INVESTIGATION OF THE EFFECT USING DIFFERENT COOLANT ON THE PERFORMANCE OF A TOKAMAK FUSION REACTOR BLANKET

Authors : Haci Mehmet ŞAHİN, Alper KARAKOÇ

Pages : 59-72

View : 16 | Download : 4

Publication Date : 2020-09-23

Article Type : Research Paper

Abstract :In this study, magnetic fusion reactor modeling with spherical geometry has been completed for the first wall load 5 MW/m2 insert ignore into journalissuearticles values(2.22 x 1014 n/s); and 500 MW fusion power. In the modeled fusion reactor, D-T fuel was used in the plasma region. Within the scope of five different models, 1DS-ODS steel in the first wall region and Flibe, Flina, Flinak Flinabe and Li materials were used in the cooling zone of the reactor. In the first stage of this study, tritium breeding ratio insert ignore into journalissuearticles values(TBR);, energy multiplication factor insert ignore into journalissuearticles values(M); and heat flux of the reactor were calculated for five different cooling materials. In the second stage of the study heat flux gas production and DPA values in the first wall region and nuclear heat generation in the magnet layer were calculated by using Monte Carlo methods with Monte Carlo neutron‐photon transport code and nuclear libraries named as ENDF/B‐VI and CLAW‐IV. According to investigated models, it was observed that the density of lithium isotopes in the coolant material and produced in the reactor TBR and M were directly proportional. In all models with high neutron density, the minimum TBR insert ignore into journalissuearticles values(≥1.05); required for the operation of the reactors was obtained. In this context, the models which contains lithium and Flibe as coolants, they showed the best neutronic performance according to all considerations.
Keywords : Magnetic Fusion Reactor, Energy Multiplication Factor, TBR, Gas Production, DPA