Gas Diffusivity in Fractal - Characterized Porous Materials

Ge Zhang; Yun Fan Zhang; Fei Ma

doi:10.4028/www.scientific.net/AMR.224.24

Paper Titles

Factors Influencing Bonding Strength of Geopolymer-Aggregate Interfacial Transition Zone
p.1

A Text Mining Analysis of the Fly Ash Research Trend (2000-2010)
p.8

Discussion on Guidance Space and Mediation Space Environment Design in Cinema
p.12

Application of Non-Structural Fuzzy Decision Method in Selection of Partners
p.17

Gas Diffusivity in Fractal - Characterized Porous Materials
p.24

Appropriate Sustainable House Design for China’s Countryside
p.29

Transformation of Traditional Industrial Regions into Campus in Sustainable Way
p.34

Ecological Agriculture Technology in Urban Agriculture
p.38

Test and Research of Solar Water Heating System on High-Rise Residences
p.42

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 224Gas Diffusivity in Fractal - Characterized Porous...

Gas Diffusivity in Fractal - Characterized Porous Materials

Abstract:

The porous materials are usually the sources or sinks of indoor volatile organic compounds (VOC). In order to predict the VOC emission rate and choose best adsorbents, reasonable estimation of the diffusion coefficients of porous materials is required. Porous materials were usually depicted as a random network of interconnected pores of unspecified sizes and shapes. It may generate deviation to assume the network as simple topological structures. This paper investigated the diffusion coefficients of porous materials with the fractal theory and derived their diffusion coefficients considering the pore size distribution of the materials. The calculated result was validated by published experimental data.

You might also be interested in these eBooks

Green Building Technologies and Materials

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 224)

Pages:

24-28

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.224.24

Citation:

Cite this paper

Online since:

April 2011

Authors:

Ge Zhang, Yun Fan Zhang, Fei Ma

Keywords:

Diffusion Coefficient, Fractal, Porous Material, VOC

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Wolkoff P, Volatile Organic Compounds - Sources, Measurements, Emissions, and the Impact on Indoor Air Quality. Indoor Air, Vol.5 (1995), pp.5-73.

DOI: 10.1111/j.1600-0668.1995.tb00017.x

Google Scholar

[2] Won D Y, Corsi R L and Rynes M, New Indoor Carpet as an Adsorptive Reservoir for Volatile Organic Compounds. Environmental Science & Technology, Vol. 34 (2000), pp.4193-4198.

DOI: 10.1021/es9910412

Google Scholar

[3] Haghighat F, Lee C S and Ghaly W S, Measurement of Diffusion Coefficients of VOCs for Building Materials: Review and Development of a Calculation Procedure. Indoor Air, Vol.12 (2002), pp.81-91.

DOI: 10.1034/j.1600-0668.2002.1e008.x

Google Scholar

[4] Cristadoro G, Fractal Diffusion Coefficient from Dynamical Zeta Functions. Journal of Physics A: Mathematical and General, Vol.39 (2006), pp.151-157.

DOI: 10.1088/0305-4470/39/10/l01

Google Scholar

[5] Carniglia S C, Construction of the Tortuosity Factor from Porosimetry. Journal of Catalysis, Vol.102 (1986), pp.401-418.

DOI: 10.1016/0021-9517(86)90176-4

Google Scholar

[6] Blondeau P, Tiffonnet A L, Damian A, et al. Assessment of Contaminant Diffusivities in Building Materials from Porosimetry Tests. Indoor Air, Vol.13 (2003), pp.302-310.

DOI: 10.1034/j.1600-0668.2003.00208.x

Google Scholar

[7] Ruthven D M, Principle of Adsorption and Adsorption Processes, New York : Wiley, 1984.

Google Scholar