Journal ArticleDOI
A Small Scale Hydrogen Liquefier
TLDR
In this paper, a simple Hampson-type liquefier capable of producing about a liter of liquid hydrogen per hour is described, without the necessity of a compressor or gasometer.Abstract:
A simple Hampson‐type liquefier capable of producing about a liter of liquid hydrogen per hour is described. Compressed cylinder hydrogen is used avoiding the necessity of a compressor or gasometer. Design details of the heat interchangers and other vital parts are included as well as pertinent data on operation and performance.read more
Citations
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Book ChapterDOI
The Production of Low Temperatures Down to Hydrogen Temperature
TL;DR: In this paper, the fundamental physical principles involved in the many techniques for the production of low temperatures down to temperatures attainable with liquid hydrogen are given. But, it is not my purpose to detail the technological and mechanical developments attendant on each process of refrigeration, which can be found more suitably in engineering publications.
Journal ArticleDOI
Gain measurements in stimulated rotational Raman scattering in para hydrogen.
TL;DR: The dependence on CO(2)-laser pump energy of the output Stokes radiation obtained through stimulated rotational Raman scattering in para hydrogen is studied experimentally and effective plane-wave gain was determined as a function of the scattered wavelength by using a theoretical expression for the scattered pulse energy.
Journal ArticleDOI
A new vacuum jacket transfer tube for the connexion of several refrigerant storage vessels with an evaporation cryostat
Wolfgang Wagner,H. Janssen +1 more
Journal ArticleDOI
Small scale hydrogen liquefaction
B. Yates,F.E. Hoare +1 more
TL;DR: In this article, a description of the procedure adopted in designing a hydrogen liquefier to produce a required output is given, applied to a case where 5 liters of liquid hydrogen were required to be produced without the use of a compressor.
References
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Journal ArticleDOI
Ein kleiner Apparat zur Erzeugung sehr tiefer Temperaturen
TL;DR: In this paper, a Lindeprinzip beruhender Apparat beschrieben, der es gestattet, mit einem Bad von flussiger Luft Versuche bei den Temperaturen des flussigen Wasserstoffs, and with einem bad of flussigem wasserstoff Versuchee bei Heliumtemperaturen auszufuhren.
Journal ArticleDOI
The Design of Hydrogen Liquefiers
TL;DR: The general principles underlying the practical design of Joule-Thomson hydrogen liquefiers, utilizing the compressed hydrogen commercially available in cylinders, are discussed in this article, and a typical design for the regenerative interchanger of a small scale liquefier is given.
Journal ArticleDOI
A Simplified Hydrogen Liquefier
TL;DR: By using a twisted tube heat interchanger, it has been possible to build a small hydrogen liquefier of great simplicity and efficiency, which can be operated from commercial hydrogen cylinders without the use of a compressor as mentioned in this paper.
Journal ArticleDOI
A combined hydrogen and helium liquefier
TL;DR: In this article, a description is given of a helium liquefier which needs only liquid air for the initial cooling and is designed to enable low-temperature experiments to be made in the ordinary laboratory.