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多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v2.i3.10
pages 205-229

Experimental and Numerical Analysis of Drying of Particles in Superheated Steam

Frederic Topin
Polytech Marseille, Laboratoire IUSTI, UMR CNRS 7343, Technopole de Chateau Gombert, 5 rue Enrico Fermi, 13453 Marseille Cedex 13, France
Omar Rahli
Laboratoire LTPMP, Fac GMGP, USTHB, 16111, Bab Ezzouar, Algiers, Algeria
Lounes Tadrist
Aix-Marseille Universite, CNRS, Laboratoire IUSTI, UMR 7343, Marseille 13453, France

ABSTRACT

This work focused on high-temperature convective drying (superheated steam drying). The process was investigated both experimentally and numerically. The experimental analysis was carried out in an aerodynamic return-flow wind tunnel with very small cylinders of cellular concrete. For local analysis the samples were fitted with thermocouples and pressure sensors. The mean moisture content of the cylinders was measured by simple weighing while the temperature and pressure readings were being taken. Global and local analyses of heat and mass transfer in small cylinders in superheated steam were carried out. The systematic study for several sizes and aerothermal conditions shows a similar behavior of all samples for moisture content, pressure, and temperature. A numerical model for high-temperature drying, using the finite elements method in a two-dimensional configuration, was implemented and validated.


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