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Investigation of fluid flow and heat transfer in a vertical channel heated from one side by PV elements, part I - Numerical Study

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  • Moshfegh, B.
  • Sandberg, M.

Abstract

The impetus of this paper is to analyse numerically the fluid flow and heat transfer characteristics of buoyancy-driven convection between two vertical parallel walls, heated from one side. Both convection and radiation heat exchanges are considered as the heat transfer mechanisms by which the thermal energy is transferred into the air. A steady-state two-dimensional model is used for the analysis. Numerical results are derived for a channel of 6.5 m in height and different widths of the channel. Various heat fluxes are considered in order to show the effect of the input heat on the heat transfer across the air layer. Detailed studies of the flow and thermal fields in the air are presented in order to explore the thermal behavior of air in the channel. Velocity and temperature profiles of the outlet air and the surface temperature of the heated and insulated wall are presented. In Part II of this paper the findings from an experimental study are reported.

Suggested Citation

  • Moshfegh, B. & Sandberg, M., 1996. "Investigation of fluid flow and heat transfer in a vertical channel heated from one side by PV elements, part I - Numerical Study," Renewable Energy, Elsevier, vol. 8(1), pages 248-253.
    • Handle: RePEc:eee:renene:v:8:y:1996:i:1:p:248-253
    DOI: 10.1016/0960-1481(96)88856-2
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    Citations

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    Cited by:

    1. Shi, Long & Zhang, Guomin & Yang, Wei & Huang, Dongmei & Cheng, Xudong & Setunge, Sujeeva, 2018. "Determining the influencing factors on the performance of solar chimney in buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 88(C), pages 223-238.
    2. Sandberg, Mats & Moshfegh, Bahram, 1998. "Ventilated-solar roof air flow and heat transfer investigation," Renewable Energy, Elsevier, vol. 15(1), pages 287-292.
    3. Tonui, J.K. & Tripanagnostopoulos, Y., 2007. "Improved PV/T solar collectors with heat extraction by forced or natural air circulation," Renewable Energy, Elsevier, vol. 32(4), pages 623-637.
    4. Stazi, F. & Tomassoni, F. & Vegliò, A. & Di Perna, C., 2011. "Experimental evaluation of ventilated walls with an external clay cladding," Renewable Energy, Elsevier, vol. 36(12), pages 3373-3385.
    5. Mukherjee, S. & Shit, G.C., 2022. "Mathematical modeling of electrothermal couple stress nanofluid flow and entropy in a porous microchannel under injection process," Applied Mathematics and Computation, Elsevier, vol. 426(C).
    6. Zondag, H.A., 2008. "Flat-plate PV-Thermal collectors and systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(4), pages 891-959, May.
    7. Dawood, Norhan I. & Jalil, Jalal M. & Ahmed, Majida K., 2022. "Investigation of a novel window solar air collector with 7-moveable absorber plates," Energy, Elsevier, vol. 257(C).
    8. D'Orazio, M. & Di Perna, C. & Di Giuseppe, E., 2014. "Experimental operating cell temperature assessment of BIPV with different installation configurations on roofs under Mediterranean climate," Renewable Energy, Elsevier, vol. 68(C), pages 378-396.
    9. Kundakci Koyunbaba, Basak & Yilmaz, Zerrin, 2012. "The comparison of Trombe wall systems with single glass, double glass and PV panels," Renewable Energy, Elsevier, vol. 45(C), pages 111-118.
    10. Sengupta, Ayan & Mishra, Dipti Prasad & Sarangi, Shailesh Kumar, 2022. "Computational performance analysis of a solar chimney using surface modifications of the absorber plate," Renewable Energy, Elsevier, vol. 185(C), pages 1095-1109.
    11. Moshfegh, B. & Sandberg, M., 1998. "Flow and heat transfer in the air gap behind photovoltaic panels," Renewable and Sustainable Energy Reviews, Elsevier, vol. 2(3), pages 287-301, September.
    12. Zapałowicz, Zbigniew & Zeńczak, Wojciech, 2021. "The possibilities to improve ship's energy efficiency through the application of PV installation including cooled modules," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    13. Mohammed Elden & K. Sopian & Fatah Alghoul & Abdelnasser Abouhnik & Ae. M., 2013. "Solar Chimney Model Parameters to Enhance Cooling PV Panel Performance," Modern Applied Science, Canadian Center of Science and Education, vol. 7(2), pages 1-24, February.
    14. Han, Jun & Lu, Lin & Yang, Hongxing, 2010. "Numerical evaluation of the mixed convective heat transfer in a double-pane window integrated with see-through a-Si PV cells with low-e coatings," Applied Energy, Elsevier, vol. 87(11), pages 3431-3437, November.
    15. Zhang, Xingxing & Zhao, Xudong & Xu, Jihuan & Yu, Xiaotong, 2013. "Characterization of a solar photovoltaic/loop-heat-pipe heat pump water heating system," Applied Energy, Elsevier, vol. 102(C), pages 1229-1245.
    16. Ma, Tao & Yang, Hongxing & Zhang, Yinping & Lu, Lin & Wang, Xin, 2015. "Using phase change materials in photovoltaic systems for thermal regulation and electrical efficiency improvement: A review and outlook," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 1273-1284.

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