Conference proceeding
Thermophysical Properties of Hydrogen and Deuterium at all Ortho-Para Compositions
12TH CRYOGENICS 2012 IIR INTERNATIONAL CONFERENCE, pp.267-272
2012
Handle:
https://hdl.handle.net/2376/100028
Abstract
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 orthopara 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.
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Details
- Title
- Thermophysical Properties of Hydrogen and Deuterium at all Ortho-Para Compositions
- Creators
- J LeachmanI RichardsonIcaris Ltd
- Publication Details
- 12TH CRYOGENICS 2012 IIR INTERNATIONAL CONFERENCE, pp.267-272
- Academic Unit
- Mechanical and Materials Engineering, School of
- Identifiers
- 99900564301601842
- Language
- English
- Resource Type
- Conference proceeding