Microwave heating profiles and property-structure relationships in a family of alcohols

1996 ◽  
Vol 15 (19) ◽  
pp. 1730-1732 ◽  
Author(s):  
J. Palacios ◽  
F. D'La Mora ◽  
M. Rubio
Keyword(s):  
Microwave Heating ◽  
Heating Profiles

Preliminary Comparison of Microwave Heating of Complex-Shaped Composites Reinforced with Conductive and Nonconductive Fibers

1992 ◽  
Vol 269 ◽  
Author(s):  
Larry A. Fellows ◽  
Susannah Travis ◽  
Martin C. Hawley
Keyword(s):  
Microwave Heating ◽  
Fiber Composite ◽  
Single Frequency ◽  
Mode Switching ◽  
Graphite Fiber ◽  
Uniform Heating ◽  
Electromagnetic Mode ◽  
Complex Shapes ◽  
Microwave Applicator ◽  
Heating Profiles

ABSTRACTThe microwave heating of composites with complex shapes has been studied. A V-shaped mold was used to fabricate samples which do not lie parallel to the electric field produced in a 7-in. cylindrical microwave applicator operating at 2.45 GHz.A polyester/glass composite and a polyester/graphite fiber composite were produced for comparison. Heating profiles were made more uniform by applying mode-switching techniques to the processing. Mode-switching is the application of more than one electromagnetic mode to achieve uniform heating.The samples were tested for heating patterns in different geometric and fiber orientations within a single-frequency, cylindrical microwave applicator operating at 2.45 GHz. The temperature profile for each mode was recorded. Mode-switching provided better temperature profiles than single modes. Modeswitching techniques were more successful with the graphite fiber reinforcement.

Drying of moisture packed beds due to microwave heating using a rectangular waveguide

2002 ◽  
Author(s):  
Kazuo Aoki ◽  
Phadungsak Ratanadecho ◽  
Takashi Mikawa ◽  
Masatoshi Akahori
Keyword(s):  
Microwave Heating ◽  
Rectangular Waveguide ◽  
Packed Beds

Detection and characterisation of buried objects using infrared thermography enhanced by microwave heating

2002 ◽  
Author(s):  
Arnaud Jacotin ◽  
Elodie Bachelier ◽  
Francois Liousse ◽  
Pierre Millan
Keyword(s):  
Microwave Heating ◽  
Infrared Thermography ◽  
Buried Objects

Usefulness of Foundry Tooling Materials in Microwave Heating Process

2013 ◽  
Vol 58 (3) ◽  
pp. 919-922 ◽  
Author(s):  
K. Granat ◽  
B. Opyd ◽  
D. Nowak ◽  
M. Stachowicz ◽  
G. Jaworski
Keyword(s):  
Electromagnetic Field ◽  
Microwave Heating ◽  
Loss Factor ◽  
Perturbation Technique ◽  
Resonant Cavity ◽  
Precise Determination ◽  
Heating Process ◽  
Basic Criterion ◽  
Measurement Results ◽  
Heating Technology

Abstract The paper describes preliminary examinations on establishing usefulness criteria of foundry tooling materials in the microwave heating technology. Presented are measurement results of permittivity and loss tangent that determine behaviour of the materials in electromagnetic field. The measurements were carried-out in a waveguide resonant cavity that permits precise determination the above-mentioned parameters by perturbation technique. Examined were five different materials designed for use in foundry tooling. Determined was the loss factor that permits evaluating usefulness of materials in microwave heating technology. It was demonstrated that the selected plastics meet the basic criterion that is transparency for electromagnetic radiation.

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