Improving of ventilation efficiency at air distribution by the swirled air jets
Orest Voznyak, Olena Savchenko, Nadiia Spodyniuk, Iryna Sukholova, Mariana Kasynets, Oleksandr Dovbush
Abstract
Abstract The article is devoted to decision of actual task of air distribution efficiency increase due to swirled air jets application. The aim of the paper is investigation of swirled air jets, analytical dependencies obtaining for determination of the air velocity attenuation coefficient, aerodynamic local resistance coefficient and noise level from the twisting plates inclination angle; optimization of the twisting plates inclination angle of the air distributor. It has been established that increase of the angle results in the air velocity attenuation coefficient increase and results in decrease of the noise level and resistance coefficient of air distributor. The optimum angle of the plates is determined considering aerodynamic, noise and energy aspects and equals 36°.