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STACY Code and its Application to the HTR-Module and HTTR

STACY Code and its Application to the HTR-Module and HTTR

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I-131 Release Rate of a Tracer Pebble<br />

core pass 1 2 3 4 5 1 2 3 4 5<br />

1.8<br />

3.0E-12 30<br />

Relative iod dine-131 inve en<strong>to</strong>ry<br />

1.6<br />

1.4<br />

1.2<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

[mol/s]<br />

release rate<br />

Iodine 131<br />

2.5E-12<br />

2.0E-12<br />

1.5E-12<br />

1.0E-12<br />

5.0E-13<br />

0.0<br />

0 100 200 300<br />

0.0E+00<br />

0 100 200 300<br />

Irradiation time [EFPD]<br />

Irradiation time [EFPD]<br />

Inven<strong>to</strong>ry, Q = var., TNT<br />

Inven<strong>to</strong>ry, Q = const<br />

Rel. Rate = f(t), 15x inner, Q = var., TNT<br />

Rel. Rate = f(t), 15x inner, Q = const<br />

A. Xhonneux Technical Meeting on Re-evaluation of Maximum Operating Temperatures <strong>and</strong> Accident Conditions for<br />

14<br />

<strong>HTR</strong> Fuel <strong>and</strong> Structural Materials, Vienna,10-12 June 2013

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