Engineering Physics Annotation << Back Specifi city of Heat Transfer Surface Calculation in Steam Generators With Heavy Liquid Metal Coolants (HLMC) Bokova T.A., Meluzov A.G., Volkov N.S., Marov A.R., Zyryanova T.K. Currently, in the Russian Federation, installations with fast neutron reactors cooled by lead and leadbismuth coolants (HLMC) are being designed; studies of such reactor plants are also being carried out in other countries. One of the pressing thermophysical problems in the design of such installations is obtaining experimental and calculated data on the heat transfer of the lead coolant; clarifi cation of the criterion dependencies of heat transfer based on the operational content of impurities in the coolant, including technological processing of the circuit for the calculation analysis of heat transfer surfaces in steam generators of reactor plants with HLMC. This article discusses the development of methods and expressions for calculating steam generators with heavy liquid metal coolants (HLMC). The results of studies aimed at studying the infl uence of impurities in HLMC on heat transfer characteristics are presented. Conclusions are drawn about the characteristics of heat transfer during a transverse fl ow of lead around a heat exchange tube Keywords: heavy liquid metal coolant, steam generator, thermodynamic activity of oxygen, heat transfer DOI: 10.25791/infi zik.11.2023.1368 Pp. 63-69.