Application to an industrial furnace

• Industrial furnace
  • used for hardening, annealing and tempering
  • complex internal operation
  • needs a lot of energy
• Material flow
  • parts are collected at entrance
  • complete batches of fixed size enter the oven
  • ready → a complete batch leaves the oven
• Process control
  • five phases (optionally six)
  • behaviour defined by stategraph
• Process physics
  • focus on energy consumption → modeling of heat flows
  • only energy source: power supply of the heater
  • heater → load: convection + radiation
  • heater → environment: conduction (always)
  • heater → environment: convection + radiation (during load/unload)