A number of key results have been achieved in the development of the fourth-generation advanced nuclear energy system lead-based fast reactor

China General Nuclear Power Group announced on the 16th that the company has jointly promoted the design and development of the fourth-generation advanced nuclear energy system-lead-based fast reactor, jointly promoted by dozens of scientific research institutions at home and abroad. It has achieved a series of results and has independently developed a number of Key technology and equipment.

The fourth-generation advanced nuclear energy system lead-based fast reactor is a fast neutron reactor with molten metallic lead or lead-bismuth alloy as the coolant. It uses a closed fuel cycle and can operate under normal pressure and high temperature conditions. Lead-based fast reactors have excellent fuel conversion capabilities and can effectively improve the utilization of uranium and thorium resources

It can also be used to burn the long-lived actinides in the existing spent light water reactor fuel to improve the sustainability of the fuel, so as to use nuclear energy more cleanly. In addition, its inert and low-pressure coolant system further enhances the safety of the reactor.

According to reports, China General Nuclear Power has developed the third-generation nuclear power technology "Hualong One", and is also actively investing in the fourth-generation advanced nuclear power technology research and development. At present, it has cooperated with the Chinese Academy of Sciences and dozens of domestic and foreign scientific research units to develop and develop lead-based fast reactor models. Key technology and equipment, software research and development, experimental test

A series of research results have been made in areas such as certification, new materials, and infrastructure.

Among them, the advanced nuclear energy intelligent optimization cloud design platform (ANSOC) independently developed by CGN can realize the multi-objective optimization design of lead-based fast reactors, greatly simplifying the R&D and design process. In terms of key technology and equipment, the smelting method produces high-strength oxide dispersion strengthened steel (ODS)

The research and development of austenitic stainless steel (CLRASS) cladding and high-precision platinum oxygen sensors for lead-based fast reactors in China has made key progress in the corrosion resistance and radiation resistance of lead-based fast reactor materials. The closed refueling device under non-transparent media and the rare earth method polonium 210 capture technology will be further improved

Safety of lead-based fast reactors.

In addition, in terms of hardware, a number of experimental benches such as lead-bismuth thermal fluids, dynamic and static corrosion devices, lead-bismuth process integration platforms and oxygen control performance test devices have been built.