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CFD analysis of roof tile coverings

Author

Listed:
  • Bottarelli, Michele
  • Bortoloni, Marco
  • Zannoni, Giovanni
  • Allen, Richard
  • Cherry, Nigel

Abstract

In hot climates tiled pitched roofs significantly reduce the heat transfer across the roof structure, due to the ventilated air layer between tiles and roofing underlay formed by the arrangement of battens and counter-battens supporting the tiles. This so-called Above Sheathing Ventilation (ASV) depends on the air entering and leaving at the eaves, ridge and the gaps between the tiles. With a view towards higher energy savings in space cooling, the natural and forced convection occurring in ASV could be enhanced by increasing the roof air permeability by means of novel tile shapes, as here analysed in two stages.

Suggested Citation

  • Bottarelli, Michele & Bortoloni, Marco & Zannoni, Giovanni & Allen, Richard & Cherry, Nigel, 2017. "CFD analysis of roof tile coverings," Energy, Elsevier, vol. 137(C), pages 391-398.
    • Handle: RePEc:eee:energy:v:137:y:2017:i:c:p:391-398
    DOI: 10.1016/j.energy.2017.03.081
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    References listed on IDEAS

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    1. Sandberg, Mats & Moshfegh, Bahram, 1998. "Ventilated-solar roof air flow and heat transfer investigation," Renewable Energy, Elsevier, vol. 15(1), pages 287-292.
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    Cited by:

    1. Wang, Haitao & Wei, Jiahua & Guo, Chengzhou & Yang, Liu & Wang, Zuyuan, 2024. "Numerical investigation of the effects of different influencing factors on thermal performance of naturally ventilated roof," Energy, Elsevier, vol. 289(C).
    2. Ascione, Fabrizio & De Masi, Rosa Francesca & Santamouris, Mattheos & Ruggiero, Silvia & Vanoli, Giuseppe Peter, 2018. "Experimental and numerical evaluations on the energy penalty of reflective roofs during the heating season for Mediterranean climate," Energy, Elsevier, vol. 144(C), pages 178-199.
    3. Michele Bottarelli & Marco Bortoloni & Giuseppe Dino, 2018. "Experimental analysis of an innovative tile covering for ventilated pitched roofs," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 13(1), pages 6-14.

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