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CryoPHAEQTS : Cryogenic Phase Equilibria Test Stand

Tamson, Jens; Kochenburger, Thomas; Stamm, Michael; Grohmann, Steffen ORCID iD icon


Cryocoolers and cryoplants can provide efficient cooling for high-temperature superconductor (HTS) applications in the range of small and large cooling capacities, respectively. At some kW cooling power and temperatures below 77 K, which is typical for HTS power applications, both technologies have their limitations, however. The technology gap may be closed with cryogenic mixed refrigerant cycles (CMRCs). Such development requires fluid property data of cryogenic fluid mixtures, which are unavailable today. Therefore, the Cryogenic Phase Equilibria Test Stand is being built at KIT. CryoPHAEQTS will provide physical property data of binary, ternary or quaternary mixtures of cryogenic fluids. The test stand is operated between 15–300 K and at pressures up to 15 MPa. Operation with hydrogen and deuterium is considered through compliance with relevant explosion protection regulations. The cooling is provided by a pulse-tube cryocooler and the cell temperature is adjusted by electrical compensation heating. Vapour-liquid (VLE) and vapour-liquid-liquid equilibrium (VLLE) measurements are conducted by dynamic gas-phase circulation; solid-liquid equilibrium (SLE) measurements by a calorimetric method. ... mehr

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DOI: 10.5445/IR/1000075585
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Publikationstyp Poster
Publikationsjahr 2017
Sprache Englisch
Identifikator urn:nbn:de:swb:90-755852
KITopen-ID: 1000075585
HGF-Programm 37.06.02 (POF III, LK 01) New Power Network Technology
Veranstaltung 2nd International Workshop on Cooling Systems for HTS Applications (IWC-HTS), Karlsruhe, Germany, 13th - 15th September 2017
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