ORNL-5388 - the Molten Salt Energy Technologies Web Site

THE LWR WITH PURONIUM MlNUllUTlON
AND UIILIUTION
6-36
energy center ranges from approximately 300 GWe in the year 2000 to approximately 600 GWe
in the year 2025.
The disadvantage of this option is that the high energy support ratio
(the amount of capacity that can be located outside the energy center divided by the amount
that must be located in the center) cannot be maintained indefinitely. In fact, the energy
support ratio decreases continuously as the end of the U308 supply is approached.
.m -
a t MINIMIUTION
t
zm -
6
,a - LWR WITH *unoNIvM
MINIMIUTION AN0 AN0,UIILIUlION~
UIlLlUllON
0
1980
I
I990
I
iua
I
2010
I
2010
I
Iox) 1010 mo
YEAR
Fig. 6.2-20. The Effect of Minimizing
the Production and Use of Plutonium in LWRs
(High-Cost U308 Supply).
CASE SJL - THE LWR WITH PLUTONIUM
M4XIMUM ANNUL REOUlRtMtNl
*IC" COST ",Os SUPPL"
10 106SlOtLOI"SlWLB
Fig. 6.2-22. The Effect of U308
Supply on the Nuclear Contribution of LWRs
Operating with Plutonium Minimization and
Uti 1 ization.
-
ImO I I I I I I
CASE NL -THE LWR WITH WJlONIUM MINIMI7ATION
AN0 LlllLlUllON
emrmt
1
0
1980
I
I990 am 1010 2010 = 1010 2t60
YEA#
THE LWR FOLLWEO M AN ADVANCED CONVfRlER WITH
?LUlONIUM MINIMIUltON AND UIlllZAllON
I I I I
OI9, 1990 iua 1010 1020 1030 1010 s o
YEAR
Fig. 6.2-23. The Effect on the Nuclear
Contribution of Adding Advanced Converters
Operating with Plutonium Minimization and
Utilization (High-Cost U308 Supply).
The high energy support ratio could be maintained for a longer period of time, however,
if the U3O8 supply were larger. Figure 6.2-22 shows that doubling the U308 supply would
increase the maximum nuclear contribution of the system from approximately 700 GWe in year
2039 to over 1000 GWe in year 2050. Since the maximum energy support ratio occurs at about
the same-time as the maximum nuclear contribution, it can be assumed that with the increased
U& supply a large energy support ratio could be maintained as far into the future as year
2050. Given the U308 supply, it would appear that the principal limitation for this option
would be the maximum annual U308 and enrichment requirements, which are 115,000 ST/yr and
90 million SWU/yr, respectively.
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