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Liquid-hydrogen tank car

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A liquid hydrogen tank car, also called liquid hydrogen tank wagon or liquid hydrogen tanker wagon is a railroad tank car designed to carry cryogenic liquid hydrogen (LH2). LH2 tank cars with a capacity of 17,000 pounds (7,711 kg) are used for transcontinental transport.

Design

The pressure within the tank is 25 psi (170 kPa) or lower with a temperature below 20.27 K (−423.17 °F or −252.87 °C) and a boil-off rate of 0.3% to 0.6% per day The tank is double walled like a vacuum flask with multi-layer insulation, with the valves and fittings enclosed in a cabinet at the lower side or end of the car.

Classes

Cryogenic liquid tank cars in the USA are classified as follows:

See also

References

  1. "Toward a liquid hydrogen fuel economy-Pag.9" (PDF). deepblue.lib.umich.edu. Retrieved 2015-04-06.
  2. . deepblue.lib.umich.edu http://deepblue.lib.umich.edu/bitstream/2027.42/5800/4/bac5758.0001.001.txt. Retrieved 2015-04-06. {{cite web}}: Missing or empty |title= (help)
  3. Cryogenic rail tank cars Pag.3
  4. Spencer, A.B.; Colonna, G.R. (2003). NFPA Pocket Guide to Hazardous Materials. National Fire Protection Association. p. 59. ISBN 9780877655589. Retrieved 2015-04-06.
  5. "Costs of storing and transporting hydrogen Pag.50" (PDF). www1.eere.energy.gov. Retrieved 2015-04-06.
  6. "Field guide to rail cars". Archived from the original on 2008-12-20. Retrieved 2015-04-06.
  7. "eCFR — Code of Federal Regulations | DOT113". ecfr.gpoaccess.gov. Archived from the original on 2012-04-02. Retrieved 2015-04-06.
  8. "Railroad tank car specification marking system" (PDF). henrycoema.org. Retrieved 2015-04-06.

External links

Hydrogen infrastructure
Compressed hydrogen
Hydrogen economy
Hydrogen storage
Liquid hydrogen
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