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Management of Commercially Generated Radioactive Waste - U.S. ...

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K.20<br />

The calculated repository capacities at these loadings are shown in Table K.1.9<br />

assuming 2000-acre repositories. These results are plotted and discussed in Section 5.3.<br />

Maximum temperatures calculated for these loadings in both the near-field and far-field are<br />

shown in Tables K.1.10 through K.1.12. The thermal criteria are met in all cases except for<br />

spent fuel in basalt where spent fuel center pin temperature exceeds the 300 0 C criteria at<br />

both 5- and 10-year loadings, indicating that basalt capacities may be overstated. The<br />

variation in the maximum temperature in all media indicates that further optimization <strong>of</strong> the<br />

loading criteria is desirable.<br />

TABLE K.1.9. Repository Capacities as a Function <strong>of</strong> <strong>Waste</strong> Age, MTHM<br />

<strong>Waste</strong> Type 5-Year 10-Year 50-Year<br />

and Median Age Age Age<br />

Spent Fuel<br />

Salt 57,600 61,100 64,700<br />

Granite 141,000 150,000 193,000<br />

Shale 70,700 76,300 90,600<br />

Basalt 141,000 150,000 193,000<br />

Reprocessing HLW<br />

Salt 66,300 83,200 124,000<br />

Granite 66,200 89,700 137,000<br />

Shale 36,900 46,300 68,000<br />

Basalt 63,000 83,300 122,000<br />

TABLE K.1.10. Maximum Near-Field Temperatures with Spent Fuel<br />

Age <strong>of</strong> Maximum temperature, oC and Year<br />

Formation <strong>Waste</strong> Formation Canister <strong>Waste</strong> Centerline<br />

Salt 5 92 @ 30 yr 127 @

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