The purpose of this study was to evaluate the influence of the design of a curved channel on the gas dynamics and heat transfer of turbulent air flows in the supply system. The thermal anemometry method was used to obtain local and average data on the air flow velocity and heat transfer coefficient in the supply system. It has been established that the intensity of turbulence of the air flow in the supply system varied in the range of ±15% for curved channels with different cross-sectional shapes. It was revealed that in the supply system with profiled channels, there was an intensification of the local heat transfer coefficient in the range from 5 to 30% compared to the basic design.