TY JOUR TI MATHEMATICAL MODELING OF HEAT TRANSFER IN A HORIZONTAL HEAT EXCHANGE PIPE KW heat transfer intensification KW heat exchange pipe KW laboratory setup KW mathematical model of ideal displacement JO Scientific Papers Collection of the Angarsk State Technical University AU Bal'chugov, A.V. AU Vazhenin, M.N. AU Kustov, B.O. PY 2020 IS 2020 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»