| 摘要(英) |
In this paper, we use double reflective conic mirrors to design axial symmetry solar concentrator, that the primary mirror is paraboloidal and the second mirror is hyperboloidal or ellipsoidal. First, we use our program to find out the best concentration result of the past solar concentration technology, that the detector of the concentrator is at the outside of the primary mirror, under the allowable rang of concentrator tracing error. To compare the concentration result of the two best cases, we find the results of the two best cases are similar.
In order to increase the efficiency of solar cells, we design a lens collocating double reflective solar concentrator for the case without moving the detector. The objectives are dispersing the concentrated spots and reducing spot position deviations. The ideal in designing the lens are: first, using the first surface of the lens to uniform the outputting lights passing through double reflective solar concentrator, and then using the second surface of the lens to focus these lights on some different positions of the detector.
Then, we use the two elements, the aperture size of primary mirror and the detector position (they are not analyzed in the past solar concentration technology we referring), to analyze the concentration result. We find out concentration ratio increasing when the aperture size of the primary mirror increases. There is the best concentration result when the detector is placed between two mirrors. |
| 參考文獻 |
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