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ORNL-5388 - the Molten Salt Energy Technologies Web Site

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6-40<br />

installed capacity must be handled as fresh fuel each year within <strong>the</strong> energy centers. This<br />

can be compared to <strong>the</strong> classical case of plutonium recycle in which 56% of <strong>the</strong> installed<br />

capacity is located in <strong>the</strong> energy centers and 368 kg of fissile plutonium is handled as fresh<br />

fuel each year. Thus, using <strong>the</strong> plutonium to produce 233U results in a significant reduction<br />

in <strong>the</strong> amount of installed capacity that must be located in secure regions, and it also reduces<br />

<strong>the</strong> amount of fissile plutonium that must be handled as fresh fuel each year.<br />

- 67.8 ST U308<br />

REFABRICATION<br />

HEDL 7805490.56<br />

Fig. 6.2-28. Utilization and Movement of Fissile Material in an LWR Nuclear System<br />

"Transmuting" Plutonium to 233U (Case 5TL, High-Cost U308 Supply) (Year 2035).<br />

As for <strong>the</strong> preceding option, <strong>the</strong> high energy support ratio associated with this case<br />

requires <strong>the</strong> development of a nuclear industry capable of reprocessing significant amounts<br />

of fuel containing thorium and refabricating significant amounts of fuel containing 232U,<br />

although <strong>the</strong>se amounts are considerably smaller. As Fig. 6.2-28 indicates, <strong>the</strong> LWR loaded<br />

with approximately 3% enriched 235U comprises 62% of <strong>the</strong> installed capacity in year 2035, ~<br />

<strong>the</strong> LWR loaded with Pu in Th comprises 18%, and <strong>the</strong> LWR loaded with 12% 233U in 23*U comprises<br />

20%.<br />

Thus approximately 34% o f <strong>the</strong> reprocessing capacity must be capable of handling fuel<br />

containing thorium and 20% of <strong>the</strong> fabrication capacity must be capable of handling fuel con-<br />

tai ni ng 232U.<br />

In sumnary, a converter strategy based on <strong>the</strong> LWR which "transmutes" all plutonium<br />

to 233U could supply a maximum nuclear contribution of 640 GWe with <strong>the</strong> high-cost U308<br />

supply, of which about 120 GWe would be located in energy centers.<br />

tribution for this case is somewhat less than for <strong>the</strong> case in which <strong>the</strong> production of<br />

plutonium is minimized, it does not require <strong>the</strong> development of new reactor concepts and<br />

it will require handling smaller amounts of 233U.<br />

While <strong>the</strong> nuclear con-<br />

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