Share

IIR document

Thermophysical properties of hydrogen and deuterium at all ortho-para compositions.

Number: pap. n. 067

Author(s) : LEACHMAN J., RICHARDSON I.

Summary

Hydrogen, deuterium, and tritium have two separable nuclear-spin isomers, denoted by ortho and para, with potentially significant differences in thermophysical properties. These differences are most apparent for storage applications at cryogenic temperatures where the equilibrium mixture concentration changes substantially with temperature. Property differences approaching 30% can be observed between the ortho-para forms. Recent advances in the equations of state for hydrogen and deuterium have created an opportunity to couple statistical models of ideal-gas properties with real fluid models of non-ideal property behaviour. The resulting formulations are capable of high-accuracy property estimations at all ortho-para compositions. Methodologies for implementing the models are discussed and comparisons of the property calculations are presented.

Available documents

Format PDF

Pages: 267-272

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Thermophysical properties of hydrogen and deuterium at all ortho-para compositions.
  • Record ID : 30006688
  • Languages: English
  • Source: Cryogenics 2012. Proceedings of the 12th IIR International Conference: Dresden, Germany, September 11-14, 2012.
  • Publication date: 2012/09/11

Links


See other articles from the proceedings (78)
See the conference proceedings

Indexing