Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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NUMERICAL INVESTIGATION OF THE NEW WAY OF ROOM CONDITIONING

Denisikhina D.M. 1
1 Saint-Petersburg State University of Architecture and Civil Engineering
The new way of room conditioning is studied in the present paper. In the proposed design, the cooled air at first is directed into an artificially created (by means of horizontal aerodynamic partition) channel and only then enters the room through air-jet devices located within partition. The proposed way of supplying cooled air into conditioning room combines two main mechanisms of space cooling: heat transfer through ceiling surface and cooling by mixing ventilation. Velocity and temperature distributions within the conditioned office space were obtained when applying the suggested way of room cooling. The simulation was performed using STAR-CCM + software which is based on the numerical solution of differential three-dimensional Navier - Stokes equations. Numerical research shows that in investigated case up to 40 % of the total heat loads is possible to assimilate by the ceiling surface, and only the remaining 60 % of loads is assimilated by entering the room through air-jet devices cooled air. It is found that in the occupied area the uniform temperature (23 ° C-24 ° C) and velocity (0.1-0.3 m / c) distributions are observed. Areas with significant velocity and temperature gradients are absent in occupied area.