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Experimental investigation of drying by pore networks: influence of pore size distribution and temperature

Vorhauer, Nicole and Metzger, Thomas and Tsotsas, Evangelos and Prat, Marc Experimental investigation of drying by pore networks: influence of pore size distribution and temperature. (2012) In: 4th International Conference on Porous Media and its Applications in Science, Engineering and Industry, 17 June 2012 - 22 June 2012 (Postdam, Germany). (Unpublished)

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Isothermal and non-isothermal drying of pore structures has been experimentally investigated using 2D square network models of interconnected etched channels with different (Gaussian) distributions of the channel width. In experiments with imposed temperature gradients, the temperatures either increase from the open side of the network with increasing network depth (referred to as the positive temperature gradient) or the temperatures decrease with increasing distance from the network opening (i.e. a negative temperature gradient). Experiments reveal that the observed phase patterns, or the distributions of liquid and gas, during drying are significantly depending on the direction of the temperature gradient; but also the presence of macro channels can have a strong effect on the phase patterns as well as on drying time.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-04022862
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Otto Von Guericke Universität Magdeburg - OVGU (GERMANY)
Laboratory name:
Deposited On:24 Jan 2014 14:06

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