Ensuring Microclimate Parameters in the “Dobryi Likar” Medical Center in Lviv.
Students Name: Serediuk Danylo Ihorovych
Qualification Level: magister
Speciality: Heat and Gas Supply and Ventilation
Institute: Institute of Civil Engineering, Infrastructure and Life Safety
Mode of Study: full
Academic Year: 2025-2026 н.р.
Language of Defence: ukrainian
Abstract: In this master’s work, microclimate systems are designed for the hospital "Dobry Likar" in Lviv. The object of the study is the premises of the hospital "Dobry Likar" in Lviv, a one-story building in which 3 air ventilation and air heating systems will be designed. The subject of the study is the microclimate parameters (temperature, humidity, air purity) in hospital premises, energy efficiency of ventilation and air conditioning systems with heat recovery. The purpose of the study is to design microclimate systems that meet strict sanitary and hygienic requirements for medical institutions. Determination of the efficiency and economic feasibility of using a supply and exhaust ventilation system with heat recovery to reduce operating costs. During the work, a thermal engineering calculation of the building was performed, air exchange for various departments of the hospital was determined in accordance with regulatory documents. The main equipment was selected and calculated: supply and exhaust units with recuperators, heating devices, air conditioners. The feasibility study confirmed a significant reduction in energy consumption due to the utilization of waste heat, which provides economic benefits of the designed system. In-depth theoretical and practical studies of the influence of temperature, relative humidity, air exchange rate, air velocity and air cleanliness on the course of medical processes and sanitary and hygienic regime were carried out. The calculations made it possible to analyze the heat input from the enclosing structures, medical equipment, lighting, as well as anthropogenic heat emissions from patients and staff. The aerodynamic aspects of the organization of air exchange were analyzed in detail, in particular: the scheme of air supply and removal, the formation of clean and semi-clean zones, the prevention of reverse air flows and the mixing of air masses in sterile zones. The work considered options for ventilation and air heating systems that allow to ensure a stable microclimate, including precision systems, central air conditioners, ventilation units with heat recovery , laminar ceilings for operating rooms and modular supply and exhaust systems. Special emphasis is placed on the use of high-efficiency filtration systems (HEPA H13–H14), since air quality directly affects the risk of nosocomial infections. The possibility of using energy-efficient technologies was analyzed - recuperators, inverter compressors, frequency converters, automation and dispatching systems (BMS). The work uses engineering calculation methods, including determining the necessary air exchange parameters, thermal analysis of enclosing structures, selection of ventilation equipment and modeling of microclimatic processes. For complex premises, primarily operating rooms and intensive care units, CFD modeling options are considered to assess air flows, possible stagnation zones, velocity distributions and zoning of the premises. Keywords – hospital microclimate, ventilation, air conditioning, heat recovery, sanitary standards, air exchange, technical and economic calculation. 1. DBN V.2.6-31:2006 Thermal insulation of buildings.-K.:2006.; 2. DSTU-N B V.1.1-27:2010 “Building climatology”; 3. DBN V 2.2-15-2005. "Buildings and structures. Residential buildings. Basic provisions", Kyiv, 2005.; 4. DBN V.2.2-13-2003. "Buildings and structures. Sports and physical culture and health facilities", Kyiv, 2004.; 5. Zhukovsky S.S., Labay V.Y. Power supply systems and microclimate of buildings and structures: Textbook for VZO.-Lviv: Astronomical and geodesic society, 2000.-259p.; 6. Zhukovsky S.S., Dovbush O.M. Ventilation of premises.- Lviv: Publishing house of the National University "Lviv Polytechnic", 2007, 476 p.; 7. DBN V.2.5-67:2013. Heating, ventilation and air conditioning.- K.:2013; 8. DBN V2.5.64-12; DBN V.2.5-56-2014 "Fire protection systems"; 9. NAPB A.01.001-2014 Fire safety rules in Ukraine; 10. DSP 3.3.6-037-99 Sanitary standards for industrial noise, ultrasound and infrasound 11. GOST 12.1.007 System of occupational safety standards. Hazardous substances. 12. DSTU B V.2.7-43 Heavy concretes. Technical conditions 13. DBN V.2.5-39 Engineering equipment of buildings and structures. External networks and structures. 14. DBN V.2.2-24:2009 Buildings and structures. Design of high-rise residential and public buildings 15. Ventilation of premises. Methodological instructions for the implementation of a course project on the course "Ventilation" / S.S. Zhukovsky, O.M. Dovbush, O.T. Voznyak - Lviv: Publishing House of NU "LP", 2009 - 79 p; 16. Catalog Vents; 17. NPAOP 0.00-1.76:15 "Safety rules for gas supply systems