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ORNL-5388 - the Molten Salt Energy Technologies Web Site

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6-4<br />

persed areas ensured - a fact which is particularly important if nuclear states are planning<br />

to provide nuclear fuel assurances to nonnuclear states.<br />

ClVEN<br />

SRCIFIED Ups SUPPLY<br />

SPECIFIED REAClOR<br />

DMLOPMENT OPTIONS<br />

NUCLEAR GROWM POKNTIAL E j<br />

aaa<br />

The philosophy used in this study is<br />

illustrated in Fig. 6.0-1. Given a specified<br />

U308 supply and a specified set of reactor<br />

development options, <strong>the</strong> potential role of<br />

nuclear power, <strong>the</strong> resources required to<br />

achieve this role, and <strong>the</strong> composition and<br />

aEk<br />

movement of fissile material were calculated.<br />

22 The deployment of <strong>the</strong> indiv'idual reactors and<br />

TIME<br />

<strong>the</strong>ir associated fuel cycle facilities were<br />

in all cases consistent with <strong>the</strong> nuclear<br />

RESOURCE REQUIRWNTS AND pol icy option under consideration. The intro-<br />

FISSILE M ERIAL LOCATION -&fbT3!4<br />

I<br />

MDL 7ID2-W I<br />

Fig. 6.0-1. The Philosophy of <strong>the</strong><br />

Nuclear Systems Assessment Study.<br />

duction date for each individual reactor con-<br />

cept and fuel cycle facility was assumed to be<br />

<strong>the</strong> earliest technologically feasible date.<br />

This allows an evaluation of <strong>the</strong> maximum im-<br />

pact of <strong>the</strong> system on any particular nuclear<br />

option.<br />

The effect of delaying <strong>the</strong> deployment<br />

of a reactor/cycle because it produces undesirable consequences was determined simply by<br />

eliminating it from <strong>the</strong> option.<br />

It was assumed that a nuclear power system was adequate if its installed nuclear capacity<br />

was 350 GWe in <strong>the</strong> year 2000 and a net increase of 15 GWe/yr was realized each year <strong>the</strong>reafter,<br />

with <strong>the</strong> increase sustained by <strong>the</strong> U308 supply.<br />

used in <strong>the</strong> study. A few runs were made assuming economic competition between nuclear<br />

fuel and coal, <strong>the</strong> plants being selected to minimize <strong>the</strong> levelized cost of power over<br />

time. These runs, described in Appendix D, indicated that for <strong>the</strong> assumptions used in<br />

this analysis nuclear power did not compete well at U3O8 prices above $160/lb; <strong>the</strong>refore,<br />

in <strong>the</strong> remaining runs an attempt was made to satisfy <strong>the</strong> demand for nuclear power with<br />

U308 available for less than $160/lb U308.<br />

chapter.<br />

Two different optimizing patterns were<br />

It is <strong>the</strong>se runs that are described in this<br />

The specific assumptions regarding <strong>the</strong> U3O8 supply are presented in Section 6.1 below,<br />

which also includes descriptions of <strong>the</strong> operating characteristics of <strong>the</strong> individual reactors<br />

utilized, <strong>the</strong> various nuclear policy options chosen for analyses, and <strong>the</strong> analytical method<br />

applied. Section 6.2 <strong>the</strong>n compares <strong>the</strong> results obtained for a selected set of nuclear policy<br />

options, and Section 6.3 summarizes <strong>the</strong> conclusions reached on <strong>the</strong> basis of those comparisons.<br />

The economic data base used for <strong>the</strong>se studies is given in Appendix By and detailed results<br />

for all <strong>the</strong> nuclear policy options are presented in Appendix C.

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