Increasing the preservation ability of agricultural machinery when storing indoors

Agricultural production differs from other branches: the majority of agricultural machines and mechanisms, including the large-sized, expensive machinery, stand idle for a considerable part of the year. A solution which allows for an increase in the reliability measures of machinery preservation with indoor storage is proposed for the conditions of Siberia. The main cause for the unfitness of machinery for its further use after removal from storage is corrosion. As a rule, the reason for corroding processes in a closed space is condensation. The article proposes a possible solution of this problem by using an automated ventilating system which controls the smooth variation of air temperature in the closed space, minimizes the risk of formation of moisture condensation, reduces the atmospheric humidity and improves the microclimate in the closed space. Mathematical models at theoretical level and practical observations of the machinery, stored in closed unheated garage, confirm the viability of applying such a ventilating system in the agricultural enterprises. The use of a hot air generator in the ventilating system for decreasing the atmospheric humidity is justified by the observations. The atmospheric humidity has a significant impact on the fallout of condensation, thus at an atmospheric humidity of 60% a change in temperature within 8°C is sufficient for dewdrops to appear, while if the atmospheric humidity rises by 20% it happens with a change in temperature equal to 4°C. When ventilation is on, the atmospheric humidity decreases due to its compulsory dehumidification, thus the risk of moisture condensation decreases.