A vertical window of height 2 m and width 1.5 m faces southeast. It is set back 0.3 m from the outer surface of a wall. The northern latitude of the location is 35°. Calculate the following quantities...

A vertical window of height 2 m and width 1.5 m faces southeast. It is set back 0.3 m from the outer surface of a wall. The northern latitude of the location is 35°. Calculate the following quantities at solar noon on February 10 when the direct beam intensity is 480 Wmí2 : (i) the angle of incidence of the direct solar beam on the window, (ii) the unshaded fraction of the window, and (iii) the total direct beam solar radiation falling on the window.