| 摘要 |
PURPOSE:To improve the heat collecting efficiency and durability of the subject collector by constructing the heat collecting material by carbon fibers. CONSTITUTION:Carbon fibers are formed into sheets using acrylic resin as a binder to constitute a heat collecting material of a web 3 having a thickness of about 20mm. by overlapping several sheets by the weight of 50-200g/m<2>. This heat collecting material is laid on the bottom surface of a vessel 1, and fixed by band-shaped pressing materials 9 intercrossing the fiber orientation. In this construction, water moving between a supply water hole 7 and a water exhaust hole 8 comes into contact with the surface of the carbon fiber having a wide area, the temperature of the carbon fiber elevates by solar heat which is collected by the carbon fiber. Thus, a heat collector of high durability and high heat collecting efficiency can be manufactured easily. |
