Heat pumps in HVAC systems for educational institutions on the example of the Educational, Scientific and Research Center "SHAG" in Lviv
Students Name: Mykhailiuk Oleksandr Romanovych
Qualification Level: magister
Speciality: Heat and Gas Supply and Ventilation
Institute: Institute of Civil Engineering and Building Systems
Mode of Study: full
Academic Year: 2022-2023 н.р.
Language of Defence: ukrainian
Abstract: This project develops heating and heat supply systems based on the example of the Educational, Scientific and Research Center. The project envisages the following heat supply systems: an air heating system in the premises of the office center using fan coils; air heating system in the premises of the public catering establishment using fan coils; heat supply system of ventilation units; heating system in the premises of a residential building using radiators A heat pump is assumed as the source of heat at the facility, and a rooftop boiler room operating on electricity is assumed as a backup source of heat. Thermomechanical solutions, solutions for automation of the boiler room, ventilation, water supply and drainage of the boiler room are foreseen and described in this project. Heating systems for heat supply - independent, closed, 2-pipe with forced circulation. Heat is distributed in the boiler room on the distribution manifold. A distribution manifold with separate pumps for each circuit is installed in the boiler room. The scientific part consists in the use of heat recovery from refrigerating machines in the warm period of the year for the needs of DH A big plus of recuperation in such processes is a high energy saving, and as a result, saving the money spent on operating the system in total. Today, search methods to maximize the amount of consumed electricity are becoming more and more popular, and the ever-increasing cost of energy resources turns this search market into a chance of survival for the time being. At the same time, almost all refrigerating units for central or remote refrigerating supply produce a large amount of heat, which in this process of condensation of the refrigerant is mainly released into the environment with the help of air accumulators-condensers. Зм. Арк. № докум. Підпис Дата Арк. 22-МКР-192 - ТГВ The object of the study is to provide a microclimate using heat recovery in a residential building with office premises in the city of Zhytomyr. The subject of the study is the microclimate system in the office space. The purpose of the study: to investigate the heat recovery system from refrigerating machines, and to analyze the payback period. According to the conducted studies, a heat carrier recovery system from refrigerating equipment is used for the needs of hot water supply in the event that the refrigerating unit itself is designed for a large production of cold and in accordance with a large amount of heat carrier for recovery. In the event that heat recovery does not meet the full needs of the hot water supply system, it is not wasted, as the payback period of such a solution will be longer than the life of the refrigeration equipment. Key words: conditioning, recuperation, refrigerating machine. 1. DBN V.2.6-31:2016 Thermal insulation of buildings 2. DSTU-N B V.1.1-27:2010 Building climatology 3. K DSTU B V.2.6-189:2013 Methods of choosing thermal insulation material for building insulation. 4. Internal sanitary and technical devices: Handbook of the designer. Ch1. Heating / V.N. Bogoslovsky, B.A. Krupnov, A.N. Scans, etc.; under ed. N.G. Staroverova and Y.N. Schiller - 4th ed., revised. And add. - M.: Stroyizdat, 1990.-344p. 5. DBN V.2.2-23: 2009 Trade enterprises 6. Zhukovsky S.S., Labai V.Y. Energy supply systems and provision of microclimate of buildings and structures: Training manual for VZO. – Lviv: Astronomical and Geodetic Society, 2000. – 259p. 7. SNiP 2.04.05-86. Heating, ventilation and air conditioning. - M.: TSITP State Construction of the USSR, 1988. - 64p. Зм. Арк. № докум. Підпис Дата Арк. 22-МКР-192 - ТГВ 8. Tasks and methodological instructions for performing calculation work from the course "Air conditioning and refrigeration" on the topic "Calculation and selection of a local autonomous UCP for the computer hall". (Compiler: V.Y. Labai). 9. Catalog of climate systems "Mitsubishi Electric", 2016. 10. Ionin A.A. Gas supply. - Moscow: Stroyizdat, 1989. 11. Staskevich N.L., Severynets G.N., Vygdorchyk D.Ya., Handbook of gas supply and gas use - L.: Nedra. 1990 year. 12. DBN V.2.5-20:2018 13. Designing heat-generating facilities of small and medium productivity: methodological instructions for the coursework from the course "Heat-generating facilities" for students of the basic direction 6.060101 "Construction" / Acc.: Yurkevich Yu.S. – Lviv: Publishing House of Lviv Polytechnic, 2013. – 28 p. 14. Viessmann Vitodens 200-W design manual – 5/2017. 15. "Vents" ventilation systems, catalog - 2022. 16. Channel fans "Ruck", catalog - 2022. 17. Ventilation units "Remak AeroMaster XP" catalog - 2.2.2021