Recent content by rainier

There was not much of development in HTGR TRISO fuel since 1990. However, the US have tested some advanced fuel (UO2*) containing a ZrC layer on the kernel and in Japan ZrC coatings instead of SiC were examined. Release of Ag and Cs in long term normal operation is a major problem of standard...

A bypass flow was foreseen in the German AVR pebble bed reactor in order to cool the shutdown rods, which cannot withstand temperatures higher than 700°C and which were guided in separate, so called reflector noses. Unfortunately this essential bypass was forgotten by AVR operators in...