Designing of microclimate support systems in the educational complex No 106 in Dnipro
Students Name: Panchyshyn Andrii Ivanovych
Qualification Level: magister
Speciality: Heat and Gas Supply and Ventilation
Institute: Institute of Civil Engineering and Building Systems
Mode of Study: full
Academic Year: 2020-2021 н.р.
Language of Defence: ukrainian
Abstract: Panchyshyn A.I., Piznak B. I. (supervisor). Designing of microclimate support systems in the educational complex No 106 in Dnipro. Master’s thesis. - Lviv Polytechnic National University, Lviv, 2020. Extended abstract. This master’s thesis provides designing of microclimate support systems in the premises of the educational complex using modern and highly efficient heating equipment and materials. The source of heat supply of the educational complex is a separate boiler room. In the basement "0-27" there is an individual heating point, where the equipment for connecting the heating system to the heating network and preparation of hot water for the hot water supply system is located. The project envisages the installation of a two-pipe water vertical heating system with lower dilution of main pipelines. Air supplying to classrooms with up to 20 children, according to DBN B.2.2-3: 2018 is carried out through adjustable VENTAIR ventilators in the windows, as well as by opening the window sash and by flowing from adjacent rooms. The supply and exhaust ventilation system with recuperation is designed in the assembly and sports halls. The installation is located in the attic in the ventilation chamber. A separate supply and exhaust unit with recuperation, which is of the suspended type and is mounted under the ceiling of the cooking workshop, has been designed for the metal and wood processing workshop and the cooking workshop. A supply and exhaust ventilation system has also been designed to ventilate the dining room. There is a separate fuel on natural gas, which provides heat to the school for heating, ventilation and hot water supply. The heat carrier is transported to the educational complex by a thermal network, which is connected to the heating system by means of an individual heating point. IHP is located in the basement. The heating network is connected to the heating system according to an independent scheme. The scientific part of the work is devoted to the use of alternative energy sources, in particular such as groundwater heat exchanger. Due to the passage of outside air through the ground heat exchanger, or a system of collectors laid in the ground at a depth of 1.5-2.5 m, the ability of the earth to store energy is used. The principle of operation of the ground heat exchanger is to use the soil temperature, which is kept at 8 ° (at a depth below the average in the area), to heat in winter or cool the air in summer, which passes through the system of collectors. Experience shows that thanks to ground heat exchanger it is possible to raise the temperature of the air entering the room to 22 ° C in winter and to lower it to 20 ° C in summer. The effect is not only to increase the comfort of the room, but also significantly reduce energy costs. In this way, on the one hand, you can save on heating costs, and on the other hand, in the case of large facilities, you can reduce the investment costs associated with the air conditioning system. The advantages of such systems are that the geothermal heater can be installed in any area, you can get an unlimited amount of heat, the system does not pose a danger to humans and the environment, minimal operating costs. However, the disadvantages are the high cost of equipment and installation. The heating system will pay off no earlier than 7-8 years. The possibility of application of the system of ground heat exchangers for heating of supply air for ventilation installation SV-1 is investigated in the work. Simulation of ground heat exchange is performed in a specialized program "REHAU GAHED" to calculate the scheme and parameters of heat transfer from soil to air passing through the ground heat exchanger system. According to the calculation, the required amount of supply air for the system SV-1 L = 3830 m3 / h. Study object - educational complex No 106 in Dnipro Scope ofresearch - microclimate support systems, ground heat exchanger. Goal of research - design of systems for ensuring the microclimate of school with the possibility of using a ground heat exchanger for heat transfer from soil to air. The simulation of ground heat exchange performed with the help of the software complex showed that ground heat exchangers with a certain effect can be used to heat the supply air that passes through the system, while the amount of heat and cold will be approximately the same. Key words: ventilation, ventilator, air exchange rate, ground heat exchanger, supply air. References 1. 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