SOLAR CONCENTRATING MIRROR, AND TROUGH SOLAR THERMAL POWER GENERATION DEVICE AND TROUGH SOLAR POWER GENERATION DEVICE USING SAME

摘要

Disclosed is a solar concentrating mirror that has excellent antifouling properties, facilitates partial replacement, and can maintain high reflectivity at a low cost. Also disclosed are a trough solar thermal power generation device and a trough solar power generation device that are equipped with said solar concentrating mirror. The solar concentrating mirror has an elongated shape in which a cross section parallel to the lengthwise direction has a linear shape and a cross section perpendicular to the lengthwise direction has a macroscopically curved shape, and is characterized by being formed from a plurality of discrete elongated film mirrors divided in a direction perpendicular to the lengthwise direction of said solar concentrating mirror.