A simulation on HCSB-DEMO （helium-cooled solid breeder, HCSB） edge plasma, by using 2D edge plasma transport code SOLPS5.0, is presented. There is 400 MW heat power crossing CIB （core interface boundary）. The heat...A simulation on HCSB-DEMO （helium-cooled solid breeder, HCSB） edge plasma, by using 2D edge plasma transport code SOLPS5.0, is presented. There is 400 MW heat power crossing CIB （core interface boundary）. The heat flux profiles and peak flux at the divertor targets with different boundary densities axe investigated. It is indicated that the HCSB-DEMO divertor should operate at a proper upstream density in order to avoid a high heat flux at the divertor targets. When the upstream density is 0.63x 102~ m-3, the peak heat flux at the divertor targets will be above 17 MW/m2. The cross-field transport, the power crossing CIB and the power fraction taken by electrons and ions and SOL （scrape-off-layer） thickness are analyzed as unknown parameters. It is shown that the peak flux at the divertor target is very sensitive to these parameters. The simulation results will be used in the divertor design for HCSB-DEMO.展开更多
Simulation of the core plasma parameters of HCSB-DEMO （helium-cooled solid breeder, HCSB）, by using a 1.5D plasma transport code, was carried out. The study includes investigations of operational scenarios, temperat...Simulation of the core plasma parameters of HCSB-DEMO （helium-cooled solid breeder, HCSB）, by using a 1.5D plasma transport code, was carried out. The study includes investigations of operational scenarios, temperature and density profiles of both ions and electrons, fusion and radiated power, distribution of the safety factor, sensitivity analyses for some input parameters as well as a primary estimate of the divertor heating load. The results indicate that the following fusion reactor parameters can be properly set for HCSB-DEMO, namely major radius of 7.2 m, aspect ratio of 3.4, elongation of 1.85, triangularity of 0.45, plasma current of 14.8 MA, normalized beta of 4.4, toroidal field （TF） of 6.86 T, average electron density of 1.5× 10^20 m^-3, average electron temperature of 14.5 keV, fusion power of 2.55 GW, neutron wall loading of 2.3 MW.m^-2 and fusion multiplication factor of 35.展开更多
A comparative study of SN （single null）, DDN （disconnected double-null） and DN （double null） diverters for HCSB-DEMO （helium-cooled solid breeder, HCSB） is reported in this paper by using the 2D edge plasma tr...A comparative study of SN （single null）, DDN （disconnected double-null） and DN （double null） diverters for HCSB-DEMO （helium-cooled solid breeder, HCSB） is reported in this paper by using the 2D edge plasma transport code SOLPS5.0. There is a heat power of 400 MW crossing CIB （core interface boundary）. The peak heat flux at targets with different upstream densities is investigated. It is indicated that the peak heat flux at the outer target with a SN diverter is lower than that at the outer-down target with a DDN diverter under the same upstream density, but is higher than that at the outer target with a DN diverter. The diverter should operate at a proper upstremn density to avoid strong high heat flux at the targets. The peak heat flux at the targets and first wail are sensitive to the SOL （scrape-off-layer） grid thickness. The simulated results wilt provide data for the design of diverter in HCSB-DEMO.展开更多
文摘A simulation on HCSB-DEMO （helium-cooled solid breeder, HCSB） edge plasma, by using 2D edge plasma transport code SOLPS5.0, is presented. There is 400 MW heat power crossing CIB （core interface boundary）. The heat flux profiles and peak flux at the divertor targets with different boundary densities axe investigated. It is indicated that the HCSB-DEMO divertor should operate at a proper upstream density in order to avoid a high heat flux at the divertor targets. When the upstream density is 0.63x 102~ m-3, the peak heat flux at the divertor targets will be above 17 MW/m2. The cross-field transport, the power crossing CIB and the power fraction taken by electrons and ions and SOL （scrape-off-layer） thickness are analyzed as unknown parameters. It is shown that the peak flux at the divertor target is very sensitive to these parameters. The simulation results will be used in the divertor design for HCSB-DEMO.
文摘Simulation of the core plasma parameters of HCSB-DEMO （helium-cooled solid breeder, HCSB）, by using a 1.5D plasma transport code, was carried out. The study includes investigations of operational scenarios, temperature and density profiles of both ions and electrons, fusion and radiated power, distribution of the safety factor, sensitivity analyses for some input parameters as well as a primary estimate of the divertor heating load. The results indicate that the following fusion reactor parameters can be properly set for HCSB-DEMO, namely major radius of 7.2 m, aspect ratio of 3.4, elongation of 1.85, triangularity of 0.45, plasma current of 14.8 MA, normalized beta of 4.4, toroidal field （TF） of 6.86 T, average electron density of 1.5× 10^20 m^-3, average electron temperature of 14.5 keV, fusion power of 2.55 GW, neutron wall loading of 2.3 MW.m^-2 and fusion multiplication factor of 35.
文摘A comparative study of SN （single null）, DDN （disconnected double-null） and DN （double null） diverters for HCSB-DEMO （helium-cooled solid breeder, HCSB） is reported in this paper by using the 2D edge plasma transport code SOLPS5.0. There is a heat power of 400 MW crossing CIB （core interface boundary）. The peak heat flux at targets with different upstream densities is investigated. It is indicated that the peak heat flux at the outer target with a SN diverter is lower than that at the outer-down target with a DDN diverter under the same upstream density, but is higher than that at the outer target with a DN diverter. The diverter should operate at a proper upstremn density to avoid strong high heat flux at the targets. The peak heat flux at the targets and first wail are sensitive to the SOL （scrape-off-layer） grid thickness. The simulated results wilt provide data for the design of diverter in HCSB-DEMO.
