Table 1 Comparison of electrode structure used in simulations and experiments.

From: Enhancement of electric field uniformity using 3-phase circular electrodes in RF heating applications

 

Proposed 3-phase electrodes

Conventional electrodes

Geometry

Circular

Rectangular

Area

(π × 302) + (π × (1032 − 362)) + (π × (157.52–1182)) mm2 (= 66,287.8 mm2)

303 × 200 mm2 (= 60,600 mm2)

Height between top and bottom electrode

100 mm

100 mm

Phase of input voltage

3-phase (innermost 45°, middle 90°, outermost 0°)

0° of single-phase

Controllability

Amplitude & phase

Amplitude

Min & Max E-field strength IR value

Min: 1.0

Max: 1.09

Min: 1.0

Max: 1.33

EDUI

91.89%

75.31%