Abstract
Recommendations are given for the selection of the air curtains and the calculation of their parameters for livestock houses of the bovine cattle farms. A block diagram and modular design of an air curtain with a variable direction vector of the air stream and an adjustable slot width have been developed. Experimental data on the speed of the air stream at the exit from the curtain Vc for the range of values of the angle (10-60) between the direction of exit of the air stream from the curtain slot and the opening plane and the data on the values of the air curtain slot width bc (0.05-0.15 m) taking into account changes in wind speed Vw (1-5 m/s) are provided. According to preliminary estimates, the use of the proposed air curtain design will allow a 10-15% reduction in energy costs for maintaining the required microclimate in livestock houses of the bovine cattle farms during the cold season.
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