%0 Journal Article %T ISSUES OF HEAT EXCHANGE APPARATUS OPTIMIZATION %A Scherbin, S.A. %A Demin, G.G. %K relative costs, heat exchanger, heat transfer, hydraulic resistance, coolant speed %J Bulletin of the Angarsk State Technical University %D 2019 %N 1 %P 3 %I Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»