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3D dynamic simulation of heat transfer and melt flow in an inductively heated crystallization furnace for mc-silicon with PID temperature control

3D dynamic simulation of heat transfer and melt flow in an inductively heated crystallization furnace for mc-silicon with PID temperature control

Category
Journal publication
Abstract
A heat transfer model of a semi-industrial induction furnace has been build, using a 3D finite element model in order to analyze the entire process cycle, based on the heating, melting, solidification and cooling phases of a multi-crystalline square ingot. In the modeling of the entire process, heat transfer phenomena such as radiation and conduction in the furnace have been taken into account. A PID (Proportional Integral Differential) control algorithm has been implemented into the model for adjusting the power input in the heaters, so that the heater temperature is kept at prescribed time-varying values. The furnace model and the PID control algorithm are validated by temperature measurements from a crystallization experiment. Subsequently the validated model was used to investigate the melt flow field and its impact on the solid–liquid interface shape.
Language
English
Author(s)
Affiliation
  • SINTEF Industry / Sustainable Energy Technology
  • Institute for Energy Technology
  • SINTEF Industry / Metal Production and Processing
Year
2013
Published in
Journal of Crystal Growth
ISSN
0022-0248
Volume
383
Page(s)
119 - 125