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Journal of Porous Media
Factor de Impacto: 1.49 Factor de Impacto de 5 años: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.2018018908
pages 877-886

THREE-DIMENSIONAL MODEL FOR HEAT AND MASS TRANSFER DURING CONVECTIVE DRYING OF WOOD WITH MICROWAVE HEATING

Aleksandar Dj. Dedic
Faculty of Forestry, University of Belgrade, 11030 Belgrade, Serbia
Srdjan V. Svrzic
Faculty of Forestry, University of Belgrade, 11030 Belgrade, Serbia
Jelena N. Janevski
Faculty of Mechanical Engineering, University of Nis, Serbia
Branislav Stojanovic
Faculty of Mechanical Engineering, University of Nis, Serbia
Milan Dj. Milenkovic
Geographical Institute "Jovan Cvijic", Serbian Academy of Sciences and Arts, Serbia

SINOPSIS

A three-dimensional model is proposed to describe the heat and mass transport process in the convective drying of wood with microwave heating. The model is based on the conservation of mass and energy and uses parameter values from the literature. Experimental results obtained for temperature profiles during the drying of wood samples are compared with model results. Satisfactory agreement is obtained over a range of drying air temperatures, moisture content, and velocities. It is concluded that higher microwave power results in larger exchange potentials, leading to the evaporation of water from wood. By increasing microwave power, the moisture within wood can absorb more energy and result in higher temperatures and evaporation rate.


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