Abstract
A theoretical and experimental analysis of the phase change of a volatile liquid in an unsaturated soil is presented. Expression of the rate of phase change of the pore liquid is developed within the framework of nonequilibrium thermodynamics. An experiment is proposed in which the value of the phenomenological coefficient associated with this expression is measured. Two examples of results concerning the volatilisation of water and of a volatile hydrocarbon in a silty clayey sand illustrate the potentiality of the experiment. Variation of the phase change coefficient was determined at 30°C for both fluids and at 80°C for heptane, versus the liquid content of the soil.
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Armstrong, J. E., Frind, E. O. and McClellan, R. D.: 1994, Nonequilibrium mass transfer between the vapor, aqueous, and solid phases in unsaturated soils during vapor extraction, Water Resour. Res. 30(2), 355-368.
Azizi, S., Moyne, C. and Degiovanni, A.: 1988, Approche expérimentale et théorique de la conductivityé thermique des milieux poreux humides-partie 1-expérimentation, Int. J. Heat Mass Transfer 31(11), 2305-2317.
Bear, J. and Nitao, J. J.: 1995, On equilibrium and primary variables in transport in porous media, Transport in Porous Media 18, 151-184.
Bear, J. and Buchlin, J.-M.: 1991, Modelling and applications of transport phenomena in porous media, Vol. 5, Kluwer Academic Publishers, p. 202.
Bénet, J.-C.: 1981, Contribution à l'étude thermodynamique des milieux poreux non saturés avec changement de phase, PhD. Dissertation, Univ. of Montpellier II, France.
Bénet, J.-C. and Jouanna, P.: 1982, Phenomenological relation of phase change of water in a porous medium: Experimental verification and measurement of the phenomenological coefficient, Int. J. Heat Mass Transfer 25(11), 1747-1754.
Bénet, J.-C. and Jouanna, P.: 1983, Non équilibre thermodynamique dans les milieux poreux non saturés avec changement de phase, Int. J. Heat Mass Transfer 26(11), 1585-1595.
Brusseau, M. L.: 1994, Transport of reactive contaminants in heterogeneous porous media, Reviews of Geopysics 32(3), 285-313.
Daian, J.-F.: 1989, Condensation and isothermal water transfer in cement mortar: part II-transient condensation of water vapor, Transport in Porous Media 4, 1-16.
Donaldson, S. G., Miller, C. G. and Miller, W.W.: 1992, Remediation of gasoline-contaminated soil by passive volatilisation, J. Environ. Qual. 21(1), 94-102.
Gierke, J. S., Hutzler, N. J. and McKenzie, D. B.: 1992, Vapor transport in unsaturated soil columns: implications for vapor extraction, Water Resour. Res. 28(2), 323-335.
Gray, W. G. and Lee, P. C. Y.: 1977, On the theorems for local volume averaging of multiphase systems, Int. J. Multiphase Flow 3, 333-340.
Massard, P.: 1977, Approche thermodynamique des phénomènes de dissolution. Aspect cinétique en système fermé et comparaison système ouvert-système fermé dans le cas de l'albite, Bull. Sc. Française de Minéralogie 104, 25-35.
Mignard, E. and Bénet, J.-C.: 1986, Vérification expérimentale de la relation phénoménologique de dissolution d'un gaz dans l'eau d'un milieu poreux non saturé-Modèle de relation entre la phase gazeuse et la solution dans un sol non saturé, C.R. Acad. Sci., Paris 302(6), Série II b.
Ministère de l'Environnement: 1994, Recensement des sites et sols pollués, ed. Ministère de l'Environnement, Paris.
Philip, J. R. and De Vries, D. A.: 1957, Moisture movement in porous materials under temperature gradient, Trans. Am. Geophys. Un. 38, 222-232.
Quintard, M., Whitaker, S.: 1994, Transport in ordered and disordered porous media, II, generalized volume averaging, Transport in Porous Media 14(2), 179-206.
Radilla, G., Aigueperse, A., Bertin, H., Le Thiez, P. and Quintard, M.: 1997, Dispersion active en milieu poreux: expériences de laboratoire et interprétation, C.R. Acad. Sci., Paris 324, Série II b, 143-150.
Riddick, J. A., Bunger, W. B. and Sakano, T. K.: 1986, Organic solvents, physical properties and methods of purification, 4th edition, Vol. II, Wiley.
Rose, D.A.: 1963, Water movement in porous materials: Part 1-isothermal vapor transfer, Brit. J. Appl. Phys. 14, 256-262.
Ruiz, T.: 1998, Eléments de modélisation et contribution expérimentale í l'ètude du transport réactif dans un sol non satuér, PhD. Dissertation, Univ. of Montpellier II, France.
Ruiz, T. and Bénet, J.-C.: 1998, Analyse expérimentale du changement de phase d'un hydrocarbure volatil dans un sol, 16ème Congrès Mondial de Science du Sol, Montpellier, 6 pages, 20-26 Août 1998.
Saix, C., Devillers, Ph. and El Youssoufi, M. S.: 2000, Eléments de couplage thermomécanique dans la consolidation de sols non saturés, Can. Geotech. J. 37, 1-10.
Seidl, G.: 1966, Sur l'énergie de liaison de l'humidité liée dans les matériaux poreux et colloïdaux, Actes du Colloque international: Phénomènes de transport avec changement de phase dans les milieux poreux ou colloïdaux, ed. CNRS, Paris, 18-20 Avril.
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Ruiz, T., Benet, J.C. Phase Change in a Heterogeneous Medium: Comparison Between the Vaporisation of Water and Heptane in an Unsaturated Soil at Two Temperatures. Transport in Porous Media 44, 337–353 (2001). https://doi.org/10.1023/A:1010773928372
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DOI: https://doi.org/10.1023/A:1010773928372