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Fundamental Boiling and RP-1 Freezing ExperimentsThis paper describes results from experiments performed to help understand certain aspects of the MC-1 engine prestart thermal conditioning procedure. The procedure was constrained by the fact that the engine must chill long enough to get quality LOX at the LOX pump inlet but must be short enough to prevent freezing of RP-1 in the fuel pump. A chill test of an MC-1 LOX impeller was performed in LN2 to obtain data on film boiling, transition boiling and impeller temperature histories. The transition boiling data was important to the chill time so a subsequent experiment was performed chilling simple steel plates in LOX to obtain similar data for LOX. To address the fuel freezing concern, two experiments were performed. First, fuel was frozen in a tray and its physical characteristics were observed and temperatures of the fuel were measured. The result was physical characteristics as a function of temperature. Second was an attempt to measure the frozen thickness of RP-1 on a cold wall submerged in warm RP-1 and to develop a method for calculating that thickness for other conditions.
Document ID
20020018567
Document Type
Preprint (Draft being sent to journal)
Authors
Goode, Brian
(NASA Marshall Space Flight Center Huntsville, AL United States)
Turner, Larry D.
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: Thermal and Fluids Analysis Workshop
Location: Huntsville, AL
Country: United States
Start Date: September 10, 2001
End Date: September 14, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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