The VO2 hydrogen liquefier designed to supply large liquid hydrogen chambers

✍ Scribed by A.G. Zel'dovich; Yu.K. Pilipenko

• Publisher: Elsevier Science
• Year: 1966
• Tongue: English
• Weight: 368 KB
• Volume: 6
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(66)90100-7

✦ Synopsis

A L AR G E-S C ALE laboratory liquefier which can work in a refrigerating cycle and produce liquid parahydrogen is essential in order to supply large liquid hydrogen chambers. Such a liquefier must have an output of ,,~200 1./h. A liquefier like this has been constructed along the lines previously proposed by the authors 1 and realized 2,3 with smaller-scale liquefiers.

A refrigeration cycle is used (Figure ) with Joule-Kelvin expansion of the hydrogen from highpressure and precooling with liquid nitrogen in two baths at atmospheric pressure and under vacuum. For the refrigerating cycle, and to obtain parahydrogen, the