Enhancing roof construction to improve efficiency of drying

Abstract

Due to different conditions, this kind of collectors has not been implemented often. Firstly, it is an intervention in the roof construction, which requires changes to the projects, additional materials and expenses. Secondly, most importantly, the manifold absorbent material was not durable (damaged by sunlight, weather, birds, etc.) and over time became dirty and lost its transparency. Some of the disadvantages discussed above can be prevented by constructing a substructure that would capture the heated air under the roof of the hangar and direct it to the drying object. The design would be protected from precipitation, direct sunlight and birds.In this way, the heated air can be usedto cool the grain or diverted to the furnace as a preheated air.The simple construction on the roof of the hangar shows that using such a design it is possible to increase the temperature of the usable air to 5 ºC. The article offers a technological and technical solution for the use of warm air of the hangar for active ventilation of grain in the drying bin, which will significantly increase the efficiency of drying grain.