Entwicklung einer Anströmeinheit für einen Wirbelschichtofen zur Beschichtung von HTR-Brennstoffkernen

摘要

Operating today's fluidized bed reactors for HTR-fuel coating requires considerable time for maintenance. This is due to deposits of pyrocarbon which preferably build up around the inlet of the coating gas into the fluidized bed. With the gas injector described in this report these pyrocarbon deposits are reduced to aminimum. Using similarity rules the required fluid mechanic conditions for this iinjector system have been studied in model tests. The model testing results are verified by high temperature coating tests