Ensuring the microclimate of the pedestrian crossing of the international road pass "Solotvyno" in the Tyachiv district of the Zakarpattia region
Students Name: Shumelda Maksym
Qualification Level: magister
Speciality: Heat and Gas Supply and Ventilation
Institute: Institute of Civil Engineering and Building Systems
Mode of Study: full
Academic Year: 2023-2024 н.р.
Language of Defence: ukrainian
Abstract: In the master’s thesis, the design of modern systems for ensuring the microclimate of the pedestrian crossing of the international road crossing "Solotvyno" in the Tyachiv district of the Transcarpathian region is carried out using traditional and renewable energy sources. In the house there is fuel from two Kolvi gas water heating hanging boilers Duo 100 with a nominal capacity of 96 kW, which provide heat supply to the heating and ventilation system with water with a temperature 90 ?in the supply line and70 ? in the return line in the calculated mode of heat supply, and together with solar thermal collectors Viessman Vitosol 100-FM and solar electric panels Vitovolt 300 M280OA heat water in a three hundred liter thermal accumulator to meet the needs of hot water supply. Heating devices - Vonova steel panel radiators with side connection of Vogel&Noot . Regulation of heat transfer to the radiator is carried out using a Herz thermostatic valve with a thermal head . The pipelines of the heating system are designed polyvinyl chloride Kantherm _ and steel water and gas pipelines. Hot water with a temperature 55 ? is supplied to the bathrooms from a 300-liter thermal accumulator, which is heated by thermal solar collectors, photo panels , and gas boilers. Ventilation of the house is mechanical supply and exhaust. Air flow is carried out through Mixvent DCQ 6’’ diffusers in operating rooms, service rooms with the help of a hanging air conditioner Remak AeroMaster FP 4.0 with a capacity of 2,600 m 3 / h. And removal - from service, technical premises and bathrooms with the help of Mixvent TD channel fans . To ensure optimal parameters m microclimate of workplaces in the operating theaters Panasonic CS-E15DB4EW cassette air conditioners with a productivity of 3500 m 3 / h and an electric power of 1.3 kW are installed. The removal of gas combustion products from boilers is carried out through chimneys O130 mm into brick smoke channels, the inner walls of which are protected by a box made of galvanized steel b=0.8 mm. To prevent cold air from entering operating rooms, Remak Door Master C1-E1-200 air thermal curtains with a capacity of 2400 m 3 / h, thermal power of 9 kW and electric power of 9 kW are installed at the entrances. In the scientific part of the work, attention is paid to the issue of heat supply of buildings with ecologically clean sources using solar energy. Taking into account that the priority in construction is buildings with low energy consumption and with an increased area of glazing, it is necessary to propose constructive solutions for improving the transparent facades of buildings. Such a solution based on the use of solar energy is a solar collector integrated into the transparent facade of the building. This will save space for its independent installation and will enable the building structure to generate consumer energy. Stationary methods of solar collector research based on the Hottel - Whillier - Bliss model were used to build the mathematical model . The solar power supply system using a thermal photovoltaic hybrid solar collector is considered . During the study of the solar collector , its thermal power, W/m 2 , was determined every 10 minutes. The nature of generation was variable, which may be related to temperature fluctuations at the entrance to the solar collector . After all, the solar heat supply system with a solar collector integrated into the building facade system worked in direct flow mode. The coolant was supplied directly from the cold water network pipeline. As a result of the research, the following conclusions were formulated: the integration of solar collectors into the external enclosures of the building is becoming more and more relevant due to the lack of useful land area. For engineering calculations, it becomes possible to determine the amount of incoming solar radiation for the orientation of the facade, in which the solar collector is integrated. For the proposed design of the hybrid thermal and photovoltaic solar collector , theoretical formulas for the construction and calculation of the energy characteristics of the solar energy supply system were obtained. When testing the solar collector for water supply from the network pipeline and the average statistical intensity of simulated solar radiation of 600 W/m 2 , its efficiency reached 0.37. This design is recommended for widespread implementation in energy-efficient buildings and structures. The object of the study is the pedestrian crossing of the international road pass "Solotvyno" in the Tyachiv district of the Zakarpattia region . The subject of the study is the parameters of the microclimate of the premises of the administrative building. The purpose of the research is to design modern systems for ensuring the microclimate of pedestrian crossing premises. Heating, hot water supply and ventilation systems are designed . The aim of the scientific work was to provide heat to buildings with environmentally friendly sources using solar energy and to determine the amount of solar radiation received by a vertically located collector in Lviv. Key words - external protection, heat carrier parameters, heat source, solar thermal collector, photopanel , boiler, energy saving, thermal curtain.