Justification of the parameters of the system for removing ammonia from the pig-breeding module

Abstract

The issues of selecting parameters and operating modes of a system designed to remove ammonia from a pig-breeding module are considered. The aim of the work was to justify the scheme of the suction device layout of exhaust ventilation, which ensures the removal of ammonia from the animal keeping area at the lowest energy costs and maximum economic effect. The analysis of the effect of gases on the animal organism is carried out. The parameters of the exhaust ventilation system at the maximum air exchange in the pigsty are determined, taking into account the constantly changing parameters of the outdoor air and animal groups. Mathematical models are proposed that describe the dependences of changes in the radius of the spectrum and the active absorption front on the geometric and kinematic parameters of the harmful gas removal system. The method of comparing the layout of the suction pipes was used to identify the most effective scheme for removing ammonia from manure channels. The energy costs of using exhaust systems are determined. A technical and economic assessment of the proposed layout options for suction devices is given. Various layout options for suction devices are considered. Dependencies between the geometric and kinematic parameters of the system are established. Based on the feasibility study, the scheme of the ammonia removal system that provides the greatest economic effect is determined. The results can be used in the development of ammonia removal systems from pig-breeding facilities. The proposed mathematical models make it possible to determine the most rational arrangement of the suction devices for the most efficient removal of ammonia.