Initial situation:

• Use of metallic fans is only possible to a limited extent due to high temperature values in industrial furnaces.
• Due to the creep deformation, the speed of metallic fans must be reduced from temperatures> 500 ° C.
• The use of metallic fans is not possible above 1000 ° C.
• Reduction of the speed leads to a reduction of the circulating capacity in the furnace.

Working topics:

• Selection and design of a fan for industrial furnaces.
• Optimization of flow and voltage in the fan impeller using CFD and FEM.
• 3D pressure of the fan from a SiSiC ceramic.
• Hot tests of the ceramic ventilator at the 2 MW technical facility of the BFI at temperatures above 1000 ° C.

Results:

• Development and testing of a ceramic fan for use in industrial furnaces.
• Improvement of the convective heat transfer by increased circulation of the gas in industrial furnaces.