Abstract
A numerical model of the microclimate and air quality in the premises of an Orthodox church is built in STAR CCM+ software. The building of the Church of the Nativity with a capacity of 900 people in St. Petersburg was adopted for modeling. The model takes into account features of architecture, heating equipment, the number of people and candles. There is a warm floor in the prayer hall to compensate for the loss of heat. The supply of fresh air in the serviced area is provided by inclined falling jets, and the removal of air is provided through the transom. The distribution of velocity and temperature fields and concentrations of CO2 in the main premises of the church (vestibule, prayer hall, altar) was obtained under non-stationary operation and full capacity of the church. The conclusion was made about the provision of normalized microclimate parameters in the premises of the church with the adopted design solutions for heating and ventilation systems.
Highlights
Ventilation and air conditioning systems determine the state of the microclimate and air quality in the premises
A numerical model of the microclimate and air quality in the premises of an Orthodox church is built in STAR CCM+ software
The conclusion was made about the provision of normalized microclimate parameters in the premises of the church with the adopted design solutions for heating and ventilation systems
Summary
Ventilation and air conditioning systems determine the state of the microclimate and air quality in the premises. The air quality in the premises of public buildings is ensured by the necessary level of ventilation (the amount of air exchange in the premises), which ensures the permissible values of carbon dioxide (CO2) in the room [1]. For checking of the adopted design decisions and assessing the possibility of providing thermal comfort and air quality, numerical modeling methods are used. This is especially necessary for complex, atypical buildings [2-13]. It is necessary to take into account the conditions of the services, the presence of icons, frescoes, art paintings, and other interior items, which are often of historical and artistic value [8]
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