The sky temperature seems to be a great discussion subject. Atmospheric resistances and reflections may be the reason why -273C can not be used. I would be curious to hear what values on the sky temperature has been shown to give reliable results (assume clear sky, and cloudy respectively)?
Does anyone have the equations for the "chimney effect"? I am trying to solve, with equations, the heat loss through natural convection, where the different air temperatures create a boyancy effect driving the air through vents in a box.
More specifically, I am considering a electronic outdoor...
