The expansion ratio of a liquefied and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of the same amount of substance in gaseous form, at room temperature and normal atmospheric pressure.
If a sufficient amount of liquid is vaporized within a closed container, it produces pressures that can rupture the pressure vessel. Hence the use of pressure relief valves and vent valves are important.
The expansion ratio of liquefied and cryogenic from the boiling point to ambient is:
- nitrogen – 1 to 696
- liquid helium – 1 to 745
- argon – 1 to 842
- liquid hydrogen – 1 to 850
- liquid oxygen – 1 to 860
- neon – Neon has the highest expansion ratio with 1 to 1445.
See also
External links
References
Rick Houghton (2007). Emergency Characterization of Unknown Materials. CRC Press. ISBN 978-0-8493-7968-0. 978-0-8493-7968-0 ↩
Safetygram-27 Cryogenic Liquid Containers Archived 2008-12-07 at the Wayback Machine http://www.airproducts.com/nr/rdonlyres/38000ecf-e07b-4288-8ff9-73699c70c882/0/safetygram27.pdf ↩
Handbook of Compressed Gases. Compressed Gas Association. Springer Science & Business Media. 2012-12-06. p. 76. ISBN 9781461306733. Retrieved 27 July 2022.{{cite book}}: CS1 maint: others (link) 9781461306733 ↩
"Characteristics". The Linde Group. Archived from the original on 2012-02-18. https://web.archive.org/web/20120218125124/http://www.lindecanada.com/en/aboutboc/safety/cryogenic_liquids/characteristics.php ↩