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Comparative optical performance investigation of Cross Compound Parabolic Concentrators designed with the elimination of multiple reflections principle.
- Source :
-
Solar Energy . Jul2023, Vol. 258, p253-269. 17p. - Publication Year :
- 2023
-
Abstract
- • Innovative design of concentrators with Multiple Reflections Elimination in Cross Compound Parabolic Concentrator. • Reduction in material consumption. • Enhanced solar flux uniformity. This paper evaluates low-profile solar concentrators with low-material consumption that improve the optical performance of Crossed-Compound-Parabolic-Concentrators (CCPCs) by using Eliminating-Multiple-Reflections (EMR). Three CCPC designs, LEMR, HEMR, and hybrid, were analysed using Monte-Carlo ray tracing, with optical efficiency and light flux uniformity as primary metrics. The LEMR and HEMR CCPCs achieved almost 88% average optical efficiency at the outlet aperture within the half acceptance angle. At the BCP, the LEMR CCPC attained an average efficiency of 85.7%, while the HEMR CCPC achieved an average efficiency of 85%. The hybrid CCPC achieved an average optical efficiency of 80% and 86% when the incidence angle was varied in the XY and YZ planes. The results showed that the non-uniformity of the light flux at the BCP remained low compared to the outlet aperture with changes in the incidence angle. A material consumption analysis revealed that the LEMR CCPC has the lowest material consumption as compared to the HMR and hybrid CCPCs and has a more uniform irradiance flux at the BCP. The LEMR CCPC has a relatively lower acceptance angle than the HEMR CCPC, making it suitable for a tracking system with a higher concentration ratio. The HEMR CCPC, on the other hand, can be used as a stationary concentrator due to its larger acceptance angle with a lower concentration ratio and can be applied in rooftops and building-integrated photovoltaics. Similarly, the hybrid CCPC has two different ranges of acceptance angles, making it advantageous for use in rooftops and building-integrated photovoltaics with seasonal tracking. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COMPOUND parabolic concentrators
*SOLAR concentrators
*RAY tracing
Subjects
Details
- Language :
- English
- ISSN :
- 0038092X
- Volume :
- 258
- Database :
- Academic Search Index
- Journal :
- Solar Energy
- Publication Type :
- Academic Journal
- Accession number :
- 163796526
- Full Text :
- https://doi.org/10.1016/j.solener.2023.04.064