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Bespoke geometric glazing design for building energy performance analysis

Wardhana, Nicholas, Chatzivasileiadi, Aikaterini, Jabi, Wassim, Aish, Robert and Lannon, Simon 2018. Bespoke geometric glazing design for building energy performance analysis. Presented at: Mongeometrija 2018, Novi Sad, Serbia, 7-9 June 2018. Published in: Stojakovic, Vesna and Tepavcecic, Bojan eds. Conference Proceedings, The 6th International Conference on Geometry and Graphics Mongeometrija 2018. Novi Sad, Serbia: Serbian Society for Geometry and Graphics (SUGIG) and Faculty of Technical Sciences, University of Novi Sad, pp. 503-513.

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Abstract

Geometry has been found to be one of the main architectural design issues that architects are concerned with when they assess the energy performance of their models through the use of Building Performance Simulation tools. Accurate geometry, coupled with correct energy analysis settings, can avoid errors and provide more accurate results which are among the highest priorities for architects and engineers. Current energy analysis tools commonly use the window-to-wall ratio method to provide a fast and automatic way of modelling glazing, including on multiple surfaces instantaneously. However, this method is prone to geometrical inaccuracies in terms of the size and the location of the glazing, which can in turn contribute to the energy performance gap between modelled and monitored buildings. In addition, simultaneous glazing on multiple surfaces might not be entirely supported in existing applications for complex models. To alleviate these challenges, this paper presents a mechanism for creating a bespoke glazing design on curved surfaces based on the concept of UV-mapping. The glazing can be designed on a 2D planar vector drawing as a set of interconnected curves, either as straight lines or B-Splines. These curves are then mapped unto the UV space of the subdivided and planarised input wall as the glazing. It is hypothesised that a building model with a bespoke glazing design, while more time consuming, allows a more aesthetically representative and geometrically accurate glazing design than one with glazing based on the window-to-wall ratio method, thus minimising the energy performance gap.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Architecture
Publisher: Serbian Society for Geometry and Graphics (SUGIG) and Faculty of Technical Sciences, University of Novi Sad
ISBN: 9788660220556
Funders: Leverhulme Trust
Last Modified: 31 Jul 2018 21:43
URI: http://orca.cf.ac.uk/id/eprint/111486

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