Different techniques for reducing DLOFC fuel temperatures in a PBMR-DPP-400 core

The result was a reduction in the maximum DLOFC temperatures from 1536 °C to 1298 °C for the multi-pass and from 2273 °C to 1448 °C for the OTTO. The use of neutron poison in the central reflector to flatten the peaks in the axial profiles of the maximum DLOFC temperatures reduced the maximum DLOFC temperature much more effectively than any of the other techniques.