Substantiation of technical and technological parameters of the electrical system of air purification of livestock premises from harmful impurities

Abstract

Annotation Purpose. Establishment of technical and technological parameters of the electrical system of air purification of livestock premises from harmful impurities to achieve maximum energy efficiency of their application. Methods. Methods of analysis, mathematical modeling and engineering methods of calculation of ultraviolet bactericidal installations are used. Results. The requirements to the parameters of the microclimate of livestock premises, concentrations of harmful pollutants entering the air due to the life of animals and the technological process of their maintenance, methods of cleaning and disinfection of the air are analyzed. The method of air purification with complex application of ultraviolet radiation and ozone in bactericidal installations of the closed type (recirculators) is offered, the rational structural and technological parameters of bactericidal recirculators for cleaning the air of animals from harmful impurities are substantiated: the power of UV-C radiation, the performance of the ozone generator, the operating modes of bactericidal lamps and ozonators. The results of production tests of the experimental sample of bactericidal recirculator in the premises of the rabbit farm are given. Conclusions 1. The rational value of the specific power of bactericidal radiation is = 65–121 W/thousand m3 of air passing through the irradiation chamber. 2. The specific productivity of the ozonator to ensure the purification of air from harmful impurities in the presence of people in the room is = 100– 200 mg/h, and for complete cleaning and mercurization of the premises – = 100–500 g/h. 3. For optimal operation of bactericidal lamps, achieving maximum cleaning and disinfection of air, as well as preventing excess of ozone concentration in the air of the working area of the premises, it is necessary to use joint use of ozone-free bactericidal lamps and ozonators with automatic indoor air control system. Keywords: ultraviolet, ozonation, recirculator, air purification, UV-c radiation parameters, ozone generator.