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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Broyda Vladimir Aronovich candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Dorofeenko Nikolay Sergeevich design engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC «Production Enterprise «TechVent» The organization address: 421001, Russia, Kazan, Nigmatullina st., 1/47 Sharafeeva Alina Robertovna design engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC «Galaxy Construction» The organization address: 420107, Russia, Kazan, Petersburg st., 65A
Title of the articleNumerical study of the fields of air velocity and temperature in a residential building, taking into account the influence of the natural influx
Abstract.Problem statement. Natural ventilation is widely used in residential buildings. The unregulated natural influx in the cold season leads to an increase in airflow, which complicates the maintenance of mobility and air temperature in the room. In this regard, the study of the mobility and temperature of the air in the room, depending on the natural flow, is relevant. The purpose of the study is to identify the effect of the supply of increasing consumption of cold outdoor air on the mobility and temperature of the air in the living room. Evaluation of this effect is based on numerical simulation of the velocity and temperature fields. Results. The main results of the study are obtained by numerical simulation of the velocity and temperature fields at two external cold airflow rates, standard and twice as high, which occurs in the absence of regulation of natural ventilation. It was established that both at the normative and increased flow rate, despite the increase in the air velocity and a slight increase in temperature deviation, their normative limits are not exceeded. Conclusions. The significance of the results for the construction industry lies in the fact that a doubling of the outdoor airflow does not lead to an excessive increase in air mobility, it remains below the normative limit. The temperatures of the internal air also vary slightly, but when compensating for greater cooling of the room due to an increase in the heat output of the heater, they also remain within the acceptable values.
Keywords.air speed, temperature, flow rate, living quarters, natural influx, numerical modelling.
For citations:Broyda V.A., Dorofeenko N.S., Sharafeeva A.R. Numerical study of the fields of air velocity and temperature in a residential building, taking into account the influence of the natural influx // Izvestiya KGASU. 2020. №2(52) P.89-97.


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