TY JOUR TI SOLAR AIR CONDITIONING SYSTEMS KW solar collector KW absorption refrigerating machine KW solar energy KW helio-profile JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Gar'kavyy, K.A. AU Begday, S.N. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov