The Energy Demonstration Pilot Complex (ODEK) with the BREST-OD-300 reactor, which is being built in Seversk, is to have a digital twin. ODEK, being built as part of the Proryv (Breakthrough) project in Seversk, Tomsk region, is intended to demonstrate a closed nuclear fuel cycle at a single site. Ultimately, it will include a fuel fabrication-refabrication module producing mixed uranium-plutonium nitride fuel (MNUP), as well as the fuel reprocessing module and the BREST, which is a lead-cooled fast neutron reactor. Completion of work under the contract is scheduled for 2024.
Separate parts of the digital twin system are ready: the AA Bochvar Inorganic Materials Research Institute (VNIINM), the Snezhinsky Nuclear Center and the Tomsk Polytechnic University have developed the Wizart and Code TP software systems. These are computer codes simulating the technological processes of closing the fuel cycle, including fuel fabrication and refabrication, reprocessing of spent nuclear fuel and management of radioactive waste, from the design and justification of the dismantling safety. The TP code can also be used as a simulator in the training of ODEK operators, explained Olga Schmidt, project manager and VNIINM expert. “The second software package, Wizart, is more of a predictive conceptual model. We are developing it with a team of RFNC-VNIITF mathematicians and programmers.
TP Code helps to manage production processes, and Wizart to coordinate production processes, design equipment, buildings and structures, plan staffing and staff workload, perform economic calculations and prepare data to substantiate nuclear and radiological security using neutron physical codes, she noted. “TP Code is relatively easy to use. You only need to be a good technologist to master it. With Wizart, it’s more difficult. The separate functions are easy to use, but to master the complex whole requires serious qualifications We are now trying to make it more user friendly.
Meanwhile, at the ODEK site, construction of the reactor building continues, installation and piping of equipment continues in the fuel fabrication and refabrication module, electrical installation is underway, and the first part of the administrative building will be commissioned in the near future. coming. The general contractor – JSC TITAN-2 – said that the work is proceeding on schedule. Some 400 specialists and more than 40 pieces of equipment are involved in the construction of the reactor building and surrounding structures: these include mixers, tower cranes, a concrete distribution boom and other equipment.
Image: BREST reactor under construction in Russia (Photo credit: TVEL)