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Information × Registration Number 0223U003712, 0120U101263 , R & D reports Title Development and optimization of energy-saving systems for geothermal ventilation for energy-efficient buildings popup.stage_title Head Basok Borys I., Доктор технічних наук Registration Date 19-06-2023 Organization Institute of Engineering Thermophysics of NAS of Ukraine popup.description2  The object of the study is the heat engineering parameters of operation of the recuperative ventilation system of an energy-efficient building when using soil-air heat exchangers. The purpose of the work is to develop a scientifically based methodology for determining and optimizing the appropriate thermal parameters of the operation of the geothermal recuperative ventilation system based on the use of renewable soil heat for modern energy-efficient buildings of various types and purposes (including passive houses and others). The research methods are experimental field studies using an automated measuring complex and numerical modeling of the parameters of the year-round operation of the air-soil heat exchanger with subsequent comparison of the obtained results with the experimental data. Conducted comprehensive experimental studies and comparing their data with the results of calculations based on the developed numerical model of complex heat exchange processes made it possible to analyze the thermal parameters of soil-air heat exchangers with different pipeline diameters. With the help of the developed numerical model of operation of the air-soil heat exchanger, the calculation of the thermotechnical parameters of the heat exchanger was performed under the condition of using pipelines with different typical external diameters - 110, 160 and 200 mm. The values of air temperature at the inlet to the heat exchanger and air velocity at the outlet were set as initial data. The last value was taken from experimental data and was 5.5 m/s. In the middle of the heating period, the influence of the outer diameter of the pipeline on the linear heat flow is already much more significant. So, when going from a diameter of 110 mm to 160 mm, the linear heat flow increases, on average, by 30%. When going from a diameter of 160 mm to 200 mm, the growth of the linear heat flow decreases to 16%. Product Description popup.authors Belyaeva Tatjana G. Bozhko Ihor K. Goncharuk Svitlana M. Davydenko Borys V. Dubovskyi Serhii V. Kuzhel Liliya M. Lysenko Oksana M. Nedbailo Oleksandr M. Novikov Volodymyr G. Novitska Maryna P. Tkachenko Myroslav V. Hybyna Maryna A popup.nrat_date 2023-06-19 Close