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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
An Experimental and Numerical
Investigation of the Microwave Heating of Wood [PDF] |
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AUTHORS |
H. Zhao, 1998 33 2 121-133 |
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Abstract Research in wood heating and
drying over the past few years has focused on the potential application of
using microwave and radio-frequency energy in conjunction with conventional
drying operations. Unfortunately, due to the complexity of the problem it is
very difficult to investigate the evolution of the electromagnetic fields in
a general microwave heating applicator using either experimental or
analytical methods. In this paper, a previously developed mathematical model
based upon a finite-volume time-domain (FVTD) formulation has been extended
to enable the heating of an anisotropic material, such as wood, to be
simulated in an arbitrarily shaped applicator. This comprehensive
three-dimensional model will be validated against an extensive set of
experimental results and used subsequently to investigate numerous aspects of
the microwave heating of wood in a small scale industrial waveguide
applicator. The agreement between the experimental and numerical simulation
results highlights that the model can predict the microwave heating phenomena
for an anisotropic material very accurately. Key Words: Finite-volume,
Time-domain, Anisotropic, Porous medium, Multimodes
cavity |
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