Angle of Incidence in Radiation Formulas

Angle of Incidence is the angle which an incident line or ray makes with a perpendicular to the surface at the point of incidence. And is denoted by i. Angle of Incidence is usually measured using the Degree for Angle. Note that the value of Angle of Incidence is always negative.

Radiation formulas that make use of Angle of Incidence

fxTotal solar energy incident on unit area of horizontal surface on groundGo

fxDiffuse solar radiation given total solar energy and direct radiationGo

FAQ

What is the Angle of Incidence?

Angle of Incidence is the angle which an incident line or ray makes with a perpendicular to the surface at the point of incidence. Angle of Incidence is usually measured using the Degree for Angle. Note that the value of Angle of Incidence is always negative.

Can the Angle of Incidence be negative?

Yes, the Angle of Incidence, measured in Angle can be negative.

What unit is used to measure Angle of Incidence?

Angle of Incidence is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Angle of Incidence can be measured.

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