiling possible. Helium does not react chemically with the fuel or reactor core components. It is easy to accurately measure and control the helium pressure in the reactor. The FCM fuel ensures the helium is clean and free of fission products.

Molten Salt Loop – Intermediate Heat Transfer Loop; The MMR plant is simple to operate, and flexible in its outputs. The use of molten salt thermal storage allows for significant flexibility in the supply of both electricity and process heat.

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