M.A. Yarmolenko - Ph.D. (Eng.), Associate Professor, Leading Research Scientist, Francisk Skorina Gomel State University Е-mail: simmak79@mail.ru A.A. Rogachev - Dr.Sc. (Eng.), Associate Professor, Leading Research Scientist, A.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus (Minsk) E-mail: rogachev78@mail.ru A.V. Rogachev - Corresponding Member of NANB, Dr.Sc. (Chem.), Professor, Francisk Skorina Gomel State University; Director of Scientific Research Institute of Physical and Chemical