I
f
147
The estimated loss i n conversion r a t i o t o corrosion products was 0.006 u n i t s ; a l o s s of 0.008 u n i t s was allowed i n t h e calculations (Sec. 6.3). Since t h e concentration of corrosion products (Fe, N i , and C r ) i n t h e melt appears t o reach an equilibrium i n times t h a t are s h o r t compared t o t h e processing cycle time, it seems unlikely t h a t t h e processing w i l l have much influence on t h e concentrations of corrosion products, and t h e associated
loss of neutrons seems unavoidable, 6.5.3
Inventories and Processing Rates
It may be i n f e r r e d from Table 6.8, Column 1, t h a t t h e s p e c i f i c power of t h e MSCR is 0,35 Mwe/kg f i s s i l e , which i s comparable with many of t h e advanced systems currently being put forward,
The exposure (about 40,000
Mwdt/tonne of thorium) is of the same order as t h a t of "competitive" reactors, ,
Table 6.8. Inventories of Nuclear Materials -1000 Molten S a l t Converter Reference Design Reactor
Mwe
Inventories, kg
Material
232Th 3 ~ a
-
2 3 3 ~ 234"
-
23 2 3 6 ~ 237 NP 2 3 8 ~
5
Salt Fission products Corrosion products ~~
~~~
Reactor Plant
Processing
Total
80,000 95.5 2110 484 420 682 49 109 109,000 4,400 82
6500 7.8 172 39.6 45* 56 5 11 8,900 360 7
86,500 1 03 2,282 524 465 738 54 120 117,900 4,760 89
~
*Including 10.6 kg i n reserve t o keep r e a c t o r i n operation f o r 30 days after unscheduled i n t e r r u p t i o n of recycle from processing plant.