TY JOUR TI RELEVANCE OF CONTAMINATION MODELS FOR DIAGNOSTICS OF PLATE HEAT EXCHANGERS KW heat consumption KW energy intensity KW energy efficiency KW plate heat exchangers KW pollution model KW heat exchange intensity KW additional resistance layers KW heating surface KW scale formation KW heat exchange channels KW flow distribution KW crystallization mechanism of pollution KW scale formation factors. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Elistratova, Y.V. AU Seminenko, A.S. AU Minko, V.A. PY 2020 IS 5 PB Belgorod State Technological University named after V.G. Shukhov