A thermally representative tank-to-tank transfer line was designed and tested at SMiRF at NASA Glenn to simulate liquid hydrogen transfer from a Low Earth Orbit depot storage tank to a customer receiver tank. The line was equipped with three external skin silicon diode measurements, one internal stream temperature measurement, and a high speed imaging system to view flow profiles as the system chilled down from 250K to LH2 temperatures. Image: Two phase flow video stills correlated with temperature measurements shows the time evolution of chill down. Skin measurements indicate chill down is nearly complete within 20s due to annular flow and liquid layer along wall, but internal stream temperature doesn't bottom out until >140s due to bubbly flow. Majority of chill down is spent in annular and bubbly flow regimes. SD1-3 are successive skin diodes mounted along the transfer line.
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Flow Visualization and Stream Temperature Measurement of Liquid Hydrogen Line Chill Down Experiments
Jeremy Styborski
jeremy.styborski@gmail.com
Jeremy Styborski
Turbine Durability, Hot Section Engineering, Pratt & Whitney, East Hartford, Connecticut, 06118, United States
jeremy.styborski@gmail.com
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Jeremy Styborski
Turbine Durability, Hot Section Engineering, Pratt & Whitney, East Hartford, Connecticut, 06118, United States
jeremy.styborski@gmail.com
Corresponding author.
J. Heat Transfer. Feb 2015, 137(2): 020904
Published Online: February 1, 2015
Article history
Received:
September 9, 2014
Revised:
September 10, 2014
Online:
November 25, 2014
Citation
Styborski, J. (February 1, 2015). "Flow Visualization and Stream Temperature Measurement of Liquid Hydrogen Line Chill Down Experiments." ASME. J. Heat Transfer. February 2015; 137(2): 020904. https://doi.org/10.1115/1.4029014
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