Preface

School-Seminar of Young Scientists and Specialists (SSYSS) under the leadership of the academician of RAS A.I. Leontiev “Problems of Heat and Mass Transfer and Gas Dynamics in Power Plants” is organized by National Committee for Heat and Mass Transfer, Russian Academy of Sciences. It has been held every two years since 1977. The School-Seminar brings together young researchers and leading scientists working in the field of heat and mass transfer, and provides an opportunity for open discussion and assessment of the results obtained. In 2021, the Institute of Thermal Physics of the Ural Branch of RAS was the co-organizer of the School-Seminar, therefore XXIII SSYSS was held for the first time in the Urals near Ekaterinburg on May 24 th - 28 th 2021. More than 150 reports were included in the scientific program, including about 30 lectures of leading Russian thermophysicists. Due to the current situation of COVID-19 epidemic, some lectures took place online. List of Committee are available in this pdf.