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Experimental and numerical investigation on photovoltaic/thermal characteristics of an integrated PV/T-PCM system with metal fin and heat exchange pipe

Author

Listed:
  • Peng, Qi
  • Li, Daifeng
  • Sun, Xiaoqin
  • Li, Jie
  • Zhou, Yaping
  • Zeng, Liping

Abstract

In this work, a synthetical photovoltaic/thermal (PV/T) system incorporating phase change materials (PCMs), metal fin and heat exchange pipe was proposed. The influences of fluid flow velocity, PCMs thickness and heat exchange pipe position on the photovoltaic/thermal characteristics were investigated. The work demonstrated that the average photovoltaic conversion efficiency for the synthetical PV system (PV/T-PCM) respectively increased by 40.4 %, 9.8 %, and 10.1 %, compared with the traditionary PV, PV-PCM and PV/T systems. Meanwhile, the all-day output electric energy of PV/T-PCM system also enhanced by 205.85, 71 W·h and 50.2 W·h, respectively. Increasing water flow velocity from 0.02 m/s to 1 m/s led to a maximum increase of 1.91 % in the average photovoltaic conversion efficiency, 9.14 % in the average photothermal conversion efficiency and 2.12 % in the all-day output electric energy. The PV/T-PCM system owning 35 mm thick PCMs reached the highest average photovoltaic conversion efficiency of 11.26 %. The highest photothermal conversion efficiency of 70.7 % was reached in system with 45 mm thick PCMs. The average photovoltaic and photothermal conversion efficiencies for PV/T-PCM system respectively enhanced by 3.91 % and 11.08 % by optimizing the distance between heat exchange pipes and PV back plate.

Suggested Citation

  • Peng, Qi & Li, Daifeng & Sun, Xiaoqin & Li, Jie & Zhou, Yaping & Zeng, Liping, 2025. "Experimental and numerical investigation on photovoltaic/thermal characteristics of an integrated PV/T-PCM system with metal fin and heat exchange pipe," Renewable Energy, Elsevier, vol. 239(C).
    • Handle: RePEc:eee:renene:v:239:y:2025:i:c:s0960148124021815
    DOI: 10.1016/j.renene.2024.122113
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    References listed on IDEAS

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