SOLAR RAY HEAT CONVERSION DEVICE AND SOLAR HEAT POWER GENERATING SYSTEM USING SAME

摘要

A solar-to-heat conversion apparatus 20 has a polyhedral lens unit 21 which is comprised of a bottom surface member 27 and a top surface lens 22 and side surface lenses 23 to 26 formed as square Fresnel lenses of an acrylic resin and is formed in a regular hexahedral shape, and a light-receiving heating unit 30 which has a cross section in a reverse T shape formed by a bottom member 32 and an upright member 42 placed in the middle of the bottom surface member 27 inside the polyhedral lens unit 21. Without requiring a mechanism driven to follow the direction of the sun, the small-size and simple configuration enables the solar light and its reflected light to be concentrated with high efficiency from the sunrise to the sunset and generate heat.