Pore-Scale Modelling of Transport Phenomena in Drying
The work in this chapter is concerned with drying of capillary porous media and investigates how material properties characterizing the pore scale influence macroscopic process behaviour. A first approach to the problem takes a bundle-of-capillaries representation of pore space to parameterise a traditional continuous model of drying. In a second approach, the porous structure is represented by a network of pores, and transport is described by discrete rules at the pore level. By applying these two methods, the influence of pore structure, namely pore volume distribution and spatial correlations of pore size, is studied. Additionally, the role of individual transport phenomena, namely liquid viscosity and heat transfer, for drying behaviour is investigated.
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- Irawan, A.: Isothermal drying of pore networks: Influence of pore structure on drying kinetics. PhD Thesis, Otto-von-Guericke-University Magdeburg, Germany (2006)Google Scholar
- Irawan, A., Metzger, T., Tsotsas, E.: Pore network modelling of drying: combination with a boundary layer model to capture the first drying period. In: Proceedings of 7th World Congress of Chemical Engineering, Glasgow, Scotland, pp. 33–42 (2005)Google Scholar
- Kharaghani, A., Metzger, T., Tsotsas, E.: Mechanical effects during isothermal drying: a new discrete modelling approach. In: 16th Int Drying Symposium, Hyderabad, India (submitted to 2008)Google Scholar
- Metzger, T., Tsotsas, E.: Viscous stabilization of drying front: three-dimensional pore network simulations. Chem Eng Research Design, (in press, 2008)Google Scholar
- Metzger, T., Irawan, A., Tsotsas, E.: Discrete modelling of drying kinetics of porous media. In: Eikevik, T.M., Alves-Filho, O., Strommen, I. (eds.) Proceedings of 3rd Nordic Drying Conference (NDC 2005), Karlstad, Schweden (2005)Google Scholar
- Metzger, T., Irawan, A., Tsotsas, E.: Remarks on the paper “Extension of Hoshen-Kopelman algorithm to non-lattice environments. by Al-Futaisi, A., Patzek, T.W. Physica A 321, 665–678 (2006); Physica A 363, 558–560Google Scholar
- Metzger, T., Tsotsas, E., Prat, M.: Pore-network models: A powerful tool to study drying at the pore level and understand the influence of structure on drying kinetics. In: Tsotsas, E., Mujumdar, A.S. (eds.) Modern drying technology. Computational tools at different scales, vol. 1, Wiley-VCH, Weinheim (2007d)Google Scholar
- Surasani, V.K., Metzger, T., Tsotsas, E.: A non-isothermal pore network drying model: Influence of gravity. In: Proceedings of 6th European Congress of Chemical Engineering (ECCE-6), Copenhagen, No. 2131 (2007)Google Scholar
- Surasani, V.K., Metzger, T., Tsotsas, E.: Influence of heating mode on drying behaviour of capillary porous media: pore scale modelling. Submitted to Chemical Engineering Science (2008b)Google Scholar
- Turner, I.W., Perré, P.: A synopsis of the strategies and efficient resolution techniques used for modelling and numerically simulating the drying process. In: Turner, I., Mujumdar, A.S. (eds.) Mathematical modeling and numerical techniques in drying technology, Marcel Dekker, New York (1996)Google Scholar
- Vu, T.H.: Influence of pore size distribution on drying behaviour of porous media by a continuous model, PhD Thesis, Otto-von-Guericke-University Magdeburg, Germany (2006a)Google Scholar
- Vu, T.H., Metzger, T., Tsotsas, E.: Influence of pore size distribution via effective parameters in a continuous drying model. Proceedings of 15th International Drying Symposium, Budapest A, 554–560 (2006b)Google Scholar