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A novel concentrating inverted bifacial photovoltaic system

Author

Listed:
  • Xiao, Lan
  • Wu, Meng-Ting
  • Wu, Shuang-Ying
  • Xu, Shi-Jie
  • Chen, Zhi-Li

Abstract

To enhance the solar irradiation on the front and rear sides and the flux distribution uniformity of bifacial photovoltaic panel, a novel asymmetric compound parabolic concentrating inverted bifacial photovoltaic (ASCPC-IBPV) system was proposed. The optical-thermal-electrical coupling model for numerical simulation was established to study the optical, electrical and tech-economic performance at different light incident angles. Also, the compound parabolic concentrating triangular mono-facial photovoltaic and compound parabolic concentrating vertical bifacial photovoltaic systems were introduced and compared with ASCPC-IBPV system. The results show that the average solar irradiation flux distribution uniformity and overall electrical efficiency of ASCPC-IBPV system are improved in the same light acceptance range of concentrator. Considering the concentrator consumables and land occupied area, from the viewpoints of average solar irradiation per unit concentrator area, average electrical power per unit concentrator area and average electrical power per unit land area, ASCPC-IBPV system has better tech-economic performance. To further improve the performance, an air cooling channel located on the rear side of bifacial photovoltaic panel was added to form asymmetric compound parabolic concentrating inverted bifacial photovoltaic/thermal (ASCPC-IBPV/T) system. The results show that when the number of partitions in cooling channel is 4 and inlet mass flow rate of cooling air is 0.11 kg/s, electrical power and electrical efficiency of ASCPC-IBPV/T system reach up to 377.52 W and 10.74 %, which are absolutely increased by 57.91 W and 1.65 % compared with those of ASCPC-IBPV system, respectively.

Suggested Citation

  • Xiao, Lan & Wu, Meng-Ting & Wu, Shuang-Ying & Xu, Shi-Jie & Chen, Zhi-Li, 2025. "A novel concentrating inverted bifacial photovoltaic system," Energy, Elsevier, vol. 326(C).
    • Handle: RePEc:eee:energy:v:326:y:2025:i:c:s0360544225020250
    DOI: 10.1016/j.energy.2025.136383
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