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Thermal regulation impact of green walls: An experimental and numerical investigation

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  • Cuce, Erdem

Abstract

Green walls can be basically defined as climbing plants grown either directly against, or on support structures integrated to external building walls. Similar to other types of green infrastructure, they are in the centre of interest owing to their remarkable benefits such as reducing internal building temperatures, mitigating building energy consumption and facilitating urban adaptation to a warming climate. In this research, thermal regulation feature of green wall systems is experimentally and numerically investigated through a case study conducted in the Jubilee Campus of University of Nottingham. Internal wall temperatures are measured time-dependently for different cases and the results are compared with those of ordinary walls for a reliable and realistic approach. Different sky conditions are also considered within the scope of this research as an independent variable. Experimental results are verified by numerical models carried out in Ecotect. The results reveal that an average of 2.5°C reduction in internal wall temperature can be achieved via green walls with about 10cm thick climbing vegetation of Hedera helix, which is very promising.

Suggested Citation

  • Cuce, Erdem, 2017. "Thermal regulation impact of green walls: An experimental and numerical investigation," Applied Energy, Elsevier, vol. 194(C), pages 247-254.
    • Handle: RePEc:eee:appene:v:194:y:2017:i:c:p:247-254
    DOI: 10.1016/j.apenergy.2016.09.079
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    References listed on IDEAS

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    1. Pérez, Gabriel & Rincón, Lídia & Vila, Anna & González, Josep M. & Cabeza, Luisa F., 2011. "Green vertical systems for buildings as passive systems for energy savings," Applied Energy, Elsevier, vol. 88(12), pages 4854-4859.
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    4. Cuce, Erdem, 2016. "Toward multi-functional PV glazing technologies in low/zero carbon buildings: Heat insulation solar glass – Latest developments and future prospects," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 1286-1301.
    5. Cuce, Pinar Mert & Riffat, Saffa, 2016. "A state of the art review of evaporative cooling systems for building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 1240-1249.
    6. Cuce, Erdem & Cuce, Pinar Mert & Bali, Tulin, 2013. "An experimental analysis of illumination intensity and temperature dependency of photovoltaic cell parameters," Applied Energy, Elsevier, vol. 111(C), pages 374-382.
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    8. Saffa B. Riffat & Erdem Cuce, 2011. "A review on hybrid photovoltaic/thermal collectors and systems," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 6(3), pages 212-241, June.
    9. Raji, Babak & Tenpierik, Martin J. & van den Dobbelsteen, Andy, 2015. "The impact of greening systems on building energy performance: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 610-623.
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