Technical and technological aspects of the use of the air purification system in livestock premises

Abstract

Purpose. Determination of technical, technological and energy aspects of the use of electrical means for purification of the air of livestock premises from harmful impurities. Methods. Methods of system analysis of world experience in the use of technical means for air purification, mathematical modeling, engineering methods of modeling and generally accepted experimental studies of electrical means for air purification, analysis of the results of production tests of air purification systems under different conditions of application were used. Results. In order to ensure the normative parameters of the air and purification from pathogenic microflora and most types of harmful impurities of chemical and biological origin in industrial, agricultural, medical, educational, public and other premises, an air purification system (APS) using ultraviolet radiation and ozonation is proposed, technical, technological and energy aspects of its application in livestock and other industrial premises, dependencies for the calculation of basic technical indicators are given. Conclusions 1. The use of the combined action of UVB radiation and ozone provides a significant increase in the efficiency of air purification from harmful impurities of chemical and biological origin due to the acceleration of the decay of ozone molecules, the formation of a high concentration of oxygen atoms, which leads to the intensification of oxidation of harmful impurities (photooxidation), as well as a decrease in the concentration of ozone at the outlet of the installation and in the room. 1. To achieve a bactericidal efficiency of more than 95 % by the purification system, it is necessary to double the radiation power: to achieve APS with an air capacity = 1 thousand m3/h of bactericidal efficiency = 90 %, the required power of bactericidal radiation = 93 W, and for = 99 % – = 186 W, therefore, it is advisable to apply a feasibility study in agricultural production facilities. 1. According to the results of production tests of the energy-efficient ventilation system with the use of APS, it was found that the efficiency of ammonia cleaning was 45–60 %, and the reduction of energy consumption when creating a microclimate during the heating season – up to 80 %. Keywords: ultraviolet light, ozonation, photo oxidation, air purification, microclimate.