| 摘要 |
PROBLEM TO BE SOLVED: To provide a trough-type reflector capable of keeping the manufacturing cost low, and a concentrating trough-type solar power generation device having a durability even against the wind or a trough-type reflector capable of being suitably used for the concentrating trough-type solar power generation device.SOLUTION: The present invention is a concentrating trough-type solar power generation device for performing a power generation by concentrating a solar light on a relief surface side of a reflection plate, or a trough-type reflector used for the concentrating trough-type solar power generation device. The trough-type reflector includes at least a trough-type reflection plate having a shape of which the cross-section is parabolic; and a transparent cover of which the cross-section is parabolic provided so as to cover a relief surface side of the reflection plate. When a distance up to the focal position from a bottom having the shape of which the cross-section is parabolic of the reflection plate is defined as T1, a distance in a width direction of the shape of which the cross-section is parabolic of the reflection plate is defined as d1, the distance up to the focal position from the bottom having the shape of which the cross-section is parabolic of the reflection plate is defined as T2, and the distance up to the width direction having the shape of which the cross-section is parabolic of the transparent cover is defined as d2, the relationship of T2/d2<T1/d1 is satisfied.SELECTED DRAWING: Figure 1 |
