This report c o v e rs the thermal a n a ly s is performed on th e SM -1 Core III for both stead y s t a t e and tran sien t c o n d itio n s . S M -i C ore III w ill be used as a te s t for Type 3 e le m e n ts in a PM-2A C o r e . The steady s ta te a n a ly s is indicated minimum DNBR's for both design and sc ra m conditions are a b o v e the minimum criteria of 1.5. L o cal nucleate boiling w a s noted In the hot in te rn a l channels and lattice p a s s a g e a t scram power c o n d itio n

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... s . Loss of flow tra n s ie n t resu lts indicate DNBR's a b o v e 1 . 5 , insuring th a t th e core is safe from b u rn o u t. Bulk boiling was noted in the hot channels an d la ttic e p a ssa g e at sc ra m power con d itio n . THERMAL ANALYSIS Or 3M-1 CORI ill 1.0