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Sustainability 2016, 8(9), 864; doi:10.3390/su8090864

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

Zero Carbon Lab, Birmingham City University, Birmingham B5 5JU, UK
This paper is an extended version of our conference work “A method for eliminating simulation performance gap in buildings built form natural fibrous materials”. In Proceedings of the 2014 Building Simulation and Optimization Conference, 23–24 June 2014, London, UK.
Academic Editors: Behzad Sodagar and Rosi Fieldson
Received: 30 June 2016 / Revised: 15 August 2016 / Accepted: 19 August 2016 / Published: 29 August 2016
(This article belongs to the Special Issue Advances in Post Occupancy Evaluation)
View Full-Text   |   Download PDF [10477 KB, uploaded 29 August 2016]   |  

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. View Full-Text
Keywords: dynamic simulation; performance gap; hemp-lime; digital signal filtering; Fourier transform; post-occupancy monitoring dynamic simulation; performance gap; hemp-lime; digital signal filtering; Fourier transform; post-occupancy monitoring
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jankovic, L. Reducing Simulation Performance Gap in Hemp-Lime Buildings Using Fourier Filtering †. Sustainability 2016, 8, 864.

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