File:Heike Kamerlingh Onnes - 34 - Figure 4 Schematic representation of the helium liquefactor with the associated helium cryostat.png

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Heike_Kamerlingh_Onnes_-_34_-_Figure_4_Schematic_representation_of_the_helium_liquefactor_with_the_associated_helium_cryostat.png ‎(250 × 540 pixels, file size: 74 KB, MIME type: image/png)

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Description
Nederlands: Fig. 4. Schematische weergave van de heliumliquefactor met de eraan gekoppelde heliumcryostaat. De waterstof (H2) dient als voorkoeling. Het heliumgas (He) treedt in een gesloten kringloop de installatie bij A binnen om via de regeneratorspiralen bij het expansieventiel K (via een lange staaf van buiten te bedienen) uit te komen en Joule-Thomson-afkoeling te ondergaan. Bij iedere cyclus daalt het helium aldus in temperatuur, tot het vloeibaar wordt. Via een hevel komt het vloeibare helium in de aparte cryostaat waar instrumenten en te onderzoeken stoffen in passen. Natuurkundig Laboratorium, Steenschuur, Leiden.
English: FIG. 4. Schematic representation of the helium liquefactor with the associated helium cryostat. The hydrogen (H2) serves as pre-cooling. The helium gas (He) enters the plant at A closed loop in order to end up via the regenerator spirals at the expansion valve K (to be operated via a long rod from outside) and to undergo Joule-Thomson cooling. Thus, with each cycle, the helium drops in temperature until it becomes fluid. Through a siphon, the liquid helium enters the separate cryostat that accommodates instruments and test substances. Physics laboratory (Natuurkundig Laboratorium), Steenschuur, Leiden.
Depicted place Natuurkundig Laboratorium, Steenschuur, Leiden
Accession number
p 377
Notes
Nederlands: Bron van de illustratie volgens het boek: Communications from the Physical Laboratory of the University of Leiden by Prof. Dr. H. Kamerlingh Onnes
English: Source of the illustration according to the book: Communications from the Physical Laboratory of the University of Leiden by Prof. Dr. H. Kamerlingh Onnes
Source Dirk van Delft, Heike Kamerlingh Onnes. Een biografie. De man van het absolute nulpunt. Bert Bakker, Amsterdam 2005,
Nederlands: geraadpleegd via
English: Consulted at URL
https://www.dbnl.org/tekst/delf006heik01_01/delf006heik01_01_0042.php

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