REVIEW OF RESULTS AND METHODS OF COMPREHENSIVE RESEARCH OF EVIEW OF RESULTS AND METHODS OF COMPREHENSIVE RESEARCH OF WORKING SUBSTANCES OF FLUOROORGANIC COMPOSITION OF POWER PLANTS ORKING SUBSTANCES OF FLUOROORGANIC COMPOSITION OF POWER PLANT

Fluorocarbon substances are most widely used as dielectric fl uids in technologies of microelectronics, fi re extinguishing agents, heat transfer fl uids and working substances of refrigeration and heat pumping equipment. The paper examines the prerequisites for using fl uorocarbon working fl uids (FWF) as a working fl uid (instead of water) in turbine cycles of converting thermal energy into electrical energy for newly developed advanced nuclear power plants (NPP). The results and methods of research of chemical and physical properties of FWF in the range of operating parameters of power plants (at temperatures up to 550ºS), as well as their radiation stability are analyzed. It is shown that using domestically manufactured mass spectrometers with adjustable ionization energy is a simple and effi cient method for analyzing the state of FWF. Information is provided on results published in available literature, as well as on results of the authors’ own research on thermal stability, thermal properties, processes and confi guration of the thermodynamic cycles for fl uoroorganic composition substances. It is established that, with such known advantages and benefi ts of FWF as non-toxicity, non-fl ammability, heat resistance, favorable thermodynamic properties, etc., some chemical elements (silicon and titanium) making part of structural materials at high temperatures can be "catalysts" of thermal decomposition. It is concluded that, based on the accumulated information, a database can be generated containing data required for designing FWF-based plants, and a number of technological and environmental advantages are achieved with their introduction in the thermal and power facilities of reactor plants with a liquid heat transfer metal.

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