1. Design and Construction of an Induction Furnace (Cooling System)
Presented By
Mg Thant Zin Win
Roll No: Ph.D-M-7
2nd Seminar

2. Review on 1st Seminar Classification of Furnace
Basic Principle of Induction Heating
Induction Furnace Coils and Water Piping System

3. Four Parts Divided in 2nd Seminar
Objective
Types of Cooling Water System
Selection of System
Conclusion

4. Objective
To consider and select the suitable water cooling system among the various forms of water cooling plants for a coreless induction furnace

5. Types of Cooling Water System
Open-circuit system with evaporative cooling-tower
Fan-radiator (closed-circuit) system
Dual system with Water/Water heat exchanger
Dual system with closed-circuit cooling-tower

6. 1.Open-circuits System with Evaporative Cooling-tower
Advantages
Simplicity
Low capital cost
Disadvantages
Water is lost by evaporation.
Airborne dust and impurities are drawn into the tower.

7. 2.Fan-raditor (Closed-circuit) System
Advantages
Water circuit can be made completely enclose.
Loss of water is slight.
Disadvantages
Radiators are large for a given thermal duty.
Radiator fins are subject to blockage by atmospheric dust, and may be difficulty to clean.

8. 3.Dual System with Water/Water Heat Exchanger
Advantages
The water/water heat exchanger is more compact and easier to clean and maintain than the fan-radiator system.
Disadvantages
A primary source of cooling water is required.

9. 4.Dual System with Closed-circuit Cooling-tower
Advantages
Water/water heat exchanger is eliminated.
Piping and pumping costs are lower than in conventional tower with heat exchanger.
Disadvantages
Slightly more expansive than conventional tower with heat exchanger.

10. Selection of System Furnace size Furnace environment
Local water Board regulation
Nature of water supply available
Local noise-control requirements-particularly at night
Cost

11. Conclusion Open-circuit system with evaporative cooling-tower
Fan-radiator (closed-circuit) system
Dual system with Water/Water heat exchanger
Dual system with closed-circuit cooling-tower
What do you choose the water cooling system to construct a Coreless Induction Furnace?

12. THANK YOU