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Title: System and method for measuring permeability of materials

Patent ·
OSTI ID:1088670
;

Systems and methods are provided for measuring the permeance of a material. The permeability of the material may also be derived. Systems typically provide a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The mass flow rate of permeated fluid as a fraction of the combined mass flow rate of gas and permeated fluid is used to calculate the permeance of the material. The material test sample may be a sheet, a tube, or a solid shape. Operational test conditions may be varied, including concentration of the fluid, temperature of the fluid, strain profile of the material test sample, and differential pressure across the material test sample.

Research Organization:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22800
Assignee:
Babcock & Wilcox Technical Services Y-12, LLC (Oak Ridge, TN)
Patent Number(s):
8,479,563
Application Number:
13/438,192
OSTI ID:
1088670
Country of Publication:
United States
Language:
English

References (12)

Method and apparatus for providing a precise amount of gas at a precise humidity patent February 2001
Method and apparatus for measuring the concentration of a gaseous or volatile substance in a liquid patent September 1984
Determining organic compounds using a membrane patent December 1987
Gas Detection Apparatus patent April 1969
Method and Device for Determining the Concentration of a Substance in a Fluid patent November 1975
Method for evaluating a test fluid patent December 2003
Method and apparatus for measuring concentrations of gaseous or volatile substances in liquids patent March 1981
Large-scale cold cup apparatus for vapor barriers resistance (permeance) testing patent December 1985
Method and equipment for measuring vapour flux from surfaces patent December 2009
Method and equipment for measuring vapor flux from surfaces patent August 2002
Apparatus and method for testing compositions in contact with a porous medium patent September 2002
Method for evaluating a test fluid patent August 2002

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Related Subjects

36 MATERIALS SCIENCE