Construction and Architecture Construction and Architecture Строительство и архитектура 2308-0191 2500-1477 41925 10.29039/2308-0191-2021-9-1-11-15 05.23.03 ТЕПЛОСНАБЖЕНИЕ, ВЕНТИЛЯЦИЯ, КОНДИЦИОНИРОВАНИЕ ВОЗДУХА, ГАЗОСНАБЖЕНИЕ И ОСВЕЩЕНИЕ 05.23.03 HEAT, VENTILATION, AIR CONDITIONING, GAS SUPPLY AND LIGHTING 05.23.03 ТЕПЛОСНАБЖЕНИЕ, ВЕНТИЛЯЦИЯ, КОНДИЦИОНИРОВАНИЕ ВОЗДУХА, ГАЗОСНАБЖЕНИЕ И ОСВЕЩЕНИЕ FEATURES OF VENTILATION SYSTEMS IN AUDITORIUM ОСОБЕННОСТИ ВЕНТИЛЯЦИИ ЗРИТЕЛЬНЫХ ЗАЛОВ Абрамкина Д. В. Abramkina D. V. dabramkina@ya.ru Петров Глеб Александрович Petrov Gleb Aleksandrovich gpetrov962@gmail.com Московский государственный строительный университет Moscow State University of Civil Engineering 9 1 11 15 https://riorpub.com/en/nauka/article/41925/view

Выбор схемы организации воздухообмена является важнейшей задачей, от решения которой зависит не только качество внутреннего воздуха и тепловой комфорт в помещении, но и эффективность работы вентиляции. В статье приведен сравнительный анализ применения систем вытесняющей и перемешивающей вентиляции для помещений большого объема. Методологической основой исследования являются существующие теоретические положения и стандартные методики численного моделирования приточных струй. Представлены результаты многовариантных расчетов воздухораспределения для перемешивающей вентиляции зрительного зала кинотеатра. При применении горизонтальных настилающихся струй в рабочей зоне помещения не обеспечивается нормативная скорость. В случае вертикальной подачи вентиляционного воздуха с помощью потолочных диффузоров для верхних рядов зрительного зала не соблюдается условие относительной площади приточной струи на входе в рабочую зону. Данный фактор говорит о возможном формировании замкнутых циркуляционных контуров с повышенными концентрациями загрязняющих веществ. По результатам расчета было выявлено, что скорости движения веерных струй на входе в рабочую зону помещения ниже максимально допустимой подвижности воздуха. Требуемая температура обеспечивается при применении всех рассмотренных воздухораспределительных устройств.

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.

 воздухораспределение вытесняющая вентиляция перемешивающая вентиляция приточные струи относительная площадь струи air distribution displacement ventilation mixing ventilation supply air jets relative jet area

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