Development of an Analytical Method for Simultaneous Heat and Moisture Transfer in Building Materials Utilizing Transfer Function Method
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 5
Abstract
In this paper, an analytical method utilizing the transfer function method has been proposed to evaluate the thermal and moisture transfer behavior in porous building material. Both heat and moisture transfer are simultaneously considered and their interactions are modeled. The coupled partial differential equations and boundary conditions are first subjected to Laplace transformation, and then the equations are solved by introducing the transfer function method. The transient temperature and moisture content distribution across the building material can thus be easily obtained from the solutions. The results are compared with the experimental data and the other numerical solution available in the literature. A good agreement is obtained.
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References
Chang, W. J., Chen, T. C., and Weng, C. I. (1991). “Transient hygrothermal stress in an infinitely long annular cylinder: coupling of heat and moisture.” J. Therm. Stresses, 14, 439–454.
Chang, W. J., and Weng, C. I. (2000). “An analysis solution to coupled heat and mass diffusion transfer in porous materials.” Int. J. Heat Mass Transfer, 43, 3621–3632.
Chen, Y. M., and Chen, Z. K. (1997). “The simultaneous heat and moisture transfer equations of porous building envelop and their linearization.” Chin. J. Basic Sci. Eng., 5(2), 367–382.
Cheroto, S., Guigon, S. M. S., Ribeiro, J. W., and Cotta, R. M. (1997). “Lumped-differential formulations for drying in capillary porous media.” Drying Technol., 15, 811–835.
Luikov, A. W. (1966). Heat and mass transfer in capillary-porous bodies, Chap. 6, Pergamon, Oxford, U.K.
Mikhailov, M. D., and Ozisik, M. N. (1984). Unified analysis and solutions of heat and mass diffusion, Wiley, New York.
Thomas, H. R., Morgan, K., and Lewis, R. W. (1980). “A fully nonlinear analysis of heat and mass transfer problems in porous bodies.” Int. J. Numer. Methods Eng., 15, 1381–1393.
Wijeysundera, N. E., et al. (1995). “Numerical simulation of the transient moisture transfer through porous insulation.” Int. J. Heat Mass Transfer, 39, 995–1003.
Wijeysundera, N. E., Hawlader, M. N. A., and Tan, Y. T. (1992). “Water vapor diffusion and condensation in fibrous insulations.” Int. J. Heat Mass Transfer, 32, 2605–2616.
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© 2005 ASCE.
History
Received: May 5, 2004
Accepted: Sep 13, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
Notes
Note. Associate Editor: Carl Liu
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