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Information × Registration Number 0212U007619, 0111U008033 , R & D reports Title Developing energy saving technologies based on the gasdynamical effect in installations of combined energy generation popup.stage_title Head Konovalov Dmytro Viktorovich, Registration Date 06-04-2012 Organization National university of Shipbuilding named after admiral Makarov popup.description2 Object of researches energy-saving technologies based on gas-dynamic effect for the plants of combined generation of energy. The purpose of work - development of energy-saving technologies based on the gas-dynamic effect for the plants of combined generation of energy, implementation of the developed technologies in the systems of marine power plants waste heat utilization, development of methodology of systems' design that provides a 10-15% reduction of fuel consumption. Methods of investigation - method of thermodynamic, heat transfer and hydrodynamic calculations. Theoretical results: the reserves of reduction of energy resources consumption in marine power plants by utilizing their waste heat and rationale of the hypothesis to improve their effectiveness using gas-dynamic effects, have been identified; applicability of gas-dynamic compression in the systems of waste heat of engines and marine power plants exhaust gases, in particular in the contours of overexpansion to improve energy efficiency of the units and in the supercharging systems of internal combustion engines has been proved; mathematical models of heat-hydrodynamic calculation of the process of transforming of waste heat in phase change in the presence of gas-dynamic effect have been developed. The peculiarity of the mathematical model is that it takes into account the processes of gas-dynamic compression as well as change of local intensity of heat transfer during boiling of refrigerant in the tubes; methods of heat-hydrodynamic calculation of the processes of waste heat transformation in phase change in the presence of gas-dynamic effect, which provide the optimal parameters of the working media at the entrance to termopressor, which allows to maximize the effect of gas-dynamic compression have been developed; the regularities of phase changes in the presence of gas-dynamic effect, which determine the energy losses in forward and reverse cycles as well as transforming of waste heat of marine power plants into cold. Applied results: principles of rational organization of transforming of waste heat in phase change using the gas-dynamic effect and refrigerating machines operation which provides minimal energy waste in forward and reverse cycles and consequently deep disposal of secondary energy resources have been identified; circuit technology solutions of systems using gas-dynamic effect in marine power plants for air cooling in the supercharging internal combustion engines have been developed and circuit solutions of termopressor systems for contours of overexpansion of gas turbine unit have been proposed; effectiveness of natural refrigerants for using in refrigerating units with termopressors has been analyzed. Effectiveness of application of results: methods of heat-hydrodynamical calculation of processes of transformation of waste heat in phase change in the presence of gas-dynamic effect, optimal parameters of termopressors operation which provide decreasing a fuel consumption. Field of application of results - diesel and gas turbine engines, systems of trigeneration, refrigerating machines and other objects of stationary and transport power engineering. The basic technical and economic parameters of systems: high energy efficiency, decreased fuel consumption and operational reliability. Product Description popup.authors Акімов О.В. Андрєєв А.А. Бойко О.В. Елгербі Рамі Елгербі Рамзі Казанцева В.Є. Коломийченко К.В. Коновалов А. В. М.В. Мішин Морозова Г.С. Охотін С.О. Радченко А.М. Радченко М.І. Радченко Р. М. popup.nrat_date 2020-04-02 Close