Regensburg 2022 – wissenschaftliches Programm

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VA: Fachverband Vakuumphysik und Vakuumtechnik

VA 1: Rarefied gas dynamics and novel numerical approaches

VA 1.1: Vortrag

Montag, 5. September 2022, 09:30–10:10, H12

Direct Simulation Monte Carlo of diffusion pumps for the application in fusion reactors — •Tim Teichmann, Thomas Giegerich, and Christian Day — Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany

Active R&D is performed on developing of a continuously working pumping train for the future European demonstration fusion power plant (DEMO). Diffusion pumps operated with mercury have been identified as candidates for the high vacuum pumps. The numerical simulation of these pumps is challenging because they operate in a wide gas rarefaction range. A simulation framework based on the Direct Simulation Monte Carlo (DSMC) method has been established over the last years. The present talk aims to give an update on the present state of the simulations and their projected impact on the diffusion pump design for DEMO.