TY JOUR TI DECREASE OF MAN-CAUSED LOAD USING HEAT PUMP SYSTEMS KW anthropogenic impact KW environmental safety KW rational use of natural resources KW alternative energy KW renewable energy KW geothermal system KW Solar collector JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Goshovskiy, S.. AU Zur'yan, A.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov