6-39
The f r a c t i o n o f t h e i n s t a l l e d nuclear capacity which f o r t h i s case must be l o c a t e d The maximum i s approximately
i n energy centers i s shown i n Fig. 6.2-26 as a f u n c t i o n o f time.
--
I;
L L
120 GWe, which i s s l i g h t l y greater than t h a t f o r t h e previous case. The amount o f nuclear capacity a v a i l a b l e f o r l o c a t i o n outside energy centers ranges from approximately 300 GWe i n t h e year 2000 t o approximately 500 GWe i n t h e year 2025. The maximum annual U308 and enrichment requirements are 65,000 ST/yr and 45 m i l l i o n SWU/yr, respectively. These are q u i t e s i m i l a r t o t h e maximum annual requirements f o r t h e case of t h e LWR w i t h c l a s s i c a l plutonium r e c y c l e (see Fig. 6.2-13).
The disadvantage o f t h i s o p t i o n i s t h a t t h e energy support r a t i o decreases continuously as t h e end o f t h e U308 supply i s approached. Figure 6.2-27 i n d i c a t e s t h a t i f a U308 supply o f 6.0 m i l l i o n ST below $160/lb were a v a i l a b l e , t h e system would continue t o grow
Ii17
I
I
L
mE
LWR WITH PU~ONIUH
I I
U S E 5lL
,em5TL
W L M W ANNULL LE(XIRFJ#â‚ŹNT:
t
IL
L E
I
TDAMMIIIATION
-
1
- THf
1
LWR WTH PLUTONIUM TDAMMUTATION /
- THROIIAWAY LWR ON THE CYCE
YEAR
YEAR
Fig. 6.2-25. The E f f e c t on the Nuclear C o n t r i b u t i o n o f "Transmuting" P1u t o n i um Produced i n LWRs t o 233U (High-Cost U308 Supply)
-
IOX
I
I
I
LWR WllH PLUTONIUM IRAMMUTATION
I
I
I
Fig. 6.2-26. R e l a t i v e Nuclear C o n t r i butions o f LWRs Located I n s i d e (Pu/Th) and Outside (Denatured LWRs) Ener y Centers (Plutonium "Transmuted" t o 2 3 U) (High-Cost U308 SUPPlY) *
4
u n t i l approximately year 2050, and thus t h e h i g h energy support r a t i o associated w i t h t h i s o p t i o n could be maintained much longer. The maximum annual U308 and enrichment requirements i n t h i s case are 109,000 ST/yr and 77 m i l l i o n SWU/yr, r e s p e c t i v e l y . Thus, again we have an o p t i o n f o r which t h e p r i n c i p a l l i m i t a t i o n would be t h e annual ore and enrichment requirements.
ie~o
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na
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m1o
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mo
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Fig. 6.2-27. The E f f e c t o f U308 Supply on t h e Nuclear C o n t r i b u t i o n o f LWRs 5n System with Plutonium "Transmutation" (Case 5TL). comprises 18%o f t h e i n s t a l l e d capacity.
The u t i l i z a t i o n and movement o f f i s s i l e m a t e r i a l per GWe of i n s t a l l e d capacity f o r Case 5TL i n t h e year 2035 are shown i n Fig. 6.2-28. The annual U3O8 consumption i s approximately 68 ST U,08/GWe,
and the LWR u t i l i z i n g plutonium
Approximately 260 kg o f f i s s i l e plutonium per GWe o f