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The Boiling eXperiment Facility (BXF) for the Microgravity Science Glovebox (MSG)Boiling is an effective means of cooling by removing heat from surfaces through vaporization of a working fluid. It is also affected by both the magnitude and direction of gravity. By conducting pool boiling tests in microgravity, the effect of buoyancy n the overall boiling process and the relative magnitude of other phenomena can be assessed. The Boiling eXperiment Facility (BXF) is being built for the Microgravity Science Glovebox. This facility will conduct two pool boiling studies. The first study the Microheater Array Boiling Experiment (MABE) uses two 96 element microheater arrays, 2.7 mm and 7.0 mm in size, to measure localized hear fluxes while operating at a constant temperature. The other experiment, the Nucleate Pool Boiling eXperiment (NPBX) uses a 85 mm diameter heater wafer that has been "seeded" with five individually-controlled nucleation sites to study bubble nucleation, growth, coalescence and departure. The BXF uses normal-perfluorohexane as the test fluid and will operate between pressures of 60 to 244 Pa. and temperatures of 35 to 60 C. Both sets of experimental heaters are highly instrumented. Pressure and bulk fluid temperature measurements will be made with standard rate video. A high speed video system will be used to visualize the boiling process through the bottom of the MABE heater arrays. The BXF is currently scheduled to fly on Utilization Flight-13A.1 to the ISS with facility integration into the MSG and operation during Increment 15
Document ID
20060013415
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
McQuillen, John (NASA Glenn Research Center Cleveland, OH, United States)
Chao, David (NASA Glenn Research Center Cleveland, OH, United States)
Vergilii, Frank (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2006
Subject Category
Space Processing
Meeting Information
Meeting: Habitation 2006
Location: Orlando, FL
Country: United States
Start Date: February 5, 2006
End Date: February 8, 2006
Funding Number(s)
WBS: WBS 572.04.02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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