Conceptual aspects of melting unit vessel cooling by heavy liquid metal coolant

Based on the results of the calculated temperature distribution estimates, it can be concluded that lead-bismuth cooling of the melting unit steel vessel in normal operation (i.e. in the presence of refractory coating and slag lining on the vessel inner surface) provides an opportunity to maintain steel surface temperatures which do not exceed the limits at an acceptable flow rate. Data presented in this article have been obtained for the first time and may be useful in designing melting units for radwaste reprocessing.