Darkness at Noon Essay Examples

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noon and positive in the afternoon. The surface-solar azimuth (γ) is found from the formula: γ=φ-ψThe azimuth angle (ψ) is the angle from south normal to the calculated surface in the horizontal plane. For the west side of the building, ψ = 90° and for the East side of the building, ψ = -90°. Finally, the solar incident angle (θ) is found from either of the following two formulas: cosθ=sinβ (surface tilt angle (Σ) = 0°) cosθ=cosβcosγ (Σ = 90°) The first equation is used to determine the solar incident angle when considering the roof, and the latter equation is used to determine the solar incident angle when considering the building walls. Solar Radiation The total solar...