Modelling of Liquid Hydrogen Boil-Off

Saif Z. S. Al Ghafri, Adam Swanger, Vincent Jusko, Arman Siahvashi, Fernando Perez, Michael L. Johns and Eric F. May
Additional contact information
Saif Z. S. Al Ghafri: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
Adam Swanger: NASA Kennedy Space Centre, Cryogenics Test Laboratory, UB-G, KSC, Merritt Island, FL 32899, USA
Vincent Jusko: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
Arman Siahvashi: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
Fernando Perez: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
Michael L. Johns: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
Eric F. May: Fluid Sciences and Resources Division, Department of Chemical Engineering, Faculty of Engineering and Mathematical Sciences, The University of Western Australia, Crawley, WA 6009, Australia

Energies, 2022, vol. 15, issue 3, 1-16

Abstract: A model has been developed and implemented in the software package BoilFAST that allows for reliable calculations of the self-pressurization and boil-off losses for liquid hydrogen in different tank geometries and thermal insulation systems. The model accounts for the heat transfer from the vapor to the liquid phase, incorporates realistic heat transfer mechanisms, and uses reference equations of state to calculate thermodynamic properties. The model is validated by testing against a variety of scenarios using multiple sets of industrially relevant data for liquid hydrogen (LH2), including self-pressurization and densification data obtained from an LH 2 storage tank at NASA’s Kennedy Space Centre. The model exhibits excellent agreement with experimental and industrial data across a range of simulated conditions, including zero boil-off in microgravity environments, self-pressurization of a stored mass of LH 2 , and boil-off from a previously pressurized tank as it is being relieved of vapor.

Keywords: boil-off gas; storage tanks; liquid hydrogen; modelling; stratification; space (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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