Steady state flow channel blockage tests were conducted at the Idaho National Engineering and Environmental Laboratory (INEEL) as part of the safety basis upgrade program for the Acdvanced Test Reactor (ATR). The tests were sponsored by the U.S. Department of energy (DOE). This study was aimed at carrying out flow blockage tests, establishing a base case to compare test results with numericla results using a computational fluid dynamics code, caculating temperature profiles for blockage cases, and determining whether or not the ATR core would be exposed to core melting due to blockage of the inlet of a fuel cooling channel.
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