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METHOD OF MEASURING THE PERMEABILITY OF A MATERIAL TO A GAS
ES2406360
Method of measuring the permeability of a material to a gas, comprising the steps of: - preparing a test piece (12) of a material whose permeability to a gas is to be measured; - placing said specimen (12) in a device (17) configured to keep its side faces sealed; - connecting at least one gas storage medium (11) to the end of the specimen (12) through which the gas enters; - connecting a flowmeter (15, 25, 35) to the end of the specimen (12) through which the gas exits; - connecting the output of a mass flow detector (22) included in the flow meter (15, 25, 35) to data conversion means (23) connected to a computer; - selecting at least three values of inlet pressure in a manometer-regulator (14); - for each inlet pressure, perform with the flow meter (15, 25, 35) at least one measure of the flow through the test piece (12), and obtain the permeability coefficient k, substituting the average flow value in the equation of darcy; - obtain the coefficient of permeability of the specimen (12) from the average value of the permeability coefficients k. (Machine-translation by Google Translate, not legally binding)
Método de medición de la permeabilidad de un material a un gas, que comprende las etapas de: preparación de una probeta; conectar la probeta por un extremo a un medio de almacenamiento de gas y por el otro extremo a un caudalímetro; conectar el caudalímetro a uno medios de conversión de datos; seleccionar al menos tres valores de presión de entrada; para cada presión de entrada: realizar al menos una medida de caudal que atraviesa la probeta, y obtener el coeficiente de permeabilidad K; obtener el coeficiente de permeabilidad de la probeta a partir del valor promedio de los coeficientes de permeabilidad K.