Study of the Effective Torus Exhaust High Vacuum Pumping System Performance in the Inner Tritium Plant Loop of EU-DEMO

References

• C. DAY and T. GIEGERICH, “The Direct Internal Recycling Concept to Simplify the Fuel Cycle of a Fusion Power Plant,” Fusion Eng. Des., 88, 6–8, 616 (2013); https://doi.org/10.1016/j.fusengdes.2013.05.026.
   Web of Science ®Google Scholar
• T. GIEGERICH and C. DAY, “The KALPUREX-Process—A New Vacuum Pumping Process for Exhaust Gases in Fusion Power Plants,” Fusion Eng. Des., 89, 7–8, 1476 (2014); https://doi.org/10.1016/j.fusengdes.2014.03.082.
   Web of Science ®Google Scholar
• T. GIEGERICH et al., “Preliminary Configuration of the Torus Vacuum Pumping System Installed in the DEMO Lower Port,” Fusion Eng. Des., 146, B, 2180 (2019); https://doi.org/10.1016/j.fusengdes.2019.03.147.
   Google Scholar
• C. DAY et al., “The Pre-concept Design of the DEMO Tritium, Matter Injection and Vacuum Systems,” Fusion Eng. Des., 179, 113139 (2022); https://doi.org/10.1016/j.fusengdes.2022.113139.
   Web of Science ®Google Scholar
• T. L. HO, “Speed, Speed Factor and Power Input of Different Designs of Diffusion Pumps, and Remarks on Measurements of Speed,” Physics, 2, 386 (1932); https://doi.org/10.1063/1.1745064.
   Google Scholar
• D. H. DAVIS, “Monte Carlo Calculation of Molecular Flow Rates Through a Cylindrical Elbow and Pipes of Other Shapes,” J. Appl. Phys., 31, 7, 1169 (1960); https://doi.org/10.1063/1.1735797.
   Web of Science ®Google Scholar
• G. A. BIRD, Molecular Gas Dynamics and the Direct Simulation of Gas Flows, No. 42 in Oxford Engineering Science Series, Oxford University Press Inc. (1994).
   Google Scholar
• C. W. OATLEY, “The Flow of Gas Through Composite Systems at Very Low Pressures,” Br. J. Appl. Phys., 8, 1, 15 (1957); https://doi.org/10.1088/0508-3443/8/1/305.
   Web of Science ®Google Scholar
• L. FÜSTÖSS and G. TÓTH, “The Problem of the Compounding of Transmission Probabilities for Composite Systems,” J. Vac. Sci. Technol., 9, 4, 1214 (1972); https://doi.org/10.1116/1.1317015.
   Web of Science ®Google Scholar
• L. FÜSTÖSS and G. TÓTH, “The Resistance Concept and the Dynamical Characterization of Molecular Gas Flow,” Vacuum, 40, 1, 43 (1990); https://doi.org/10.1016/0042-207X(90)90115-F.
   Web of Science ®Google Scholar
• K. JOUSTEN, “Molekulare Strömung von Gasen,” Chap. 8 in Handbuch Vakuumtechnik, 12th ed., K. JOUSTEN, Ed., pp. 171–193, Springer (2018).
   Google Scholar
• V. HAUER and C. DAY, “Conductance Modelling of ITER Vacuum Systems,” Fusion Eng. Des., 84, 2, 903 (2009); https://doi.org/10.1016/j.fusengdes.2008.12.115.
   Web of Science ®Google Scholar
• D. A. KARPOV et al., “Vacuum Pumping System of TRT,” Plasma Phys. Rep., 47, 12, 1267 (2021); https://doi.org/10.1134/S1063780X21120023.
   Web of Science ®Google Scholar
• B. J. PETERS and C. DAY, “Analysis of Low Pressure Hydrogen Separation from Fusion Exhaust Gases by the Means of Superpermeability,” Fusion Eng. Des., 124, 696 (2017); https://doi.org/10.1016/j.fusengdes.2017.05.124.
   Web of Science ®Google Scholar
• B. J. PETERS, “Development of a Hydrogen-Selective Vacuum Pump on the Basis of Superpermeation,” PhD Thesis, Department of Mechanical Engineering, Karlsruhe Institute of Technology (2020).
   Google Scholar
• X. LUO and C. DAY, “3D Monte Carlo Vacuum Modeling of the Neutral Beam Injection System of ITER,” Fusion Eng. Des., 85, 7–9, 1446 (2010); https://doi.org/10.1016/j.fusengdes.2010.04.002.
   Web of Science ®Google Scholar
• X. LUO et al., “Assessment of the JT-60SA Divertor Cryopump Performance,” Fusion Eng. Des., 136, 467 (2018); https://doi.org/10.1016/j.fusengdes.2018.02.099.
   Web of Science ®Google Scholar
• R. KERSEVAN and J.-L. PONS, “Introduction to MOLFLOW+: New Graphical Processing Unit-Based Monte Carlo Code for Simulating Molecular Flows and for Calculating Angular Coefficients in the Compute Unified Device Architecture Environment,” J. Vac. Sci. Technol., A, 27, 4, 1017 (2009); https://doi.org/10.1116/1.3153280.
   Web of Science ®Google Scholar
• T. TEICHMANN and C. DAY, “Particle Simulation of Linear Diffusion Pumps for DEMO Torus Exhaust Pumping,” Fusion Eng. Des., 169, 112694 (2021); https://doi.org/10.1016/j.fusengdes.2021.112694.
   Web of Science ®Google Scholar
• T. TEICHMANN, T. GIEGERICH, and C. DAY, “Simulation of Mercury-Driven Diffusion Pumps for Torus Exhaust Pumping,” IEEE Trans. Plasma Sci., 50, 11, 4459 (2022); https://doi.org/10.1109/TPS.2022.3202083.
   Web of Science ®Google Scholar
• S. J. PLIMPTON et al., “Direct Simulation Monte Carlo on Petaflop Supercomputers and Beyond,” Phys. Fluids, 31, 8, 086101 (2019); https://doi.org/10.1063/1.5108534.
   Web of Science ®Google Scholar
• M. D’ONORIO and G. CARUSO, “Pressure Suppression System Influence on Vacuum Vessel Thermal-Hydraulics and on Source Term Mobilization During a Multiple First Wall–Blanket Pipe Break,” Fusion Eng. Des., 164, 112224 (2021); https://doi.org/10.1016/j.fusengdes.2020.112224.
   Web of Science ®Google Scholar