Design and Construction of an Induction Furnace (Cooling System) Presented By Mg Thant Zin Win Roll No: Ph.D-M-7 2nd Seminar 16.6.2004
Review on 1st Seminar Classification of Furnace Basic Principle of Induction Heating Induction Furnace Coils and Water Piping System
Four Parts Divided in 2nd Seminar Objective Types of Cooling Water System Selection of System Conclusion
Objective To consider and select the suitable water cooling system among the various forms of water cooling plants for a coreless induction furnace
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
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.
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.
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.
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.
Selection of System Furnace size Furnace environment Local water Board regulation Nature of water supply available Local noise-control requirements-particularly at night Cost
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?
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