| 摘要 |
PURPOSE:To decrease a reflection loss and a convection loss for an improvement of a heat absorption efficiency by making a part of a light receiving face recessed. CONSTITUTION:A light receiving face 12 is formed on the tip of a cylindrical supporting column 11 made of a heat insulating material so that sunlight a reflected by many reflectors can be collected there. Recesses 13 are formed at regular intervals on a circumference of the light receiving face, each of the recesses 13 is provided with a super heat panel 14 constituted by multiple tubes respectively, and each of protrusions located between the recesses 13 is provided with a boiler panel 15 constituted by multiple tubes respectively. A side wall of the concave 13 is provided with the bioler panel 15 or a fin and is separated from the heat panel 14. |
