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Registration Number

0209U008656, 0107U002088 , R & D reports

Title

Study of thermal engineering and power-economical efficiency of heat utilization systems with intermediate two-phase heat transfer agent

Head

Epik Eleonora Yakivna,

Registration Date

25-11-2009

Organization

Faculty of аircraft and space systems NTUU "KPI"

Description

The object of the research is systems of heat recycling with the intermediate diphasic heat-carrier. The research objective is the creation of scientific base for rational designing of highly effective heat recycling systems with the intermediate diphasic heat-carrier. The research methods is the analysis of an existing condition on work subjects, theoretical and experimental studying of processes characteristics in considered systems, carrying out an optimisation of systems characteristics, the comparative analysis versus traditional systems, working out and the analysis of new circuit-constructive decisions. Thermalphysic and technological merits and advantages of evaporate-steam type's heat-recovery systems are revealed and proven. Specific technological decisions for supporting the effective and reliable heat-recovery system's functioning are developed. Results of thermalphysic limitations research of utilization system's heat-transmitting ability of evaporate-steam type's heat are received. Fundamental points of methods of heat and aerohydrodynamic calculations for heat-recovery systems with medium biphase heat-transfer are developed. Fundamental heat-engineering characteristic's optimization of evaporate-steam type's heat-recovery systems is conducted and regularities for optimal constructive parameter's estimation from the view of minimization the thermic and aerodynamic resistance of systems are received. The comparative analysis of heat-recovery systems with medium biphase heat-transfer and traditional recuperative systems is made. Analytical ratios of mentioned system's heat-transmitting characteristics depending on constractive parameters and process's thermalphysic characteristics are received. The original scientific and technical decisions for constructive schemes of heat-recovery system with medium biphase heat-transfer of types "gas-gas", "gas-liquid" and "gas-steam" are developed. Criterions of power-economical efficiency and indicators of power-saving effect are worked out and analyzed under introduction of heat utilization systems. Scientific and technical level of the performed work meets the world standard. The reduction of capital and operational expenses and improvement of power efficiency indicators of the capital equipment are expected by introduction the systems of warmth recycling with the intermediate diphasic heat-carrior. The results of this study can be used by designing, planning, industrial, assembly-fixing organisations and enterprises running practically in all branches of economy: manufacture and distribution of the electric power, gas and water, manufacture of cars and the equipment, metallurgical manufacture, chemical manufacture, manufacture of vehicles and the equipment, building, process industry - anywhere sources of thermal emissions exist.

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Гершуні О.Н.
Ніщик О.П.