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Homework Help: Heat Transfer from metal wall

  1. Nov 9, 2006 #1
    A light breeze of 10mi/hr blows across a metal building. The buildings wall is 3.7m tall and 6.1m wide. A net energy flux of 347w/m^2 from the sun is absorbed by the wall and then disipated to the air through convection. Assuming the air is 27c and 1 atm and blows across the wall as a flat plate, estimate the average temp the wall will atain at equlibrium.

    I took the flux and divided it by the area to get the heat transfer. I was thinking that i need to work backwards through the Nussalt number to find h, then I can solve from the convection eqn but I have a sheet with a bunch of Nussalt equations that all depend on the Renolds number for this situation, but that depends on the temp of the wall? Where do I begin?

    Thanks in advance for any feedback.
  2. jcsd
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