Diffusion of gases in porous solids - simulation and measurements. Tenth quarterly progress report, October 16, 1984-January 15, 1985

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5894402

Evans, J W

Progress has been made on the theoretical aspects of this research. A number of Monte Carlo simulations for ordinary gas diffusion in Swiss cheese solids have now been completed. The results are plotted in the attached figure along with results for simulations of diffusion in cannonball solids which were included in last month's report. Also included in this figure are classical theoretical curves for transport in heterogeneous media. The results of the Monte Carlo simulations agree well with the classical theories. It should be noted that the simulation results and the classical theories are at odds with two frequently used correlations for the tortuosity factor, T, purporting to represent gaseous diffusion in porous solids: T = 1/E, where E = porosity and T = 1/E/sup 2/. 1 figure.

• Research Organization: California Univ., Berkeley (USA). Dept. of Materials Science and Mineral Engineering
• DOE Contract Number: FG22-82PC50796
• OSTI ID: 5894402
• Report Number(s): DOE/PC/50796-T8; ON: DE85008870
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
DIFFUSION
FLUIDS
GASEOUS DIFFUSION
GASES
MATERIALS
MONTE CARLO METHOD
PERMEABILITY
POROUS MATERIALS
RESEARCH PROGRAMS
SIMULATION