Regulation issues of nuclear facilities in the field of nuclear plants chemical (water-chemical) regimes

Regulation issues of nuclear facilities in the field of nuclear plants chemical (water-chemical) regimes

Each stage of the nuclear plant life cycle involves urgent safety tasks, such as equipment resource management, minimizing deposits of corrosion products on equipment, pipelines and fuel assemblies, as well as reducing personnel radiation doses to a reasonably achievable level. At the same time, due to the tendency to increase the duration of the fuel campaign, the designed and practical operating lifespans of existing and under-construction nuclear power plants, implementation of new technical and organizational solutions of water chemistry, as well as the development of projects with innovative types of reactors (reactors with liquid metal coolants, molten-salt reactors) it is necessary to analyze the safety requirements in the field of atomic energy use in order to identify the need for their revision.
The article presents the analysis of safety requirements in the field of atomic energy use in terms of chemical (water-chemical) regimes at nuclear power plants. Based on the results of the analysis, the features of the regulatory framework and problematic aspects of regulating and justifying safety in terms of the chemical (water-chemical) regimes of existing and prospective nuclear power plants are shown.

► Keywords: chemical (water-chemical) regime of nuclear plants, safety requirements in the field of atomic energy use, corrosion of construction materials of equipment and pipelines.

Article language: Russian. Pp. 31–43. [in Russian]. DOI: 10.26277/SECNRS.2025.118.4.003.