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Assessment of the cost reduction potential of a novel loop-heat-pipe solar photovoltaic/thermal system by employing the distributed parameter model

Author

Listed:
  • Ren, Xiao
  • Yu, Min
  • Zhao, Xudong
  • Li, Jing
  • Zheng, Siming
  • Chen, Fucheng
  • Wang, Zhangyuan
  • Zhou, Jinzhi
  • Pei, Gang
  • Ji, Jie

Abstract

A novel micro-channel loop-heat-pipe solar photovoltaic/thermal (LHP- PV/T) system is developed employing the co-axial tubular heat exchanger as the condenser and upper-end liquid header with tiny holes as the liquid feeder. The design facilitates an easier connection among the solar modules. It creates the improved condensation and separate evaporation effects within the LHP. A reduced evaporator area will thereby have a minor impact on the overall heat transfer performance, leading to significant potential for cost reduction. A distributed parameter model is established and validated by experimental data. The model is then applied to analyse the cost reduction potential of the LHP- PV/T via the optimization of geometrical and structural parameters. The impact of the area reduction on the LHP evaporator differs from that on the traditional integral heat pipe PV/T. The decrements in thermal and electrical efficiencies of the LHP- PV/T are 2.47% and 0.03% respectively when the width of heat pipes in the evaporator decreases from 26 to 10 mm. When the number of heat pipes decreases from 30 to 6, the decrements in thermal and electrical efficiencies are 4.63% and 0.12%, whilst the overall system cost drops by 28.58%, thus the cost-effectiveness of the system can be improved.

Suggested Citation

  • Ren, Xiao & Yu, Min & Zhao, Xudong & Li, Jing & Zheng, Siming & Chen, Fucheng & Wang, Zhangyuan & Zhou, Jinzhi & Pei, Gang & Ji, Jie, 2020. "Assessment of the cost reduction potential of a novel loop-heat-pipe solar photovoltaic/thermal system by employing the distributed parameter model," Energy, Elsevier, vol. 190(C).
    • Handle: RePEc:eee:energy:v:190:y:2020:i:c:s036054421932033x
    DOI: 10.1016/j.energy.2019.116338
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    References listed on IDEAS

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    4. Zhang, Tao & Zhang, Yufan & Shi, Zhengrong & Pei, Gang & Cai, Jingyong, 2022. "Preliminary investigation on the switching time of a photovoltaic solar-assisted heat-pump/heat-pipe hybrid system," Applied Energy, Elsevier, vol. 324(C).
    5. Ji, Yasheng & Zhou, Jinzhi & Yu, Min & Zhong, Wei & Yuan, Yanping, 2023. "A novel multi-function “Y-shape” heat pipe photovoltaic/thermal (PV/T) system: Experimental study on the performance of hot water supply and space heating," Renewable Energy, Elsevier, vol. 218(C).
    6. Yu, Qinghua & Chen, Xi & Yang, Hongxing, 2021. "Research progress on utilization of phase change materials in photovoltaic/thermal systems: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 149(C).
    7. Yu, Min & Chen, Fucheng & Zhou, Jinzhi & Yuan, Yanping & Fan, Yi & Li, Guiqiang & Zhao, Xudong & Wang, Zhangyuan & Li, Jing & Zheng, Siming, 2022. "Experimental investigation of a novel vertical loop-heat-pipe PV/T heat and power system under different height differences," Energy, Elsevier, vol. 254(PA).
    8. Wen, Xin & Ji, Jie & Song, Zhiying, 2021. "Performance comparison of two micro-channel heat pipe LFPV/T systems plus thermoelectric generators with and without aerogel glazing," Energy, Elsevier, vol. 229(C).
    9. Gao, Yuanzhi & Wu, Dongxu & Dai, Zhaofeng & Wang, Changling & Chen, Bo & Zhang, Xiaosong, 2023. "A comprehensive review of the current status, developments, and outlooks of heat pipe photovoltaic and photovoltaic/thermal systems," Renewable Energy, Elsevier, vol. 207(C), pages 539-574.
    10. Li, Rui & Li, Jinping & Zhu, Junjie & Liu, Xiaomin & Novakovic, Vojislav, 2023. "A numerical and experimental study on a novel micro heat pipe PV/T system," Energy, Elsevier, vol. 282(C).
    11. David González-Peña & Iván Alonso-deMiguel & Montserrat Díez-Mediavilla & Cristina Alonso-Tristán, 2020. "Experimental Analysis of a Novel PV/T Panel with PCM and Heat Pipes," Sustainability, MDPI, vol. 12(5), pages 1-15, February.

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