Question

At a time on the sunny day of July 21, the sun shining onto the wall and window at an incident angle of 30 while the incident angle onto a horizontal surface is measured at 45. Assume the window glass have the properties of τD = 0.7; τd = 0.6; αD = 0.1; αd = 0.3. The emissivity of the wall is 0.9. Calculate:

Total solar radiation absorbed by the wall;

Total solar radiation into the room via window;

Total solar radiation reflected away by the window glass

Answer 1

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