Physics Features of TRU-Fueled VHTRs

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Case summary</td><td align="center">Temperature reactivity coefficient <svg height="13.45" id="M14" style="vertical-align:-2.21957pt" version="1.1" viewbox="0 0 59.362499 13.45" width="59.362499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,13.45)">
<g transform="translate(72,-61.24)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
<tspan style="font-size: 12.50px; " x="4.1634989" y="0">Δ</tspan>
<tspan style="font-size: 12.50px; " x="13.190665" y="0">𝑘</tspan>
<tspan style="font-size: 12.50px; " x="19.967291" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="23.443125" y="0">𝑘</tspan>
<tspan style="font-size: 12.50px; " x="30.219751" y="0">/</tspan>
<tspan style="font-size: 12.50px; " x="33.695583" y="0">𝐾</tspan>
<tspan style="font-size: 12.50px; " x="43.22287" y="0">)</tspan>
</text>
</g>
</g>
</svg></td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">LEU, C/HM = 80, Enrichment = 15%</td><td align="center">−1.95E-05</td></tr><tr><td align="left">LEU, C/HM = 30, Enrichment = 15%</td><td align="center">−3.43E-05</td></tr><tr><td align="left">TRU, C/HM = 70</td><td align="center">−5.07E-05</td></tr><tr><td align="left">TRU, C/HM = 25</td><td align="center">−7.16E-05</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

BOL isothermal temperature reactivity coefficients of VHTRs with LEU and TRU.

Science and Technology of Nuclear Installations

tab5

Table 5

Table 5: Physics Features of TRU-Fueled VHTRs 