Neutronic design optimisation of modular HCPB blankets for fusion power reactors

Fluid dynamic and thermal analyses of a HCPB TBM Breeder Unit mock-up

“…The heat generation profile in the EUROFER steel due to neutron load is taken from the results of [3]. They are implemented in ANSYS with tables by means of User Defined Commands (UDCs).…”

A new modular design concept for China's HCSB TBM in ITER

“…The benchmark parameter for tritium self-sufficiency in DEMO is a TBR of 1.15 [4], accounting for all of the following (1) refueling D-T burning plasma; (2) uncertainties of codes and nuclear data;…”

Neutronics design and supporting experimental activities in the EU

“…In the HCPB blanket, a supporting plate holds two breeding canisters filled with breeder ceramics pebbles (Li 4 SiO 4 or Li 2 TiO 3 , with variable 6 Li enrichment), while the space left by the canisters is filled with beryllium pebbles. Neutronics analyses based on extensive 3D Monte Carlo calculations [9] have been performed to asses and optimise the breeder ceramic/beryllium pebble bed configuration, in terms of the tritium breeding efficiency, the shielding capability and the beryllium inventory while satisfying, at the same time, all design requirements. As an example, Fig.…”

“…New original evaluations have been recently included in the latest version of the EFF general-purpose nuclear data library for neutron transport calculations, EFF-3, i.e. 7 Li, 9 Be, 27 Al, 28 Si, nat V, 52 Cr, 56 Fe, 58 Ni, 60 Ni and, more recently, the stable Ti isotopes. A complete EFF general purpose data evaluation is currently underway for the W isotopes and 181 Ta up to 150 MeV.…”

“…Sensitivity (%/%) Uncertainty C (%) 9 Be Elastic 0.73 (n,2n) 0.65 (n,t) −1.7 × 10 −2 (n,␣) positions where the TPR is measured, using the SUS3D code package. The resulting values, relative to the deepest position, are given in Table 1, showing that 6 Li(n,t) reaction rate is most sensitive to 9 Be elastic and (n,2n) cross-section, and to Li-6 (n,␣t) cross-section.…”