期刊
SOLAR ENERGY
卷 115, 期 -, 页码 694-707出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2015.03.032
关键词
Solar cell; Concentrator; Parabolic; Skew-ray tracing; Free-form
资金
- Ministry of Science and Technology of Taiwan [MOST 103-2221-E-150-010]
This study proposes a free-form (FF) surface creation (FFSC) method to optimize the profile of a FF solar concentrator such that each incident ray is directed to a user-specified point on the solar cell surface. The light ray paths within the concentrator system are analyzed using an exact analytical model and a skew-ray tracing approach. The effectiveness of the proposed method is demonstrated numerically by comparing the irradiance uniformity performance of five concentrator systems, namely a single FF reflector (single-FF), a standard parabolic reflector with a single FF reflector (SP + FF), a single-SP reflector (single-SP), a dual-SP reflector (dual-SP) and a SP + standard hyperbolic (SP + SH). The simulation results show that the concentrator systems containing FF reflectors achieve a significantly better irradiance uniformity than those based on conventional SP and SH reflectors. (C) 2015 Elsevier Ltd. All rights reserved.
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