Numerical modeling of the microclimate and air quality of an Orthodox church in Saint-Petersburg

Saint-Petersburg State University of Architecture and Civil Engineering, 2-nd Krasnoarmeiskaya st. 4, 190005, St. Petersburg, Russia

^* Corresponding author: Inna.suhanova@mail.ru

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.