TY JOUR TI EXPERIMENTAL STUDY OF HEAT TECHNICAL PARAMETERS OF A SHELL AND TUBE HEAT EXCHANGER WITH A SPIRAL COIL KW heat exchanger KW coil KW turbulence KW heat transfer coefficient KW field experiment JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kuschev, L.A. AU Uvarov, V.A. AU Kryukov, I.V. AU Brezhnev, D.A. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov