Studies have been made by a sorption-desorption procedure on the diffusion of water vapor at relative humidities of from 30 to 85% into the polymers, polyvinyl acetate cellulose acetate (37.9% acetyl), cellulose nitrate (12.0% N), 6–10 nylon, and polyvinyl alcohol. Diffusion of water in ...
S. Broecker ( 1996 ), Fractionation of soil gases by diffusion of water vapor, gravitational settling, and thermal diffusion , Geochim. Cosmochim. Acta , 60 ( 6 ), 1005 – 1018 .Severinghaus, J. P., Bender, M. L., Keeling, R. F., and Broecker, W. S.: Fractionation of soil ...
Transient moisture sorption experiments have been performed in order to examine diffusion of water vapor in paper sheets. A Moisture Sorption Tester (MST), designed and built in house, was used to obtain transient moisture sorption curves and sorption isotherms of paper. The papers were made using...
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It has been demonstrated that water vapor consistently transports in asphalt pavements. The relative humidity differential, which exists between the subgrade below and the atmosphere above the pavement, is a major contributor to the water vapor diffusion. However, the effect of the relative humidity ...
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We describe an experimental method for studying rapid processes of water vapor sorption by fine-dispersed and porous materials. The concentration of gas-phase water molecules is detected during adsorption by a laser-diode spectrometer. The kinetic pressure curves are recorded in a time window of 10...
Diffusion Coefficient of water vapor in a gas mixture « on: July 01, 2019, 02:29:10 AM » Can anyone please suggest a formula to calculate the diffusion coefficient of water vapor in a gas mixture of N2, CO2 ,O2, and H2O at 1 atm and 0 to 200 °C.I found this formula. ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook Vapor diffusion Movement of water vapor through a material; water vapor can diffuse through even a solid material if the material’s permeability is high enough. ...
Can anyone please suggest a formula to calculate the diffusion coefficient of water vapor in a gas mixture of N2, CO2,O2, and H2O at 1 atm and 0 to 200 °C. I found this formula. D'A= (1 - YA)/(YB/DAB+ YC/DAC+ ..)