b) The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal conductivity of the wall material is 0.1 W/m K and the insulation material is 0.01 W/m K. The furnace operates at 650 °C and the ambient temperature is 30 °C. Allowable temperature on the outer side of the insulation is 100°C. Determine the overall heat transfer by conduction per unit area occurring across a furnace wall made from clay. If the air side heat transfer coefficient is 0.4 W/m² K, calculate the minimum insulation thickness requirement.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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b) The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal
conductivity of the wall material is 0.1 W/m K and the insulation material is 0.01 W/m K.
The furnace operates at 650 °C and the ambient temperature is 30 °C. Allowable
temperature on the outer side of the insulation is 100°C. Determine the overall heat
transfer by conduction per unit area occurring across a furnace wall made from clay.
If the air side heat transfer coefficient is 0.4 W/m² K, calculate the minimum insulation
thickness requirement.
pine of 100 mm here, and 10 mm bore thickness, carrying dry saturated steam at 28
Transcribed Image Text:b) The wall of the furnace is 30.48 mm thick and is insulated from outside. Thermal conductivity of the wall material is 0.1 W/m K and the insulation material is 0.01 W/m K. The furnace operates at 650 °C and the ambient temperature is 30 °C. Allowable temperature on the outer side of the insulation is 100°C. Determine the overall heat transfer by conduction per unit area occurring across a furnace wall made from clay. If the air side heat transfer coefficient is 0.4 W/m² K, calculate the minimum insulation thickness requirement. pine of 100 mm here, and 10 mm bore thickness, carrying dry saturated steam at 28
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