Presented by Michael Baldwin 1 Paper coauthors Ali Ghavami 2 S Mostafa Ghiaasiaan 2 and Alok Majumdar 3 1 NASA MSFC Huntsville ALGeorgia Institute of Technology Atlanta GA 2 Georgia Institute of Technology Atlanta GA 3 NASA MSFC Hunts ID: 1042926
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1. Critical Heat Flux of Liquid Hydrogen, Liquid Methane, and Liquid Oxygen: A Review of Available Data and Predictive ToolsPresented by: Michael Baldwin1Paper co-authors: Ali Ghavami2, S. Mostafa Ghiaasiaan2, and Alok Majumdar31: NASA MSFC, Huntsville, AL/Georgia Institute of Technology, Atlanta, GA 2: Georgia Institute of Technology, Atlanta, GA 3: NASA MSFC, Huntsville, AL
2. AgendaMotivation for critical heat flux (CHF) modelingBackground: pool boiling curve/flow boiling curveAvailability of pool and flow boiling CHF data for LH2, LCH4, LO2ResultsOngoing/Future work
3. Motivation for CHF ModelingTank and line chilldown (pool and flow boiling)Avoidance of CHF in “heated-tube” applications (flow boiling)In-space tank-to-tank propellant transfer lineApplication:-Cryogenic fuel depotsTank-to-pump propellant feedlineApplication:-Ascent and Descent Stages-Nuclear Thermal Propulsion (NTP)Credit: ULAInforms insulation design and/or degree of propellant subcooling neededThese lines could be on the order of tens of feet or higher in length
4. Background: Pool Boiling4
5. Background: Flow Boiling5[1]
6. CHFCritical heat flux is a vital point in the boiling curveIf CHF occurs, heat transfer plummets and the structural integrity of the heated surface could be compromisedIn all propellant transfer applications where a heated-tube boiling situation is present, CHF is to be avoided at all cost.
7. State of available CHF data for H2 [2-3]Pool Boiling Flow Boiling
8. State of available CHF data for CH4 [2-3]Pool Boiling Flow Boiling These data were not considered in the analysis Glickstein and Whitesides (1967) [3] is a valid source but was not found
9. State of available CHF data for O2 [2-3]Pool Boiling Flow Boiling
10. Correlations ConsideredZuber (1961) or Kutateladze (1952)- seemingly identically derived correlationsLurie and Noyes (1964)Sun and Lienhard (1970)Kandlikar (2001)Von Glaun and Lewis (1960)- water and cryo dataKatto and Ohno (1984)- R-12 dataShah (1987)- many fluidsMudawar and Maddox (1990)- FC-72 dataKatto (1992)Hall and Mudawar (2000)- water data
11. Hydrogen CHF RecommendationsPool Boiling: Sun and Reinhard (1970) Flow Boiling: Katto and Ohno (1984)
12. Methane and Oxygen Pool CHF RecommendationsMethane: Lurie and Noyes (1964) Oxygen: Sun and Lienhard (1970)
13. Methane and Oxygen Flow CHF Recommendations(This chart was intentionally left blank)
14. Ongoing/Future WorkContinuing to collect quality datasets (primarily flow CH4 and O2)Ones we missed, e.g. Glickstein and Whitesides (1967) methaneFuture data setsPlease let us know if you are aware of any data sets we missedMichael.r.Baldwin@nasa.govA flow boiling O2 experiment to capture pre-CHF HTC, post-CHF HTC, CHF data, and two-phase pressure drop data has been discussed and proposed as future work to be conducted at NASA MSFC or NASA GRC
15. References[1] Sherley, Joan E. "Nucleate boiling heat-transfer data for liquid hydrogen at standard and zero gravity." Advances in Cryogenic Engineering: Proceedings of the 1962 Cryogenic Engineering Conference University of California Los Angeles, California August 14–16, 1962. Springer US, 1963.[2] Baldwin, Michael, et al. "Pool boiling in liquid hydrogen, liquid methane and liquid oxygen: A review of available data and predictive tools." Cryogenics 115 (2021): 103240.[3] Baldwin, Michael, et al. "Flow boiling in liquid hydrogen, liquid methane and liquid oxygen: A review of available data and predictive tools." Cryogenics 116 (2021): 103298.