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Experimental study of a modified evaporative photovoltaic chimney including water sliding

Author

Listed:
  • Lucas, M.
  • Ruiz, J.
  • Aguilar, F.J.
  • Cutillas, C.G.
  • Kaiser, A.S.
  • Vicente, P.G.

Abstract

Solar cooling provides an ideal coupling between solar energy and the need for cooling, since both reach their maximum during the summer. However, solar refrigeration technologies either have not been competitive or are in a preliminary stage of development. Photovoltaic (PV) driven compression chillers are the most promising and close to market solar solutions today in the case of small to medium units (¡50 kW cooling) due to the tremendous decrease in the cost of PV modules. The main objective of this work is to improve the efficiency of a PV panel by cooling it on its upper face by water sliding and on its back side using a solar chimney. In addition, the system is used as heat sink of a water chiller working as a low scale cooling tower. The work developed consisted of adapting and testing a prototype, changing its mode of operation to overcome the limitations encountered in the first campaign of measures. Several tests were performed by modifying the water mass flow rate circulated to the nozzles (spray) and onto the PV upper surface (water film). For the test with a water flow rate in nozzles of 500 l/h and sliding 250 l/h the results show an average cooling of the panel of 15°C and an improvement in the electrical efficiency of the panel of about 10%. The modified system is still able to dissipate a thermal power of about 1500 W with a thermal efficiency exceeding 30% in summer conditions.

Suggested Citation

  • Lucas, M. & Ruiz, J. & Aguilar, F.J. & Cutillas, C.G. & Kaiser, A.S. & Vicente, P.G., 2019. "Experimental study of a modified evaporative photovoltaic chimney including water sliding," Renewable Energy, Elsevier, vol. 134(C), pages 161-168.
    • Handle: RePEc:eee:renene:v:134:y:2019:i:c:p:161-168
    DOI: 10.1016/j.renene.2018.11.008
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    References listed on IDEAS

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    1. Kaiser, A.S. & Zamora, B. & Mazón, R. & García, J.R. & Vera, F., 2014. "Experimental study of cooling BIPV modules by forced convection in the air channel," Applied Energy, Elsevier, vol. 135(C), pages 88-97.
    2. Lucas, M. & Aguilar, F.J. & Ruiz, J. & Cutillas, C.G. & Kaiser, A.S. & Vicente, P.G., 2017. "Photovoltaic Evaporative Chimney as a new alternative to enhance solar cooling," Renewable Energy, Elsevier, vol. 111(C), pages 26-37.
    3. Teo, H.G. & Lee, P.S. & Hawlader, M.N.A., 2012. "An active cooling system for photovoltaic modules," Applied Energy, Elsevier, vol. 90(1), pages 309-315.
    4. Mattei, M. & Notton, G. & Cristofari, C. & Muselli, M. & Poggi, P., 2006. "Calculation of the polycrystalline PV module temperature using a simple method of energy balance," Renewable Energy, Elsevier, vol. 31(4), pages 553-567.
    5. Bahaidarah, H. & Subhan, Abdul & Gandhidasan, P. & Rehman, S., 2013. "Performance evaluation of a PV (photovoltaic) module by back surface water cooling for hot climatic conditions," Energy, Elsevier, vol. 59(C), pages 445-453.
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    1. Pablo Casado & José M. Blanes & Francisco Javier Aguilar Valero & Cristian Torres & Manuel Lucas Miralles & Javier Ruiz Ramírez, 2021. "Photovoltaic Evaporative Chimney I–V Measurement System," Energies, MDPI, vol. 14(24), pages 1-14, December.
    2. Vinícius Silva & Julio Martinez & Raphael Heideier & Jonathas Bernal & André Gimenes & Miguel Udaeta & Marco Saidel, 2021. "A Long-Term Analysis of the Architecture and Operation of Water Film Cooling System for Commercial PV Modules," Energies, MDPI, vol. 14(6), pages 1-29, March.
    3. Zeyad A. Haidar & Jamel Orfi & Zakariya Kaneesamkandi, 2020. "Photovoltaic Panels Temperature Regulation Using Evaporative Cooling Principle: Detailed Theoretical and Real Operating Conditions Experimental Approaches," Energies, MDPI, vol. 14(1), pages 1-20, December.
    4. Ruiz, J. & Martínez, P. & Sadafi, H. & Aguilar, F.J. & Vicente, P.G. & Lucas, M., 2020. "Experimental characterization of a photovoltaic solar-driven cooling system based on an evaporative chimney," Renewable Energy, Elsevier, vol. 161(C), pages 43-54.
    5. Cengiz, Mazlum & Kayri, İsmail & Aydın, Hüseyin, 2024. "A collated overview on the evaporative cooling applications for photovoltaic modules," Renewable and Sustainable Energy Reviews, Elsevier, vol. 197(C).

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