Gas phase diffusion coefficient in cemented porous media[J] . Bo Elberling.Journal of Hydrology . 1996 (1)Eberling B (1996) Gas phase diffusion coefficient in cemented porous media. Journal of Hydrology 178:93-108Elberling B.: 1996. Gas phase diffusion coefficient in cemented porous media. ...
The majority of fate and transport models are based on single component behavior modeled by Fick's Law using the pure gas phase diffusion coefficient. The enhancement of the individual diffusive flux in a multicomponent mixture observed in this study and accounted for by pseudo-advec-tive mass ...
a calculation modeling of gas phase diffusion transport within micro-pores was established. Taken CH3SiCl3as precursor for depositing SiC as example, the diffusion coefficient, decomposing reaction rate
gas phase diffusion constitutes the sole mechanism for gas transfer between the environment and the cells (see Bridges and Scheid, this volume). This review intends to outline the physical principles that govern diffusion and to provide a basis for estimating the relative significance of diffusion ...
(phase transition) at 30°C, the permeability coefficients of the test gases exponentially increase with gas temperature and the temperature dependence curves do not exhibit an inflection in the glass transition region. On the other hand, the Arrhenius plots of the diffusion coefficients show a ...
and the release process of supersaturated TDG is accelerated5. Niu6observed that the release rate of supersaturated TDG increased with an increasing amount of activated carbon in water. The process of the gas phase fraction separating out from water can promote the formation of bubbles, and the ...
Often, the gas-phase concentration is in equilibrium with the aqueous phase. Then Henrys law can be used to describe the distribution between the phases provided that the Henrys law coefficient is known. In some cases, thermodynamic equilibrium will not be reached and it is necessary to use ...
coefficient to be D = 0.13 m 2 /day. a. (1 point) Based on the graph, is the direction of net methane diffusion to the left or to the right? Explain briefly how you know. Answer: Net diffusion is to the right, because diffusion occurs ...
Liquid/liquid extraction or solid-phase extraction is commonly used to perform this enrichment step. However, aiming at minimizing the amount of solvent required, other preconcentration techniques have been developed recently. Among them, two techniques can take advantage of the use of supported (...
Thermal characterization of granular materials using a thermal-wave resonant cavity under the dual-phase lag model of heat conduction The process of heat transport in granular materials has generated a great deal of controversy. It has been claimed that the process is affected not only by... J....