Question: Radiation Processes Use the example shown in the notes, for a composite furnace wall - two insulation layers and a steel shell on the exterior.

Radiation Processes Use the example shown in the notes, for a

Radiation Processes Use the example shown in the notes, for a composite furnace wall - two insulation layers and a steel shell on the exterior. Interior temperature is 1000C, and air temperature of 25C. k11.1W/mKk20.038W/mKk360.5W/mKL10.05mL20.075mL30.003mT01000CT25Ch10W/m2Kr0.85As1m2 Heat conduction through a composite wall with convection and radiation. Consider the case where the exterior radiation surface has an emissivity of 0.2 (rather than 0.85) - what is the surface temperature (T3)? What is surface temperature if you ignore radiation? What if conductivity of L2 is set to 10W/mK ? What is T3 surface temperature when emissivity is 0.2 and 0.85 ? Please provide your initial guess of temperature T3, and then what you use for each subsequent iteration to allow for convergence - which is within 0.05C of input and output. (I do not need to see your spreadsheet/system for generating the numbers)

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