MicroBooNE Document 1768-v1

Mass Transport of Water in Teflon; a Transient Numerical Analysis

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Document type:
Design or Technical Note
Submitted by:
Erik A. Voirin
Updated by:
Erik A. Voirin
Document Created:
15 Nov 2011, 23:04
Contents Revised:
23 Nov 2011, 00:14
Metadata Revised:
23 Nov 2011, 00:14
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The work shown in this document attempts to quantify the water release of Teflon wire insulation, or any other Teflon body, across a broad temperature range. ANSYS workbench was used to obtain the transient solutions at throughout the temperature range. The solutions and results can be described by a two part piecewise function. Results show a power curve fit to the surface mass flux, which switches to an exponential fit upon drying of the Teflon. Thicker pieces of Teflon would follow along the first power curve fit for longer periods of time. The equation for water release from the surface of a 400 micron thick specimen with respect to temperature and time is given in the report.
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