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Reducing Simulation Performance Gap in Hemp-Lime Buildings Using Fourier Filtering †

Author

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  • Ljubomir Jankovic

    (Zero Carbon Lab, Birmingham City University, Birmingham B5 5JU, UK)

Abstract

Mainstream dynamic simulation tools used by designers do not have a built-in capability to accurately simulate the effect of hemp-lime on building temperature and relative humidity. Due to the specific structure of hemp-lime, heat travels via a maze of solid branches whilst the capillary tubes absorb and release moisture. The resultant heat and moisture transfer cannot be fully represented in mainstream simulation tools, causing a significant performance gap between the simulation and the actual performance. The author has developed an analysis method, based on a numerical procedure for digital signal filtering using Fourier series. The paper develops and experimentally validates transfer functions that enhance simulation results and enable accurate representation of behaviour of buildings built from hemp-lime material using the results of a post-occupancy research project. As a performance gap between design simulation and actual buildings occurs in relation to all buildings, this method has a wider scope of application in reducing the performance gap.

Suggested Citation

  • Ljubomir Jankovic, 2016. "Reducing Simulation Performance Gap in Hemp-Lime Buildings Using Fourier Filtering †," Sustainability, MDPI, vol. 8(9), pages 1-16, August.
    • Handle: RePEc:gam:jsusta:v:8:y:2016:i:9:p:864-:d:76932
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    References listed on IDEAS

    as
    1. Menezes, Anna Carolina & Cripps, Andrew & Bouchlaghem, Dino & Buswell, Richard, 2012. "Predicted vs. actual energy performance of non-domestic buildings: Using post-occupancy evaluation data to reduce the performance gap," Applied Energy, Elsevier, vol. 97(C), pages 355-364.
    2. Kalogirou, Soteris A., 2000. "Applications of artificial neural-networks for energy systems," Applied Energy, Elsevier, vol. 67(1-2), pages 17-35, September.
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    Cited by:

    1. Hao Wang & Pen-Chi Chiang & Yanpeng Cai & Chunhui Li & Xuan Wang & Tse-Lun Chen & Shiming Wei & Qian Huang, 2018. "Application of Wall and Insulation Materials on Green Building: A Review," Sustainability, MDPI, vol. 10(9), pages 1-21, September.

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