Conference paper Open Access

Neutron kinetics equations in APOLLO3® code for application to noise problems.

Gammicchia A., Santandrea S., Zmijarevic I., Stankovski Z., and Dulla S

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  <identifier identifierType="DOI">10.5281/zenodo.3567571</identifier>
      <creatorName>Gammicchia A., Santandrea S., Zmijarevic I., Stankovski Z., and Dulla S</creatorName>
    <title>Neutron kinetics equations in APOLLO3® code for application to noise problems.</title>
    <date dateType="Issued">2019-08-25</date>
  <resourceType resourceTypeGeneral="ConferencePaper"/>
    <alternateIdentifier alternateIdentifierType="url"></alternateIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.3567570</relatedIdentifier>
    <rights rightsURI="">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
    <description descriptionType="Abstract">&lt;p&gt;A 2-D noise model is implemented in the deterministic reactor code APOLLO3 R to simulate&lt;br&gt;
a periodic oscillation of a structural component. The Two/Three Dimensional Transport&lt;br&gt;
(TDT) solver, using the Method of Characteristics, is adopted for the calculation of&lt;br&gt;
the case studies, constituted by a moving detector and control-rod bundle. The period is&lt;br&gt;
constructed by properly linking the geometries corresponding to the temporal positions.&lt;br&gt;
The calculation is entirely performed in the real time domain, without resorting to the traditional&lt;br&gt;
frequency approach. A dynamic eigenvalue is defined that takes into account the&lt;br&gt;
system average reactivity over a period. The algorithm is accelerated by the DPN synthetic&lt;br&gt;
method. For each cell of the domain, the time values of fission rates are analysed&lt;br&gt;
to determine the noise extent.&lt;/p&gt;</description>
      <funderName>European Commission</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/100010661</funderIdentifier>
      <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/754316/">754316</awardNumber>
      <awardTitle>Core monitoring techniques and experimental validation and demonstration</awardTitle>
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