Heat Transfer (Vetical Plane wall)

[Latios1314]

Hi Guys, can I get some advice on how do I get started on the question?

I'm guessing that natural convection is the key to solving the question. but i have no idea on how to solve it.

 

[Chestermiller]

Hi Guys, can I get some advice on how do I get started on the question?

I'm guessing that natural convection is the key to solving the question. but i have no idea on how to solve it.

My interpretation of the intent of this problem is to use pure conduction through the wall and insulation, and only radiative transfer on the outside, with no resistance on the inside.