Angle of Incidence

Angle of Incidence
  In reference to solar energy systems, the angle at which direct sunlight strikes a surface; the angle between the direction of the sun and the perpindicular to the surface. Sunlight with an incident angle of 90 degrees tends to be absorbed, while lower angles tend to be reflected.
  ***
  The angle that the sun's rays make with a line perpendicular to a surface. The angle of incidence determines the percentage of direct sunshine intercepted by a surface.
  California Energy Comission. Dictionary of Energy Terms
  ***
  Angle between the normal to a surface and the direction of incident radiation; applies to the aperture plane of a solar collector. Most modern solar panels have only minor reductions in power output within plus/minus 15 degrees.
  Solar Electric Glossary

Energy terms . 2014.

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  • Angle of incidence — is a measure of deviation of something from straight on , for example: in the approach of a ray to a surface, or the angle at which the wing or horizontal tail of an airplane is installed on the fuselage, measured relative to the axis of the… …   Wikipedia

  • Angle of incidence — Incidence In ci*dence, n. [Cf. F. incidence.] [1913 Webster] 1. A falling on or upon; an incident; an event; an occurrence. [Obs.] Bp. Hall. [1913 Webster] 2. (Physics) The direction in which a body, or a ray of light or heat, falls on any… …   The Collaborative International Dictionary of English

  • Angle D'incidence — Incidence (optique) Pour les articles homonymes, voir incidence. Θ est l angle d incidence L angle d incidence est l angle entre la d …   Wikipédia en Français

  • Angle of incidence — (A[ e]ronautics) The angle between the chord of an a[ e]rocurve and the relative direction of the undisturbed air current. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • angle of incidence — n the angle that a line (as a ray of light) falling on a surface or interface makes with the normal drawn at the point of incidence * * * the angle made with the perpendicular by a ray of light which strikes a denser or a rarer medium; see… …   Medical dictionary

  • angle of incidence — n. 1. the angle that a light ray or electromagnetic wave striking a surface makes with a line perpendicular to the reflecting surface 2. Chiefly Brit. ANGLE OF ATTACK 3. Aeron. a permanent angle between the chord of an airfoil and the… …   English World dictionary

  • Angle d'incidence — ● Angle d incidence angle formé par la corde d un profil d aile et l axe longitudinal de l avion …   Encyclopédie Universelle

  • angle of incidence — i. The acute angle formed between the chord line of an airfoil and the longitudinal axis of the aircraft on which it is mounted. This is the angle at which the airfoil is attached to an aircraft fuselage when the aircraft is in rigging position.… …   Aviation dictionary

  • angle of incidence —    The angle of incidence as used here conforms to that used in optics to describe reflection and refraction of light rays. The angle is measured with respect to the normal to the surface, rather than to the surface itself. The normal is an… …   Forensic science glossary

  • angle d’incidence — kritimo kampas statusas T sritis fizika atitikmenys: angl. incidence angle vok. Einfallswinkel, m; Einfallwinkel, m rus. угол падения, m pranc. angle d’incidence, m …   Fizikos terminų žodynas

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