| 摘要 |
A solar power generation system comprises a Fresnel lens array 11, 12 to focus solar radiation onto a tubular member 14 at a focal point of the Fresnel lenses 11, 12. The outer lenses 12 are inclined at an angle to the central lens 11. The vertical angle of the lens array may be adjusted about an axis X, and the horizontal axis may be changed by rotating the array around a circular track. In use water is injected into the tubular member, which may have a rifled bore to increase the surface area, and / or an inner tube with injection holes (figure 5) so that water impinges on the heated surface of the tubular member in order to improve heat transfer to the water. |
