Abstract
Concentration ratio and irradiance uniformity are the most two significant attributes for evaluating a Concentrator Photovoltaic (CPV) system. In this paper, the mathematical model of symmetrical Two-stage reflected concentrator is established. The effect of tilt angles of primary off-axis concentrator and secondary flat mirror on the concentration ratio and irradiance uniformity is analyzed based on geometrical optics. So that the predominant parameter combinations are obtained. The transmission of concentrated solar power is simulated by Monte-Carlo ray tracing method (MCRT). And the flux distribution of receiving region is also analysed. The results show that the symmetrical Two-stage reflected concentrator has the characteristic of irradiance uniformity and proper concentration ratio when the tilt angles of primary off-axis concentrator and secondary flat mirror and the height of receiving region fit well. This is suitable for the CPV system in space.
| Original language | English |
|---|---|
| Pages (from-to) | 1288-1294 |
| Number of pages | 7 |
| Journal | Yuhang Xuebao/Journal of Astronautics |
| Volume | 34 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2013 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Concentration ratio
- Monte Carlo method
- Space solar power
- Symmetrical Two-stage reflected concentrator
- Uniformity
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