| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar heat receiver and a heat collection facility which can suppress a thermal stress due to a temperature difference between a light receiving part and a non-light receiving part, thereby improving durability.SOLUTION: The solar heat receiver includes a casing body 11 which has an opening part 15 where sunlight WL is input and a plurality of heat receiving pipes 30 which are provided separately from a heat insulation material 16 on an inner periphery of the casing body 11 to circulate a compressed air inside and which have space therebetween. The plurality of heat receiving pipes 30 have protrusions 31 which are provided on a non-light receiving surface 30a facing an inner surface 16a of the heat insulation material 16 on an outer periphery and which project toward the inner surface 16a of the heat insulation material 16, wherein the surface area of the non-light receiving surface 30a becomes larger than the surface area of the light receiving surface 30b positioned on the opposite side of the non-light receiving surface 30a. |
