Journal of Microwave Power and Electromagnetic Energy (JMPEE)
TITLE	Modeling of the Radio Frequency Electric Field Strength Developed During the RF Assisted Heat Pump Drying of Particulates [PDF]
AUTHORS	M.G. Marshall and A.C. Metaxas 1998 33 3 167-177
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Abstract A new "boundary value" approach to model the radio frequency (rf) electric field strength during the rf assisted drying of particulate materials has been developed and validated with experimental data. Material dielectric data at varying moisture contents and elevated temperatures were measured in a novel co-axial test cell and used in the analysis. Experimental drying results are presented showing how the simultaneous application of rf heating complements heat pump drying, not only increasing drying rate, but also increasing the heat pump coefficient of performance. Key Words: Modeling, Drying, Particulate drying, Batch drying, Radio frequency drying, Heat pumps, Combination dryer, Dielectric properties, Electric field strength.