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Information × Registration Number 0223U000722, 0121U110803 , R & D reports Title Heat transfer, hydrodynamics and instability of the heat carrier in innovative climatization systems of the house of 0-energy popup.stage_title Head Hotsulenko Volodymyr V., д.т.н. Registration Date 19-01-2023 Organization Institute of Engineering Thermophysics of NAS of Ukraine popup.description2 The object of the research is the heat supply system of the 0-energy house and individual elements of its heat engineering equipment. The subject of research is non-stationary and quasi-stationary processes of complex heat exchange with the effects of instability of heat carriers flows in the hydraulic circuits of the heat supply system. The purpose of the work is to analyze the results of complex studies of heat exchange processes and hydrodynamics of the heat carrier in individual circuits of climatization systems of modern energy-efficient buildings of various types and purposes (including passive-type buildings, "0-energy", etc.) in order to optimize the parameters of their operating modes and prevent the occurrence of phenomena of instability of the heat carrier flow in individual hydraulic circuits. Research methods are experimental natural studies using an automated measuring complex. Algorithms for constructing periodic solutions of nonlinear dynamic systems with constant and variable lagging arguments were developed, which were used to control thermoacoustic oscillations. The methods of self-oscillation stabilization with the combined action of the delay mechanisms of negative thermal resistance are analyzed. A scientifically based methodology for analyzing the processes of heat exchange and hydrodynamics of the heat carrier in individual circuits of the climatization systems of modern energy-efficient buildings of various types and purposes (including passive-type buildings, "0-energy", etc.) has been developed in order to optimize their operating modes and prevent the occurrence of instability phenomena heat carrier flow in individual hydraulic circuits. Methods of flow stabilization with the combined action of partial throttling mechanisms and negative thermal resistance are considered. Product Description popup.authors Bozhko Ihor K. Goncharuk Svitlana M. Hotsulenko Volodymyr V. Lysenko Oksana M. Nedbailo Oleksandr M. popup.nrat_date 2023-01-19 Close