Numerical Simulation of Coupled Heat and Moisture Transfer in Porous Building Material

Xiao Bin Zhang; Wei Bing Zhu; Si Peng Tan

doi:10.4028/www.scientific.net/AMR.287-290.3106

Paper Titles

Research on the Effects of the Basic Properties of Offset Paper and Art Paper on Printing Dot Reproduction
p.3089

Promoted and Un-Promoted Co/SiO₂ Fischer-Tropsch Catalysts
p.3093

The Metallographic Structure and Mechanical Properties of the Brazing Weld of 3003 Aluminum Alloy
p.3098

Position and Anti-Swing Control Based on BVP Arithmetic for Bridge Cranes
p.3102

Numerical Simulation of Coupled Heat and Moisture Transfer in Porous Building Material
p.3106

Taguchi Method for 304 Stainless Steel Nd-YAG Laser Beam Welding
p.3112

Multi-Dimensional Grey Construction Deformation Prediction Model Research
p.3116

Study on a Self-Diverting Acid System for Well Stimulation Based on Novel Visco-Elastic Surfactant
p.3120

Laboratory Study on Low Temperature Rapid Strength Cement Slurry
p.3127

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 287-290Numerical Simulation of Coupled Heat and Moisture...

Numerical Simulation of Coupled Heat and Moisture Transfer in Porous Building Material

Abstract:

Building envelope is a typical porous medium. The internal accumulation of moisture will not only affect the structural strength, but also cause the growth of bacterial in the structure, which can seriously affect the indoor air quality. In this work, the modified Luikov coupled heat and moisture transfer equation is derived by using finite difference method. A FORTRAN computer code is developed based on the supplied experiment conditions. The effect of various parameters (include temperature gradient, sorption isotherm, specific humidity etc.) on the coupled heat and moisture transfer and the relationship between the temperature gradient and the moisture gradient are discussed. The results show that the simulation results agree well with the experimental data.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

3106-3111

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.3106

Citation:

Cite this paper

Online since:

July 2011

Authors:

Xiao Bin Zhang, Wei Bing Zhu, Si Peng Tan

Keywords:

Coupled Heat-Moisture Transfer, Numerical Simulation, Porous Medium

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Zhuqing LI. On the Heat and Moisture Transfer in Porous Materials. China Housing Facilities (in Chinese), 2003, (5), p.34–35.

Google Scholar

[2] A. V. Luikov. Heat and Mass Transfer. Mir Publishers, 1980, pp.520-586.

Google Scholar

[3] Menghao Qin. Transp Porous Med, 2008, (72), p.255–271.

Google Scholar

[4] Menghao Qin. Automation in Construction, 2009, 18(5), pp.624-631.

Google Scholar

[5] Menghao Qin. Construction and Building materials. 2008, 23(2), pp.967-975.

Google Scholar

[6] Janz M. Moisture Transport and Fixation in Porous Materials at High Moisture Levels. PhD thesis, Lund University, 2000, pp.24-28.

Google Scholar

[7] Rafik Belarbi. Building and Environment, 2007, 43(12), p.2154–2162.

Google Scholar

[8] Künzel H.M. One and Two-dimensional Calculation of the Simultaneous Heat and Moisture Transport in Building Components, Using Simple Parameters. Stuttgart: Fraunhofer Institute of Building Physics, 1995, p.9, 7, 13, 15, 17-18.

Google Scholar