| 摘要 |
PURPOSE: A solar collector is provided to improve the heat exchange efficiency of fluids circulating along fluid paths because a time for circulating along the fluid paths is relatively short to a time for passing through a body. CONSTITUTION: A solar collector comprises a body(10) to be extruded. The body comprises an outer wall, two or more fluid paths, and a protrusion. The outer wall comprises a closed internal space. The fluid paths are formed in one side of the internal space. The protrusion is protruded toward the other internal surface of the body. A plurality of fixing holes is formed toward the internal side of the protrusion from the outer wall at constant depth by drilling. |
