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TT: Fachverband Tiefe Temperaturen
TT 18: Superconductivity: Poster
TT 18.71: Poster
Montag, 18. März 2024, 15:00–18:00, Poster C
Cooling power on different stages of a pulse tube cryocooler depending on regenerator design — •Xaver Herrmann1, Jack-André Schmidt1,2, Bernd Schmidt1,2, Jens Falter2, and André Schirmeisen1,2 — 1Instiute of Applied Physics, Justus-Liebig University, Giessen, Germany — 2TransMIT-Center for Adaptive Cryotechnology and Sensors, Giessen, Germany
Closed-cycle cryocoolers have become a reliable and important tool for low temperature scientific research[1]. Here we focus on Gifford-McMahon (GM) type pulse tube cryocoolers (PTC), which offer low maintenance and long measurement periods[2]. A critical part in cryocoolers is the regenerator. It strongly affects the temperature and cooling power achievable with a cryocooler[3, 4]. This poster will look at various regenerator fillings and associated losses, as well as the resulting cooling power achieved for a high input power system(11 kW). For comparison REGEN 3.3 simulation results will be shown.
[1] R. Güsten, et al., Nature 568 (2019) 357
[2] R. Radebaugh, J. Phys.: Condens. Matter 21 (2009) 164219
[3] J.M. Pfotenhauer, Cryocoolers 13 (2005) 463
[4] D. Abraham, IOP Conf. Ser.: Mater. Sci. Eng 1250 (2022) 012132
Keywords: Pulse Tube Cryocooler; Regenerator; Coolingpower