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Resistance Heating Technologies

Teacher Hans De Keulenaer, Sergio Lupi

Description

Resistance heating deals with the heating of conducting materials, metallic or nonmetallic, in which an electrical current (DC or AC) flows.

In Direct Resistance Heating (DRH) the electrical current flows directly in the conducting workpiece to be heated; in Indirect Resistance Heating (IRH) the current flows in special resistance elements, from which the heat is transferred to the work-piece by radiation and convection. Resistace elements and workpiece are situated in a furnace.

Both heating systems must be conveniently designed in order to maximize efficiency and obtaining the desired heating pattern in the workpiece.

In the course the following topics will be dealt with:

  • DRH with DC supply
  • DRH with AC supply
  • Characteristics of DRH bar heating installations
  • IRH resistance furnaces
  • Materials and design of IRH furnaces
  • DRH and IRH heating systems efficiency

Duration (hours)

1