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The energy consumption performance of roof lawn gardens in Thailand

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  • Permpituck, Sittipong
  • Namprakai, Pichai

Abstract

Statistics have confirmed that a lawn placed on a roof top can reduce the cooling load. In this study, the VISUAL DOE 4.0 energy simulation program was used to determine the effects of roof lawn gardens (RLG) on the annual energy required for cooling, and annual electrical usage in an experimental model. The overall heat transfer coefficient (U-Value) of the RLG was estimated by using data from site measurements and the effect of the RLG on the building’s energy consumption was calculated by the simulation program. The effect of different thicknesses of soil was also investigated. From the field measurements, it was confirmed that the RLG could reduce building heat gain. Thus, an experiment was set up to find the energy benefits of the RLG. With evaporative cooling by the RLG, it was found that the consumption of energy in a building with a RLG with 0.20 m of soil was 37.11% less than in a building with a bare roof surface (without evaporative cooling). Moreover, a building with 0.10 m of soil in the RLG consumed 31.07% less energy than a building with a bare roof surface. The results show that an increase in the thickness of the soil layer reduces the building energy consumption.

Suggested Citation

  • Permpituck, Sittipong & Namprakai, Pichai, 2012. "The energy consumption performance of roof lawn gardens in Thailand," Renewable Energy, Elsevier, vol. 40(1), pages 98-103.
    • Handle: RePEc:eee:renene:v:40:y:2012:i:1:p:98-103
    DOI: 10.1016/j.renene.2011.09.023
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    Citations

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    Cited by:

    1. Goudarzi, Hossein & Mostafaeipour, Ali, 2017. "Energy saving evaluation of passive systems for residential buildings in hot and dry regions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 68(P1), pages 432-446.
    2. Hanny Chandra Pratama & Theerawat Sinsiri & Aphai Chapirom, 2023. "Green Roof Development in ASEAN Countries: The Challenges and Perspectives," Sustainability, MDPI, vol. 15(9), pages 1-26, May.
    3. Fernando Alonso-Marroquin & Ghulam Qadir, 2023. "Synergy between Photovoltaic Panels and Green Roofs," Energies, MDPI, vol. 16(13), pages 1-17, July.
    4. Azis, Shazmin Shareena Ab., 2021. "Improving present-day energy savings among green building sector in Malaysia using benefit transfer approach: Cooling and lighting loads," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    5. He, Q. & Tapia, F. & Reith, A., 2023. "Quantifying the influence of nature-based solutions on building cooling and heating energy demand: A climate specific review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 186(C).
    6. Noemi Caltabellotta & Felicia Cavaleri & Carlo Greco & Kestutis Navickas & Carlo Scibetta & Laura Giammanco, 2019. "Integration of green roofs&walls in urban areas," RIVISTA DI STUDI SULLA SOSTENIBILITA', FrancoAngeli Editore, vol. 0(2 Suppl.), pages 61-78.
    7. Shazmin, S.A.A. & Sipan, I. & Sapri, M. & Ali, H.M. & Raji, F., 2017. "Property tax assessment incentive for green building: Energy saving based-model," Energy, Elsevier, vol. 122(C), pages 329-339.
    8. 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.
    9. Dong, Xin & He, Bao-Jie, 2023. "A standardized assessment framework for green roof decarbonization: A review of embodied carbon, carbon sequestration, bioenergy supply, and operational carbon scenarios," Renewable and Sustainable Energy Reviews, Elsevier, vol. 182(C).

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