Regensburg 2022 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 31: Superconducting Electronics and Cryogenics: Poster Session
TT 31.14: Poster
Donnerstag, 8. September 2022, 15:00–18:00, P1
Characterization and optimization of different regenerator matrices on a single-stage pulse tube cryocooler — •Dominik Soare1,2, Jack-André Schmidt1,2, Bernd Schmidt1,2, Jens Falter2, and André Schirmeisen1,2 — 1Justus-Liebig University Giessen — 2TransMIT GmbH
Closed-cycle cryocoolers have become an important cooling concept tool for scientific research at low temperatures [1]. We here focus on Gifford-McMahon (GM) type pulse tube cryocoolers (PTC), which offer long measurement periods and low maintenance. The regenerator of any regenerative cryocooler is essential for the cooling process [2]. The regenerator offers heat capacity as a storage for the gas temperature during the cooling cycle. It pre-cools or -heats the working gas and therefore the regenerator matrix is an important optimization factor.
The poster will display the influence of different regenerator matrices on the cooling performance of a single stage pulse tube cryocooler driven by a helium compressor with 2kW input power. Using the results, it is possible to get new insights of the optimization of the first stage of two-stage cryocoolers and therefore their overall cooling performance.
[1] R. Güsten et al., Nature 568 (2019) 357
[2] P. P. Steijaert, Thermodynamical aspects of pulse-tube refrigerators (1999) 10