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Numerical simulation of magnetohydrodynamic (MHD) flow is implemented by using the commercial code package PHOENICS, in which the momentum source term of Lorentz force is added by applying FORTAN subroutine. Assuming simplified condition of a square duct, the numerical approach is applied to simulate the velocity profile in MA-zone in the design of dual-cooled waste transmutation blanket (DWTB) for a fusion-driven sub-critical system (FDS). The high velocity of closing FW side will improve the heat transfer between liquid metal and the walls of duct, due to high Hartmann number, but the MHD pressure drop will be increased. The compromise between the heat transfer and MHD pressure drop can be taken as reference for the design of the transmutation blanket. [Copyright &y& Elsevier]

Abstract: Preliminary design and analysis for China helium-cooled solid breeder (CH HC-SB) test blanket module (TBM) for testing in ITER device have been carried out recently. In this paper, the design description, the performance analysis and the related ancillary systems for CH TBM are given. The key features of the design are based upon the breeder-outside-tube (BOT) concept, on the use of solid breeder ceramic material, of helium as coolant and tritium purge gas, of ferrite–martensite steel as structural material and of beryllium as neutron multiplier. Results show that the proposed TBM concept has the advantages of higher tritium breeding ratio (TBR), simple structure design and engineering feasibility. [Copyright &y& Elsevier]