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Information × Registration Number 0223U000241, 0121U100617 , R & D reports Title Introduction of energy efficient systems in Ukraine popup.stage_title Head Hrankina Viktoriia V., Кандидат технічних наук Registration Date 05-01-2023 Organization O.M. Beketov national university of urban economy in Kharkiv popup.description2  In the work, a study of technological losses of hot water in the system of centralized hot water supply for the existing technological scheme of the city of Kharkiv was carried out, and quantitative indicators of minimum and maximum losses of hot water were determined. According to the obtained results, options for modernization of the centralized hot water supply system are proposed in order to reduce technological losses, taking into account the results of research. The results of the study of heat transfer and hydraulic resistance in strip-flow channels of panel plate heat exchangers are given. The basic equations in the criterion form for calculating the heat transfer and hydraulic resistance coefficient per unit length of the channel are obtained. The experimental model and experimental setup are described. The possibility of promoting and introducing heat pumps into the national economy as the main, more accessible, alternative sources of energy necessary for human life is considered. A more complex model is mathematically formulated with a simultaneous change in the temperature of the coolant and room air with the development of the first stage of finding the general solution of the system of differential linear inhomogeneous equations. In order to increase the efficiency of planning the consumption of material, technical and labor resources, it is advisable to plan them for heating and non-heating periods, by month of the year, based on the calculation of the forecast number of damage to the pipelines of the heating network, based on the calculated dependences of the failure flow parameter. Product Description popup.authors Hrankina Viktoriia V. Milanko Olga M Milanko Viktoriya A Romashko Oleksandr V Tkachenko Roman B. Khrenov Oleksandr М. Iuzbashian Anna P. popup.nrat_date 2023-01-05 Close