To simulate the processes of hydrodynamic instability, various schemes for accelerating the contact boundaries of different-density media in various structures of impact pipes are used. Such experiments have their own difficulties, for example, associated with the influence of thin diaphragms that delimit the studied media before the start of movement. In this regard, gas-explosive mixtures with the maximum temperature of the reaction products are extremely promising, allowing both to minimize the destruction time of thin films-diaphragms, and to significantly reduce the size of shock tubes for conducting experiments. The paper presents the results of calculations of the thermodynamic parameters of the explosion products of a stoichiometric mixture of 2C₂H₂+5O₂ during detonation in the models of an ideal explosion, ideal detonation, chemical peak. An example of using the explosion products of these mixtures to study the Richtmayer - Meshkov instability is given.

The paper analyzes the leakage of the¹⁶ N₇ nitrogen radionuclide which occurs in the 1st loop of the KLT-40 reactor which is used at marine transport facilities for various purposes through the steam generator of the nuclear reactor into the second loop into which water is supplied under pressure P_в with a temperature Т_в >> 100 °C. Radioactive nitrogen spreads in the vapor phase and goes through a spiral steam line to the turbine under high pressure P_п, creating unfavorable conditions from the point of view of radiation safety. The content of the specified radionuclide in steam can be detected and evaluated by g--spectrometry and dosimetry methods, by measuring the volumetric g-activity of steam and the dose rate of g--radiation when the steam enters the turbine. The analysis of the observed leakage effect was carried out on the basis of using a simple physical and mathematical model that takes into account the transfer of water, vapor media and the transfer of radioactive nitrogen in the vapor phase, which made it possible to indicate the cause and determine the area of leakage on the spiral steam pipeline, which was determined from the condition of vapor equality and water pressures in steam line. The paper specifies the main areas of the steam generator design allowing measurements of radiation characteristics and the necessary instrumental equipment taking into account the physical characteristics of the environments in which this equipment will operate in its readings.

The article presents the results of studying the density of steel 12Kh18N10T and the coefficient of thermal expansion TEC (α) in the temperature range from 100 to 850˚С. The measurements were carried out using a DIL-405 C dilatometer. Steel 12Kh18N10T will replace traditional TVEL cladding materials, which are made of zirconium material. The cladding made of steel 12X18H10T can be used as a Tolerant fuel. It is shown that the thermophysical properties and accurate dilatometric results of studies of steel 12Kh18N10T make it possible to use steel cladding in fuel assemblies of a VVER reactor. The article presents the results of comparison with similar data from the State Service of Standard Reference Data system.

Technical diagnostics has a strong position in the global engineering community. It is included in the standards and recommendations for both existing and projected nuclear power plants. All foreign operating nuclear power plants are more or less equipped with means of technical diagnostics of reactor installations either from the very beginning or during modernization. Regardless of the diagnostic architecture of the automated control system, whether it is Framatom's local project systems or Westinghouse's centralized systems, diagnostic algorithms are universal. The operating organization of Rosenergoatom Concern JSC pays great attention to the development of technical diagnostics tools. Over the past 20 years, almost all Russian power units have been equipped. This contributed both to improving the safety of operation, and ensuring reliability, and extending the life of existing nuclear power plants. The article presents the authors' classification of technical diagnostics systems, the features of their operation at the Novovoronezh NPP site for a 30-year period of time. Complex, high-tech diagnostic systems are moving into operational practice with great difficulty and skepticism. The systems are slowly being filled with diagnostic knowledge, but our demanding foreign customer will undoubtedly require this diagnostic knowledge.

The article presents the results of identifying pre-failure conditions. The results based on fractal analysis and nonparametric statistics. The NPP equipment units are highly reliable systems for long life cycle. These systems are characterized by slow graduating failures. This happens due to the accumulation of irreversible damage. Standard information measuring systems supply time series. They are traditionally processed by parametric methods. The processing of experimental data can be automated for industrial monitoring of NPP equipment parameters.

The article considers the features of the uranium mining industry development in the context of market fluctuations. The economic factors contributing to the spread of nuclear energy and causing the demand for the products of the uranium mining industry are presented. The competitive advantages of countries in the production and supply of fuel for nuclear power plants are revealed. The conclusion is made about the significant development potential of the Russian Federation (SC "Rosatom") at all stages of the nuclear fuel cycle associated with high-tech repartition of uranium raw materials and nuclear generation. The problem of high capital investments and a long-time lag from the moment of exploration of the deposit to the commissioning of production facilities of the uranium mining industry enterprises is noted. The most profitable investment schemes in the industry are considered taking into account government support.

The paper considers the main provisions of the impression economy, the greatest potential of which is revealed in the tourism business. Selling travelling emotions, adventure hobbies and new knowledge is increasingly economically profitable, and travel companies are expanding their list of offers. Recently, many new, sometimes very strange, types of tourism have appeared. The development of technological progress in the twentieth century was the impetus for the development of an unusual type of tourism - industrial. A separate subspecies of industrial tourism is nuclear. More than a decade after the accident, the Chernobyl zone remains uninhabitable. But even so, it has a future. Officials and tour operators agree that tourism in Chernobyl is not only considerable economic benefits for the country, but also an opportunity to tell the world your story.

The paper actualizes the political, social and economic, cultural foundations of the formation of a culture of industrial safety of industrial enterprises. The structural and substantive aspects of the management's commitment to the goals of industrial safety are revealed. A general analysis of the current regulatory framework defining the methodological foundations for the formation of an integrated safety management system of industrial enterprises in the Russian Federation is proposed.