%0 Journal Article %T SOLAR COLLECTOR IN THE SYSTEMS OF ENERGY SAVING %A Polyakov, V.A. %A Begday, S.N. %K %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2017 %N 2 %P 3 %I Belgorod State Technological University named after V.G. Shukhov