Temperature control method and apparatus for an electric furnace

Details Temperature control method and apparatus for an electric furnace Temperature control method and apparatus for an electric furnace

1996-11-20

1998-04-14

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219497, 219425, 219505, 373154, 373148, H05B 102

Patent

active

057395055

ABSTRACT:
In an electric furnace including a heating device which includes a cooling water passage for cooling the heating device to prevent the heating device from melting, estimation of a molten metal temperature in the electric furnace using a heat equilibrium model is conducted taking into account a thermal loss by the cooling water, i.e., the amount of a heat taken away by the cooling water. Further, the amount of the cooling water flowing through the heating device is adjusted so that the thermal loss by the cooling water is in a predetermined optimum thermal loss range.

REFERENCES:
patent: 4133969 (1979-01-01), Zumbrunnen
patent: 4603730 (1986-08-01), Davis et al.

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