Determination of change in moisture ratios of some woods during air-drying by finite element analysis

被引：3
作者：
Çolakoǧlu, Mustafa Hilmi [1 ]
机构：
[1] Abdülhak Hamit Caddesi, 06470 Mamak. Ankara
来源：
Journal of Applied Sciences | 2009年 / 9卷 / 22期
关键词：
Finite element analysis; Moisture diffusion; Wood drying;
D O I：
10.3923/jas.2009.4091.4094
中图分类号：
学科分类号：
摘要：
In this study, change of moisture distribution in wood is analyzed by finite element technique. Diffusion of moisture during drying and conduction of heat can be defined by Fourier law. Due to this similarity, heat conduction module is used to estimate the moisture diffusion. Ansys version 12 is used in modeling. Network is created with 2 dimensional link 32 elements. For modeling, the wood types which we know their moisture diffusion coefficients from earlier studies are selected. The properties of a panel having the dimension of 50×1000×1000 mm are used. Moisture diffusion coefficient under fiber saturation point is assumed as constant. Air-drying of wood plates having 40% moisture content in an environment having 10% moisture content is modeled. © 2009 Asian Network for Scientific Information.
引用
收藏
页码：4091 / 4094
页数：3
相关论文
共 13 条
  • [1] FEA Software Manual Release 13, (2009)
  • [2] Babiak M., Diffusion coefficients of beech and black locust wood, Proceedings of the 3rd IUFRO Symposium Wood Structure and Properties, pp. 65-70, (1998)
  • [3] Bozkurt Y., Goker Y., Fiziksel ve mekanik aǧaç teknolojisi, İ.Ü.orman fakültesi yayinlar, (1996)
  • [4] Fotsing J.A.M., Tchagang C.W., Experimental determination of the diffusion coefficients of wood in isothermal conditions, J. Heat Mass Transfer, 41, pp. 977-980, (2005)
  • [5] Incropera F.D., de Witt D.P., Fundamentals of Heat and Mass Transfer, (1990)
  • [6] Kantay R., Kereste kurutma buharlama, (1993)
  • [7] Khazai J., Water absortion characteristics of three wood varieties, Cercetǎri Agronomice Moldova, 134, pp. 5-16, (2007)
  • [8] Liu J.Y., Simpson W.T., Solutions of diffusion equation with constant diffusion and surface emission coefficients, J. Drying Technol, 15, pp. 2459-2477, (1997)
  • [9] Resch H., Kang H., Hoag M., Drying douglas fir lumber a computer simulation, Wood Fiber Sci, 21, pp. 207-218, (1989)
  • [10] Rosen H.N., The influence of external resistance on moisture absorption rates in wood, J. Wood Fiber, 10, 3, pp. 218-228, (1978)
12