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Yearly photoelectric/thermal and economic performance comparison between CPV and FPV dual-source heat pump systems in different regions

Author

Listed:
  • Song, Zhiying
  • Zhang, Yuzhe
  • Ji, Jie
  • He, Wei
  • Hu, Zhongting
  • Xuan, Qingdong

Abstract

Traditional flat PV heat pumps has low irradiation density, large PV area, and the PV evaporators are always fixed, causing large area occupation and lots of irradiation missing, which limit the application and system efficiency. To solve the problems, a novel concentrated PV-air dual-source heat pump system (CPV-DSHP) was proposed in the previous paper, but the annual performance and economic comparison with flat PV-DSHP (FPV-DSHP) are still blank, which are extremely concerning to researchers. Besides, the paper also fills related content about the impact of irradiation composition on the system performance and economics, as well as the irradiation comparison on tracking CPV and fixed FPV surface. From the calculation of the validated model, it's found that the CPV-DSHP system could capture 6098 MJ and 2213 MJ more solar energy, and produce 282.21 kWh and 100.16 kWh more electricity in Garze and Hefei in a year. The annual concentration efficiency is 82.73 % in Garze where direct irradiation accounts for 68.89 %, which is only 73.15 % in Hefei with 39.84 %.The COPPVT is annually lifted by 0.40 in Garze. Although the two systems could both get payback in 5∼6 years, the CPV-DSHP only shows economic advantages in places with good direct irradiation conditions like Garze.

Suggested Citation

  • Song, Zhiying & Zhang, Yuzhe & Ji, Jie & He, Wei & Hu, Zhongting & Xuan, Qingdong, 2024. "Yearly photoelectric/thermal and economic performance comparison between CPV and FPV dual-source heat pump systems in different regions," Energy, Elsevier, vol. 289(C).
    • Handle: RePEc:eee:energy:v:289:y:2024:i:c:s0360544223032759
    DOI: 10.1016/j.energy.2023.129881
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