- Heat Transfer - Section 1
- Heat Transfer - Section 2
- Heat Transfer - Section 3
- Heat Transfer - Section 4
- Heat Transfer - Section 5
- Heat Transfer - Section 6
- Heat Transfer - Section 7
- Heat Transfer - Section 8
- Heat Transfer - Section 9
- Heat Transfer - Section 10
- Heat Transfer - Section 11


Heat Transfer - Engineering
Q1: The radiation heat flux from a heating element at a temperature of 800°C, in a furnace maintained at 300°C is 8 kW/m2. The flux, when the element temperature is increased to 1000°C for the same furnace temperature isA 11.2 kW/m2
B 12.0 kW/m2
C 14.6 kW/m2
D 16.5 kW/m2
ANS:D - 16.5 kW/m2 To find the radiation heat flux when the temperature of the heating element is increased from 800°C to 1000°C while maintaining the furnace temperature at 300°C, we can use the Stefan-Boltzmann law, which states: (element4−furnace4)AQ=εσ(Telement4−Tfurnace4) Where:
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