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Analysis of Screen Channel LAD Bubble Point Tests in Liquid Methane at Elevated Temperature

Jason Hartwig·John McQuillen
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Abstract

This paper examines the effect of varying the liquid temperature and pressure on the bubble point pressure for screen channel Liquid Acquisition Devices in cryogenic liquid methane using gaseous helium across a wide range of elevated pressures and temperatures. Testing of a 325 x 2300 Dutch Twill screen sample was conducted in the Cryogenic Components Lab 7 facility at the NASA Glenn Research Center in Cleveland, Ohio. Test conditions ranged from 105 to 160K and 0.0965 – 1.78 MPa. Bubble point is shown to be a strong function of the liquid temperature and a weak function of the amount of subcooling at the LAD screen. The model predicts well for saturated liquid but under predicts the subcooled data.

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Reaction Control SystemAscent Propulsion SystemsCharge Coupled DeviceNational Institute of Standards and TechnologyOrbital Maneuvering SystemPropulsion SystemPropellant Management DeviceSurface TensionCryogenic PropellantsFluid ManagementInterfacial TensionHeliumBubblesCryogenicsCryogenic FluidsLiquid Methane

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Jason Hartwig, John McQuillen. 2012-11-06. Analysis of Screen Channel LAD Bubble Point Tests in Liquid Methane at Elevated Temperature. https://ntrs.nasa.gov/citations/20120002752

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Ascent Propulsion Systems subjectBubbles subjectCharge Coupled Device subjectCryogenic Fluids subjectCryogenic Propellants subjectCryogenics subjectFluid Management subjectHelium subjectInterfacial Tension subjectLiquid Methane subjectNational Institute of Standards and Technology subjectOrbital Maneuvering System subject

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