Open AccessFEATURES OF VENTILATION SYSTEMS IN AUDITORIUM
Author(s) -
Darya Abramkina,
Gleb Petrov
Publication year - 2021
Publication title -
stroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
eISSN - 2500-1477
pISSN - 2308-0191
DOI - 10.29039/2308-0191-2021-9-1-11-15
Subject(s) - displacement ventilation , ventilation (architecture) , mixing (physics) , jet (fluid) , thermal , environmental science , mechanics , room air distribution , air velocity , meteorology , mode (computer interface) , simulation , computer science , physics , operating system , quantum mechanics
The choice of air distribution scheme is the most important task which determines indoor air quality, comfort thermal mode of the room and effectiveness of ventilation systems. The article presents comparative analysis of displacement and mixing ventilation systems for large premises. The methodology of the study is based on existing theoretical provisions and standard calculation approach of supply air jets. Multivariate calculations of mixing air distribution in cinema hall are presented. Horizontal jets along room surfaces can not provide required air velocity. In the case of vertical air distribution relative jet area beyond the recommended values. This factor had thus determined the possible formation of circulation contours with high concentrations of harmful emissions. The results of the calculation shows that the speed of the fan jet at the entrance of occupied zone lower than maximum permissible air mobility. The required temperature is achieved by using all air-distributing units considered.