Вентиляція, освітлення та теплогазопостачання
Постійне посилання на фондhttps://repositary.knuba.edu.ua/handle/987654321/77
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Документ Methods of Jet Control in Ventilation(КНУБА, 2017) Mileikovskyi, V.Inlet jet parameters are one of the influencing factors on microclimate parameters in rooms. There are many solutions of air distributing technique. Some of them are widespread; others are special purposes solutions and applied on sporadic objects. Nevertheless, there is not enough detailed classification of jet control methods, used in the air distributing solutions. In this work, such classification is proposed, based on thousands of inventors certificates and patents. For easier classification, the methods are systematized by four main groups: with flow turbulization, without significant turbulization, with flow stabilization and combined. Possibilities of jet range change is also shown. This classification is upgradable during the development of air distribution technique.Документ Ensuring Room Air Exchange for Exercises(КНУБА, 2019) Kapalo, P.; Vozniak, O. T.; Yurkevych, Yu.S.; Myroniuk, Kh. V.This paper presents the documentary part of the study of the effect of human physical activity on the microclimate of the premises. In gyms, ventilation requirements are higher than in conventional living quarters. Today, a lot of attention is paid to a healthy lifestyle. In cities where the environment is polluted with exhaust gases of vehicles, it is not recommended to go in for sports in urban parks. For this reason, a variety of simulators, including cycling, are used. When using simulators, indoor air quality deteriorates. The purpose of the study is to determine the amount of pollutants released in the room by means of experimental measurements and calculations, as well as determination of the required air exchange on the basis of the determined quantities. Such low quality of the internal environment can cause a decrease in human productivity, drowsiness, fatigue, and may also be the cause of various diseases. In this paper, an experimental measurement is documented, during which various motor activities of one person took place – sedentary administrative activity and exercise bike. Experimental measurements took place in two stages in winter. On the basis of the measured internal air parameters, the required airflow is calculated for both cases. Measured indoor air parameters (temperature, relative humidity and carbon dioxide concentration) are documented in figure. Estimates can be used to select equipment for conditioning in gyms. On the basis of experimental measurements, we argue that the CO2 concentration increases by 3.2 times in the case of a stationary exercise bike compared to sitting work. However, atmospheric air (m3 / year) – 5 times more.