Increased energy efficiency in MF induction melting furnaces by optimized operation
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00541_2016_01_03
The introduction of static frequency converters in the 1980’s caused a new impetus to inductive melting. Medium-frequency crucible furnaces have since become established as standard melting systems, particularly in iron foundries [1]. The higher, adaptable frequency of the coil current enables crucible furnaces fed by converters to be operated in batch type mode at a much higher power density and without any loss of melting performance, even if the furnace is emptied completely each time. Apart from economic gains and technical process benefits, a particular advantage is that energy efficiency can be increased compared to crucible furnaces operated at line frequency. After a brief characterization of medium-frequency inductive melting technology, this paper goes on to describe how this increase can be optimized by means of action concerning operation processes and the system itself.
Authors | Erwin Dötsch / Robert Ibach / Marco Rische / Moritz Spichartz |
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Publishing Date | 1 Jan 2016 |
Format | |
Zeitschrift | heat processing - Ausgabe 01 2016 |
Publisher | Vulkan-Verlag GmbH |
Language | English |
Title | Increased energy efficiency in MF induction melting furnaces by optimized operation |
Description | The introduction of static frequency converters in the 1980’s caused a new impetus to inductive melting. Medium-frequency crucible furnaces have since become established as standard melting systems, particularly in iron foundries [1]. The higher, adaptable frequency of the coil current enables crucible furnaces fed by converters to be operated in batch type mode at a much higher power density and without any loss of melting performance, even if the furnace is emptied completely each time. Apart from economic gains and technical process benefits, a particular advantage is that energy efficiency can be increased compared to crucible furnaces operated at line frequency. After a brief characterization of medium-frequency inductive melting technology, this paper goes on to describe how this increase can be optimized by means of action concerning operation processes and the system itself. |
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