TY JOUR TI TESTING LABORATORY UNIT FOR RESEARCH ON HEAT TRANSFER OF HORIZONTAL HEAT EXCHANGE TUBE KW heat transfer intensification KW heat exchange tube KW laboratory installation JO Modern Technologies and Scientific and Technological Progress 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»