Thermal Modeling of Zero Boil Off Tank Experiment
Open accessAbstract
Understanding fluid behavior in microgravity environments is essential to further development of cryogenic storage in space environments. The Zero Boil Off Tank (ZBOT) experiment was designed to investigate two-phase pressurization and depressurization of a tank in a microgravity environment. The test fluid was the refrigerant Perfluoro-normal-Pentane (PNP). Thermal modeling for the ZBOT model was conducted using Thermal Desktop and SINDA/FLUINT. The temperature distribution within the fluid of the tank is of particular interest. This particular work is centered on ascertaining the thermal behavior of the refrigerant in order to build more complete models of fluid in microgravity. Separate cases were run modeling experiments that were conducted both on the ground and on the International Space Station (ISS) to compare 1g and microgravity environments. The microgravity modeling cases consisted of a fluid lump representing the vapor ullage suspended in a solid to represent the liquid. Mass flow between the liquid and vapor was modeled using the Schrage equation for mass flow. Initial results indicate that the pressure rise and temperature increase within the fluid closely align with the experimental data by matching initial conditions of the experiment. This work is ongoing and will yield further insights into the thermal behavior of fluid mixing in microgravity.
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This capability of the model to simulate storage at sub-atmospheric pressures is highly relevant to LH2 applications in microgravity environments, including the cryogenic storage systems needed for future long-term space missions.
“This capability of the model to simulate storage at sub-atmospheric pressures is highly relevant to LH 2 applications in microgravity environments, including the cryogenic storage systems needed for future long-term space missions [90].”
From Modelling of Liquid Hydrogen Boil-Off (2022) · cites this paper as [90]
The Background (page unavailable) says cryogenic-fluid storage in microgravity is crucial for future long-term space missions, and Future Work proposes comparing the model’s results with a cryogen in microgravity. Our copy does not establish that the model can simulate storage at sub-atmospheric pressures or specifically address LH2; the experiment used perfluoro-normal-pentane. (LLM, conf=0.84)
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Modelling of Liquid Hydrogen Boil-Off
Al Ghafri, S. Z. S., Swanger, A., Jusko, V., Siahvashi, A., Perez, F., Johns, M. L., & May, E. F. (2022) · Energies · doi:10.3390/en15031149 · Cited by 131 · see citing works
“This capability of the model to simulate storage at sub-atmospheric pressures is highly relevant to LH2 applications in microgravity environments, including the cryogenic storage systems needed for future long-term space missions [90].”
BackgroundWang, H., Wang, B., Xu, T., Shen, X., He, Y., Zhou, W., Pfotenhauer, J., Jin, T., & Gan, Z. (2024) · Fuel · doi:10.1016/j.fuel.2024.131247 · Cited by 37 · see citing works
- Authors
- Tesny, E. M., & Hauser, D. M.
- Affiliations
- Glenn Research Center (US)
- Venue
- AIAA Propulsion and Energy 2019 Forum
- Published
- 2019-08-16
- OpenAlex
- W2967229613
- Cited by
- 4
- References
- 0
- Citations by year
- 2026: 1 · 2024: 1 · 2023: 1 · 2022: 1
- FWCI
- 0.45
- Type
- conference paper
- Language
- en
- Update notices
- correction (2019-09-10)
- Open access
- bronze
- doi.org
- Locations
- AIAA Propulsion and Energy Forum (publishedVersion)
- NASA STI Repository (National Aeronautics and Space Administration) (submittedVersion)
- Funders
- Case Western Reserve University
- Space Technology Mission Directorate
- Topics
- Physical Sciences › Engineering › Aerospace Engineering › Spacecraft and Cryogenic Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Boiling Studies
- Physical Sciences › Engineering › Computational Mechanics › Heat transfer and supercritical fluids
- Keywords
- cryogenic storage, microgravity, depressurization, International Space Station, thermal modeling, SINDA/FLUINT, fluid mixing
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