CHOICE OF THE ABSORBING SURFACE CONSTRUCTION OF THE SOLAR COLLECTOR, WHICH IS USED IN THE LIVESTOCK COMPLEX

Abstract

The possibility of using enclosing structures as an absorbing surface of a solar collector is investigated. The roof of the cowshed of the «Bolshemurashkinsky» breeding plant was selected for analysis. Engineering calculations of technical indicators and simulation of solar radiation on the absorbing surface of the solar collector were carried out to determine the area of shading from the waves of the profiled sheet. The working width of the profiled sheet, wave height, width of the top and base of the wave, and the number of waves in one profiled sheet were considered as technical indicators. These indicators are necessary to determine the area of one wave, the area of all waves contained in the working width of the profiled sheet, the volume of water contained in one wave and in the working area. The obtained results on the shading area were necessary to determine the consumed solar radiation and heat losses. Based on the results of solar radiation simulation and calculations, the grade of profiled sheet was selected, which has the largest working area, thereby reducing the area of the solar collector required for heating water in the cowshed. The data obtained on the amount of incoming solar energy and the amount of heat losses allowed us to determine the efficiency of the solar collector. The conducted analysis showed that the most rational option is the option using HC-44-1000. By calculations performed and simulating the incidence of sunlight on the absorbing surface, it was found that this brand has the largest working area (0.0275 m2) and a volume of water that fits into the working width of the profiled flooring with a length of one meter (27.5 m3).