TY JOUR TI TRENDS IN THE DEVELOPMENT OF SOLAR POWER ENGINEERING: "DRY" ABSORPTION THERMOTRANSFORMERS FOR ENVIRONMENTAL ENGINEERING SYSTEMS KW solar energy thermotransformers KW "dry" absorption KW experimental plant KW thermal water treatment JO Vestnik of Astrakhan State Technical University AU Kulbarakova, M.. AU Piskunov, N.. AU Shipulina, Y.. AU Rudenko, M.. PY 2017 IS 2017 PB Astrakhan State Technical University