Question

A reload batch of UO2 fuel for a 1000 MWe LWR contains 30 metric tons of 3.0 weight percent enriched uranium. The tails assay during the enrichment of the fuel was 0.25 weight percent U-235. (a) How many metric tons of uranium must be mined? (b) If the ore grade is 0.2 weight percent, how many cubic meters of material must be excavated to produce the batch uranium requirements? (Assume a density for the excavated ore of 2.7 g/cm3 .)

Answer 1

(a) Let, x metric tonnes of ore is required

Therefore, 36 metric tonnnes of uranium must be mined. ........... answer to part (a)

(b) Let, x metric tonnes of ore is required

Thus, 16.667 cubic meters of material must be excavated. ......... answer to part (b)

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