TY JOUR TI RESEARCH OF THE OPERATION OF LOW-POWER SOLID-FUEL HEAT GENERATORS UNDER THE CLIMATIC CONDITIONS OF THE NORTH KW solid fuel boilers KW solid fuel combustion KW excess air ratio JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Slobodchikov, E.G. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov