the uffects of transverse flow through graphite on fission product movement in htgr-type systems (dereinflluss von querstroemungen durch dem graphit auf die spaltprodukt-wanderungen in htgr-systemen)
(Englisch)
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high temperature gas-cooled reactors employ fuel elements which are separated from the coolant stream by graphite. pressure differentials along the coolant channel length of the fuel assembly can cause transverse flowof the gas through the graphite sleeve. such transverse flow could transfer fission products from broken fuel particles into the main coolant stream. mathematical analysis shows that the thickness of the annular gap between the fuel element and the graphite sleeve is an important factor that controls fission product transport.
the uffects of transverse flow through graphite on fission product movement in htgr-type systems (dereinflluss von querstroemungen durch dem graphit auf die spaltprodukt-wanderungen in htgr-systemen)