http://fluxtrol.com Advantages of Induction Heating Magnetic Flux Control in Induction Coils Computer Simulation Case Study Materials for Magnetic Flux Control Examples of Power InductorsTM

1. Enhancing Induction Heating Processes
by Applying Magnetic Flux Controllers
Robert S. Ruffini, Robert T. Ruffini
Fluxtrol Manufacturing, Inc.
Valentin S. Nemkov, Robert C. Goldstein
Centre for Induction Technology, Inc.

2. Overview
• Advantages of Induction Heating
• Magnetic Flux Control in Induction Coils
• Computer Simulation Case Study
• Materials for Magnetic Flux Control
• Examples of Power InductorsTM

3. Static Heating System
Tube size:
15 mm X 15 mm
100 mm
Steel Block
310 mm

4. Half of Geometry Used for
Simulation
Concentrator
Copper Coil
Steel Block
Copper Coil
Steel Block

5. Final Field Lines for
Temperature Control Case

6. Final Temperature Distribution
for Temperature Control Case

7. Austenitized Zones for
Temperature Control Case

8. Final Temperature Distribution
for Energy Savings Case

9. Austenitized Zones for Energy
Savings Case

10. Breakdown of Energy Savings
Bare Coil
Co il Head B us Wo rk Transfo rmer Inverter Overall
Coil Current 10100 10100 10100 10100
Coil Voltage 25.4 16.5 42
Coil Power 13.7 18 19 51
Steel Power 71.1 71
Total Power 84.8 18 19 8 130
El. Efficiency 83.8 55
kVA's 257 167 0 423
Power Coil
Coil Head Bus Work Transformer Inverter Overall
Coil Current 4100 4100 4100 4100
Coil Voltage 26.6 6.6 33
Coil Power 7 3 3 13
Steel Power 49.6 50
Total Power 56.6 3 3 4 67
El. Efficiency 87.7 75
kVA's 109 27 136

11. Conclusions
• When Properly Applied, Magnetic Flux
Controllers are Always Beneficial
• Computer Simulation Demonstrated that in Oval
Coils Controllers Provide Energy Savings up to
50%
• Due to Inherent Advantages of MDM’s their
Application for Magnetic Flux Control in
Induction Systems Continues to Grow