Pseudo-sunlight irradiation device for measuring heat collection efficiency of solar receiver and method for measuring heat collection efficiency using the same

摘要

A pseudo-sunlight irradiation device (10) having a pseudo-sunlight source (1) for emitting light, a concave mirror (2), an integrator lens (3), and a Fresnel lens (4). The concave mirror (2) point-focuses the light from the pseudo-sunlight source (1) toward the front. The integrator lens (3) is provided to the front of the pseudo-sunlight source (1), and scatters the light which was point-focused by the concave mirror (2) in a quadrangular-pyramid-shaped optical path. The Fresnel lens (4) line-focuses the light incident in the quadrangular-pyramid-shaped optical path from the integrator lens (3). The Fresnel lens (4) is equipped with a collimating lens (4a) for converting the light scattered in a quadrangular-pyramid shape from the integrator lens (3) into a parallel direction, and a cylindrical lens (4b) for line-focusing the light incident from the collimating lens (4a).