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Information × Registration Number 0225U002231, (0122U001728) , R & D reports Title Scientific bases and methods of extending the range of loads of pulverized coal boilers to increase the regulatory capabilities of thermal energy popup.stage_title Наукові основи та методи розширення діапазону навантажень пиловугільних котлоагрегатів для збільшення регулювальних можливостей теплової енергетики. Head Cherniavskyi Mykola V., д.т.н. Registration Date 25-02-2025 Organization Thermal Energy Technology Institute Of The National Academy Of Sciences Of Ukraine (TETI NASU) popup.description1 Development of scientific bases and methods for expanding the range of loads of pulverized coal boilers with optimization of their fuel base to increase the regulatory capabilities of thermal energy in conditions of increasing the share of nuclear and renewable generation popup.description2 The purpose of the study is to develop methods for expanding the load range of pulverized-coal boilers with optimization of their fuel base to increase the regulatory capabilities of thermal power in the context of an increasing share of nuclear and renewable generation, taking into account the urgent needs of thermal power during the war. The research methods include theoretical (calculation of furnace processes, dust systems, metal temperature, thermal-hydraulic calculations) and industrial tests on TPP and CHP boilers. It is shown that new RES capacities can partially replace damaged coal-fired power plants, but during the period of investment return, their cost is significantly higher than the cost of electricity from TPPs, which confirms the economic feasibility of TPP restoration. The factors that reduce reliability and limit the range of load control are identified. In particular, the dependence of the upper load limit on air intakes/outflows, as well as the problem of limited performance of dust systems due to insufficient flow of the drying agent through the separator, were established. A mathematical model of the TPP-210A boiler unit converted to gas coal was built, and the zones of critical overheating were determined. The reasons for overheating of the metal of the screens due to pulsations between the pipes were also identified, and methods for their elimination were proposed. Technical solutions were developed for the production of fuel mixtures with coal with excellent characteristics, removal of load restrictions, elimination of flame distortions and thermal damage to screens, as well as for the conversion of anthracite boilers to gas coal. The results were implemented at Trypillia and Zmiiv TPPs, Cherkasy, Darnytsia, and Chernihiv CHPs, which is confirmed by the acts of energy companies and design organizations. They are of significant practical value for ensuring reliable energy supply and can be applied to other TPPs and CHPPs in Ukraine. Product Description popup.authors Duliienko Serhii H. Kosiachkov Oleksii V. Litoshenko Nataliia H. Monastyrova Tetiana M. Provalov Oleksii Yu. Roskolupa Anatolii I. popup.nrat_date 2025-02-25 Close