A study on the separation of diffusion and surface emission coefficients in wood

Drying Technology

Volumn 15, Issue 5, 1997, Pages 1457-1473

  Cai, Liping ^a   Avramidis, Stavros ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

Diffusion coefficient; Moisture; Non linear simplex; Surface emission coefficient; Visual Basic; Wood

Indexed keywords

COMPUTATIONAL METHODS; COMPUTER SOFTWARE; DATA REDUCTION; DIFFUSION IN SOLIDS; MOISTURE; SORPTION; STATISTICAL METHODS; SURFACE PHENOMENA;

NONLINEAR SIMPLEX; SURFACE EMISSION COEFFICIENTS;

WOOD;

EID: 0031146509     PISSN: 07373937     EISSN: None     Source Type: Journal    
DOI: 10.1080/07373939708917303     Document Type: Article

References (30)

1. Avramidis, S. and J.F. Siau. 1987. An investigation of the external and internal resistance to moisture diffusion in wood. Wood Sci. Technol. 21: 249-256
2. Burley, D. M. 1974. Studies in optimisation. International Textbook Company Limited: 18-59
3. Chen, Y., E.T. Choong and D.M. Wetzel. 1995. Evaluation of diffusion coefficient and surface emission coefficient by an optimisation technique. Wood and Fibre Sci. 27(2): 178-182
4. Choong, E.T. 1965. Diffusion coefficients of softwoods by steady-state and theoretical methods. Forest Prod. J. 15(11):21-27
5. Choong, E.T. and C. Skaar. 1969. Separating internal and external resistance to moisture removal in wood drying. Wood Sci. 1(4): 200-202
6. Choong, E.T. and C. Skaar. 1972. Diffusivity and surface emissivity in wood drying. Wood Fibre 4(2): 80-86
7. Dixon, L. C. W. 1972. Non-linear optimisation. Crane, Russak & Company, Inc. New York: 65-87
8. Droin-Josserand, A., Taverdet, J.L. and Vergnaud, J.M. 1989. Modelling the process of moisture absorption in three dimensions by wood samples of various shapes: cubic, parallelepipedic. Wood Sci. Technol. 23: 259-271
9. El Kouali, M., J. Bouzon and J.M. Vergnaud. 1992a. Modelling the process of absorption and desorption of water in a sheet beyond the fibre saturation point by considering a two-dimensional transfer Holzforschung. 46:187-192
10. El Kouali. M., J. Bouzon and J.M. Vergnaud. 1992b. Process of absorption and desorption of water in a wood board, with 3-dimensional transport beyond the FSP. Wood Sci. Technol. 26: 307-321
11. El Kouali, M. and J.M. Vergnaud. 1991. Modelling the process of absorption and desorption of water above and below the fibre saturation point. Wood Sci. Technol 25: 327-339
12. Liu, J.Y. 1989. A new method for separating diffusion coefficient and surface emission coefficient. Wood and Fibre Sci. 21(2):133-141
13. Liu, J.Y. and W.T Simpson. 1996. Mathematical relationship between surface emission and diffusion coefficients Drying Technology 14(3&4): 677-699
14. Martley, J.F. 1926. Moisture movement through wood: The steady state. Dept Sci. Ind. Res, Forest Prod. Res. Tech. Paper No. 2
15. Moschler, W.W. and R.E.Martin. 1968. Diffusion equation solutions in experimental wood drying. Wood Sci. 1(1):47-57
16. Mounji, H., J Bouzon and J.M. Vergnaud. 1991. Modelling the process of absorption and desorption of water in two dimensions (transverse) in a square wood beam. Wood Sci. Technol 26: 23-37
17. Mounji, H., M. El Kouali, J. Bouzon and J.M. Vergnaud. 1991. Modelling of the drying process of wood in 3-dimensions. Drying Technol 9 (5): 1295-1314
18. Mounji, H., M. El Kouali and J.M. Vergnaud. 1991. Absorption and desorption of water along the longitudinal axis above and below the fibre saturation point. Holzforschung. 45:141-146
19. Newman, A.B. 1931 The drying of porous solids: Diffusion and surface emission equations. Trans. Am. Inst. Chem. Engr. 27: 203-216
20. Ogura, T. and M. Umehara. 1957. On the effect of temperature, fibre-direction and thickness of board on the diffusion coefficient of wood. J. Japan. Wood Res. Soc. 3 (2): 51-56
21. Rosen, H. N. 1974. Penetration of water into hardwoods. Wood and Fiber. 5(4): 275-287
22. Rosen, H.N. 1976. Exponential dependency of the moisture diffusion coefficient on moisture content. Wood Sci. 8(3): 174-179
23. Rosen, H.N. 1978. The influence of external resistance on moisture adsorption rates in wood. Wood and Fibre 10(3): 218-228
24. Rosen, H.N. 1982. Predicting wood surface moisture content during water vapour sorption Wood Sci. 14(3): 134-137
25. Siau, J.F. 1984. Transport processes in wood. Springer-Verlag, Berlin, Heidelberg, New York and Tokyo
26. Siau, J.F. and S. Avramidis. 1996. The surface emission coefficient of wood. Wood and Fibre Sci. 28(2): 178-185
27. Simpson, W.T. and J.W. Liu. 1991. Dependence of the water vapour diffusion coefficient of aspen on moisture content. Wood Sci. Technol. 26: 9-21
28. Skaar, C. 1954. Analysis of methods for determining the coefficient of moisture diffusion in wood. J. Forest Prod. Res. Soc. 4(6):403-410
29. Soderstrom, Ove and Jarl-Gunnar Salin. 1993 On Determination of surface emission factors in wood drying. Holzforschung. 47: 391-397
30. Stamm, A.J. 1964. Wood and cellulose science. Ronald Press, New York, NY.p.549