商场冷凝水耦合光伏/光热系统的应用分析
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TK519

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山东省自然科学基金面上项目(ZR2020ME187);山东省高等学校科技计划项目(J16LG06);山东科技大学科研创新团队支持计划项目(2015KYTD104)


Application and Analysis on Condensate Water-cooled PV/T System in Shopping Mall
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    摘要:

    太阳能光伏光热(Solar photovoltaic-thermal, PV/T)技术将光伏和光热结合,可实现产电效率的提高和低品位热源的综合利用。基于商场空调冷凝水的实时回收量,本文建立了冷凝水水冷式PV/T系统,研究了该系统的性能和环境效益。在确定商场的空调冷凝水的逐时水量的基础上,将冷凝水水冷式PV/T系统与单一光伏(Photovoltaic, PV)系统的性能进行对比分析。结果表明,冷凝水水冷式PV/T系统通过收集制冷季商场内空调产生的大量冷凝水作为冷却介质,降低了光伏电池板的温度,典型日的光伏效率提升了17.78%,在整个制冷季,冷凝水水冷式PV/T系统较单一的PV系统净发电量增加了365.55 kW·h,具有6 938.27 kW·h的节能效益,可减排6.439 t二氧化碳。

    Abstract:

    Solar photovoltaic-thermal (PV/T) technology combines photovoltaic and photothermal to achieve the improvement of power generation efficiency and the recovery of low-grade heat sources. Based on the real-time recovery of condensate water from air conditioners in the shopping mall, a condensate water-cooled PV/T system model is established to study its system performance and environmental benefits. After the hourly volume of air-conditioning condensate water is accurately calculated in the shopping mall, the performance of the condensate water-cooled PV/T system and the single photovoltaic (PV) system are compared and analyzed. The results show that the condensate water-cooled PV/T system reduces the temperature of photovoltaic panels by collecting a large amount of condensate generated by the air conditioning in the mall during the cooling season as a cooling medium. The photovoltaic efficiency on a typical day is increased by 17.78%. During the entire cooling season, the condensate water-cooled PV/T system increases the net power generation by 365.55 kW.h than that of the single PV system, which produce the energy-saving benefit of 6 938.27 kW·h and can reduce carbon dioxide emissions by 6.439 tons.

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徐航,张长兴,路希正,等. 商场冷凝水耦合光伏/光热系统的应用分析[J]. 科学技术与工程, 2023, 23(2): 589-595.
Xu Hang, Zhang Changxing, Lu Xizheng, et al. Application and Analysis on Condensate Water-cooled PV/T System in Shopping Mall[J]. Science Technology and Engineering,2023,23(2):589-595.

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  • 收稿日期:2022-04-04
  • 最后修改日期:2022-10-15
  • 录用日期:2022-09-29
  • 在线发布日期: 2023-02-15
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