German Contribution to Item 2 of the Agenda “Status of ... - IAEA
German Contribution to Item 2 of the Agenda “Status of ... - IAEA
German Contribution to Item 2 of the Agenda “Status of ... - IAEA
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Lehrstuhl für Reak<strong>to</strong>rsicherheit und –technik<br />
Univ.-Pr<strong>of</strong>. Dr. rer. nat. Hans-Josef Allelein<br />
Institut für Energie- und Klimaforschung<br />
Nukleare Entsorgung und Reak<strong>to</strong>rsicherheit (IEK-6)<br />
Main Principles <strong>of</strong> STACY (1)<br />
• Calculation <strong>of</strong> CP failure fractions and FP release rates <strong>of</strong> a large<br />
number <strong>of</strong> individual tracer pebbles<br />
−<br />
−<br />
Spatially resolved fission product release rates<br />
Best estimate calculation <strong>of</strong> <strong>to</strong>tal release rate from core<br />
• Usage <strong>of</strong> stand-alone codes as an intermediate step:<br />
−<br />
VSOP: neutron flux and fluid temperature distributions<br />
under normal operation conditions<br />
− MGT: accident temperature distributions<br />
• Fuel shuffling is modeled so far after stream tube model in VSOP<br />
(later on SHUFLE will be used)<br />
H.-J. Allelein<br />
TWG-GCR-23<br />
March 5-7, 2013, Vienna<br />
25
Change language