STACY Code and its Application to the HTR-Module and HTTR
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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Main Principles of <strong>STACY</strong><br />
• Calculation of CP failure fractions <strong>and</strong> FP release rates for a large number<br />
of individual tracer pebbles<br />
‣ Spatially resolved fission product release rates<br />
‣ More precise (less conservative) calculation of <strong>to</strong>tal release rate<br />
• Usage of st<strong>and</strong>-alone codes as an intermediate step:<br />
• VSOP: neutron flux <strong>and</strong> fluid temperature distributions under NOC<br />
• MGT: accident temperature distributions<br />
• Fuel shuffling is modelled so far after stream tube model in VSOP<br />
A. Xhonneux Technical Meeting on Re-evaluation of Maximum Operating Temperatures <strong>and</strong> Accident Conditions for<br />
7<br />
<strong>HTR</strong> Fuel <strong>and</strong> Structural Materials, Vienna,10-12 June 2013
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